10-K/A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K/A

(Amendment No. 1)

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the Fiscal Year Ended December 31,2016

Commission File Number 001-13718

MDC PARTNERS INC.

(Exact Name of Registrant as Specified in Its Charter)

Canada	98-0364441
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification Number)

745 Fifth Avenue, 19th Floor

New York, New York, 10151

(646) 429-1800

(Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrant’s Principal Executive Offices)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Name of Each Exchange on Which Registered
Class A Subordinate Voting Shares, no par value	NASDAQ

Securities registered pursuant to Section 12(g) of the Act: None.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.Yes o No ý

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.Yes o No ý

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.Yes ý No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).Yes ý No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ý

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. (Check one):

Large accelerated filer ý Accelerated o Non-accelerated o Smaller reporting company o Emerging growth company o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).Yes o No ý

The aggregate market value of the shares of all classes of voting and non-voting common stock of the registrant held by non-affiliates as of June 30, 2016 was approximately $932.2 million, computed upon the basis of the closing sales price ($18.29/share) of the Class A subordinate voting shares on that date.

As of August 30, 2017, there were 58,426,654 outstanding shares of Class A subordinate voting shares without par value, and 3,755 outstanding shares of Class B multiple voting shares without par value, of the registrant.

Explanatory Paragraph

As previously disclosed in MDC Partners Inc.'s (the "Company") Quarterly Report on Form 10-Q for the period ended June 30, 2017, based in part on feedback from the SEC Staff, it was determined that the Company had previously misapplied the aggregation requirements of ASC 280, Segment Reporting. On August 30, 2017, the Company and its Board of Directors concluded that the Company's previously filed Form 10-K and Form 10-Q for the periods ended December 31, 2016 and March 31, 2017, respectively, should be amended.

This Amendment No. 1 on Form 10-K/A to the Annual Report on Form 10-K for the fiscal year ended December 31, 2016 (this "Form 10-K/A") of the Company is filed in connection with the Company’s change in the aggregation of its reportable segments, as previously disclosed in the Company’s Quarterly Report on Form 10-Q for the period ended June 30, 2017, and certain other changes described below.  This Form 10-K/A includes a restatement of Note 14 in the Notes to the Consolidated Financial Statements, conforming changes to the Business section in Part I, Item 1, revisions to Management’s Discussion and Analysis of Financial Condition and Results of Operations in Part II, Item 7, conforming changes to Note 1, Note 4 and Note 8 in the Notes to the Consolidated Financial Statements, and an updated discussion of our Controls and Procedures in Part II, Item 9A, in each case related to the recasting of prior segment disclosures into four (4) new reportable segments.  The recasting of prior period segment information was deemed to be a material error, but does not affect our consolidated financial condition or results of operations, balance sheets, cash flows or goodwill for any period. In addition, there was no impact to management's opinion as to the effectiveness of internal controls. See Note 14 in the Notes to the Consolidated Financial Statements for more information.

As previously disclosed in the Company’s Form 10-Q for the period ended March 31, 2017, the Company changed the presentation of book overdrafts on its statement of cash flows to classify the associated cash flows as operating activities. Book overdrafts were previously presented within financing activities. This Form 10-K/A includes the reclassification of these items, which have no impact on the Company’s consolidated statements of operations, comprehensive income (loss), or balance sheets. See Note 2 in the Notes to the Consolidated Financial Statements for more information.

As previously disclosed in the Company’s Quarterly Report on Form 10-Q for the period ended June 30, 2017, the Company identified and recorded out-of-period adjustments related to the misapplication of ASC 740 and ASC 850-740 accounting policies as they applied to the calculation of deferred tax liabilities.  The Company determined this to be not material to prior periods, and the correction has no impact on the Company’s statements of cash flows.  This Form 10-K/A includes revisions to correct this misapplication in the periods covered by this report.  See Note 2 and Note 9 in the Notes to the Consolidated Financial Statements for more information.

Except as set forth above, this Form 10-K/A has not been updated for events or information subsequent to the date of filing of the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2016.

MDC PARTNERS INC. 

TABLE OF CONTENTS

		Page
PART I
Item 1.	Business	1
Item 1A.	Risk Factors	5
Item 1B.	Unresolved Staff Comments	11
Item 2.	Properties	11
Item 3.	Legal Proceedings	12
Item 4.	Mine Safety Disclosures	12
PART II
Item 5.	Market for Registrant’s Common Equity and Related Stockholder Matters	13
Item 6.	Selected Financial Data	15
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	17
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	54
Item 8.	Financial Statements and Supplementary Data	55
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	104
Item 9A.	Controls and Procedures	104
Item 9B.	Other Information	107
PART III
Item 10.	Directors, Executive Officers and Corporate Governance	108
Item 11.	Executive Compensation	109
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	109
Item 13.	Certain Relationships and Related Transactions and Director Independence	109
Item 14.	Principal Accountant Fees and Services	109
PART IV
Item 15.	Exhibits and Financial Statements Schedules	110
Item 16	Amendment No. 1 on Form 10-K/A Summary	112
Signatures		113

i

References in this Annual Report on Amendment No. 1 on Form 10-K/A to “MDC Partners,” “MDC,” the “Company,” “we,” “us” and “our” refer to MDC Partners Inc. and, unless the context otherwise requires or otherwise is expressly stated, its subsidiaries. References in the Annual Report on Amendment No. 1 on Form 10-K/A to “Partner Firms” generally refer to the Company’s subsidiary agencies.

All dollar amounts are stated in U.S. dollars unless otherwise stated.

DOCUMENTS INCORPORATED BY REFERENCE

The following sections of the Proxy Statement for the Annual Meeting of Stockholders to be held on June 7, 2017, are incorporated by reference in Parts I and III: “Election of Directors,” “Section 16(a) Beneficial Ownership Reporting Compliance,” “Executive Compensation,” “Report of the Human Resources and Compensation Committee on Executive Compensation,” “Outstanding Shares,” “Appointment of Auditors,” and “Certain Relationships and Related Transactions.”

AVAILABLE INFORMATION

Information regarding the Company’s Annual Report on Amendment No. 1 on Form 10-K/A, quarterly reports on Form 10-Q, current reports on Form 8-K, and any amendments to these reports, will be made available, free of charge, at the Company’s website at http://www.mdc-partners.com, as soon as reasonably practicable after the Company electronically files such reports with or furnishes them to the Securities and Exchange Commission (the “SEC”). The information found on, or otherwise accessible through, the Company’s website is not incorporated into, and does not form a part of, this Annual Report or Amendment No. 1 on Form 10-K/A. Any document that the Company files with the SEC may also be read and copied at the SEC’s Public Reference Room located at 100 F. Street, N.E., Washington, DC 20549. Please call the SEC at 1-800-SEC-0330 for further information on the operation of Public Reference Room. The Company’s filings are also available to the public from the SEC’s website at http://www.sec.gov.

The Company’s Code of Conduct (Whistleblower Policy) and each of the charters for the Audit Committee, Human Resources and Compensation Committee and Nominating and Corporate Governance Committee, are available free of charge on the Company’s website at http://www.mdc-partners.com or by writing to MDC Partners Inc., 745 Fifth Avenue, 19th Floor, New York, New York 10151, Attention: Investor Relations.

ii

FORWARD-LOOKING STATEMENTS

This document contains forward-looking statements. The Company’s representatives may also make forward-looking statements orally from time to time. Statements in this document that are not historical facts, including statements about the Company’s beliefs and expectations, recent business and economic trends, potential acquisitions, and estimates of amounts for redeemable noncontrolling interests and deferred acquisition consideration, constitute forward-looking statements. These statements are based on current plans, estimates and projections, and are subject to change based on a number of factors, including those outlined in this section. Forward-looking statements speak only as of the date they are made, and the Company undertakes no obligation to update publicly any of them in light of new information or future events, if any.

Forward-looking statements involve inherent risks and uncertainties. A number of important factors could cause actual results to differ materially from those contained in any forward-looking statements. Such risk factors include, but are not limited to, the following:

• successful completion of the convertible preference financing with Goldman Sachs on the anticipated terms and conditions;

• risks associated with the one Canadian securities class action litigation claim;

• risks associated with severe effects of international, national and regional economic conditions;

• the Company’s ability to attract new clients and retain existing clients;

• the spending patterns and financial success of the Company’s clients;

• the Company’s ability to retain and attract key employees;

• the Company’s ability to remain in compliance with its debt agreements and the Company’s ability to finance its contingent payment obligations when due and payable, including but not limited to those relating to redeemable noncontrolling interests and deferred acquisition consideration;

• the successful completion and integration of acquisitions which complement and expand the Company’s business capabilities; and

• foreign currency fluctuations.

The Company’s business strategy includes ongoing efforts to engage in acquisitions of ownership interests in entities in the marketing communications services industry. The Company intends to finance these acquisitions by using available cash from operations, from borrowings under the Credit Agreement (as defined below) and through incurrence of bridge or other debt financing, any of which may increase the Company’s leverage ratios, or by issuing equity, which may have a dilutive impact on existing shareholders proportionate ownership. At any given time, the Company may be engaged in a number of discussions that may result in one or more acquisitions. These opportunities require confidentiality and may involve negotiations that require quick responses by the Company. Although there is uncertainty that any of these discussions will result in definitive agreements or the completion of any transactions, the announcement of any such transaction may lead to increased volatility in the trading price of the Company’s securities.

Investors should carefully consider these risk factors and the additional risk factors outlined in more detail in this Annual Report on Amendment No. 1 on Form 10-K/A under Item 1A, under the caption “Risk Factors” and in the Company’s other SEC filings.

SUPPLEMENTARY FINANCIAL INFORMATION

The Company reports its financial results in accordance with generally accepted accounting principles of the United States of America (“U.S. GAAP”). However, the Company has included certain non-U.S. GAAP financial measures and ratios, which it believes, provide useful information to both management and readers of this report in measuring the financial performance and financial condition of the Company. These measures do not have a standardized meaning prescribed by U.S. GAAP and, therefore, may not be comparable to similarly titled measures presented by other publicly traded companies, nor should they be construed as an alternative to other titled measures determined in accordance with U.S. GAAP.

iii

PART I

Item 1. Business

MDC PARTNERS INC.

MDC was formed by Certificate of Amalgamation effective December 19, 1986, pursuant to the Business Corporations Act (Ontario). Effective December 19, 1986, MDC amalgamated with Branbury Explorations Limited, and thereby became a public company operating under the name of MDC Corporation. On January 1, 2004, MDC changed its name to its current name, MDC Partners Inc., and on June 28, 2004, MDC was continued under Section 187 of the Canada Business Corporations Act. MDC’s registered address is located at 33 Draper Street, Toronto, Ontario, M5V 2M3, and its head office address is located at 745 Fifth Avenue, 19th Floor, New York, New York 10151.

About Us

MDC is a leading provider of global marketing, advertising, activation, communications and strategic consulting solutions. MDC and its Partner Firms (as defined below) deliver a wide range of customized services, including (1) global advertising and marketing services, (2) media buying, planning and optimization, (3) interactive and mobile marketing, (4) direct marketing, (5) database and customer relationship management, (6) sales promotion, (7) corporate communications, (8) market research, (9) data analytics and insights, (10) corporate identity, design and branding services, (11) social media communications, (12) product and service innovation and (13) e-commerce management.

Market Strategy

MDC’s strategy is to build, grow and acquire market-leading businesses that deliver innovative, value-added marketing, activation, communications and strategic consulting services to their clients. By doing so, MDC strives to be a partnership of marketing communications and consulting companies (or “Partner Firms”) whose strategic, creative and innovative solutions are media-agnostic, challenge the status quo, achieve measurable superior returns on investment, and drive transformative growth and business performance for its clients and stakeholders.

The MDC model is driven by three key elements:

Perpetual Partnership.  The perpetual partnership model creates ongoing alignment of interests between MDC and its Partner Firms to drive the Company’s overall performance by (1) identifying the “right” Partner Firms with a sustainable differentiated position in the marketplace, (2) creating the “right” partnership structure by taking a majority ownership position and leaving a substantial noncontrolling equity or economic ownership position in the hands of operating management to incentivize long-term growth, (3) providing succession planning support and compensation models to incentivize future leaders and second-generation executives, (4) leveraging the network's scale to provide access to strategic resources and best practices and (5) focusing on delivering financial results.

Entrepreneurialism.  The entrepreneurial spirit of both MDC and its Partner Firms is optimized through (1) its unique perpetual partnership model that incentivizes senior-level involvement and ambition, (2) access to shared resources within the Corporate Group that allow individual firms to focus on client business and company growth and (3) MDC’s collaborative creation of customized solutions to support and grow Partner Firm businesses.

Human and Financial Capital.  The perpetual partnership model balances accountability with financial flexibility and meaningful incentives to support growth.

Financial Reporting Segments

MDC conducts its business through its network of Partner Firms, the “Advertising and Communications Group”, who provide a comprehensive array of marketing and communications services for clients both domestically and globally. The Partner Firms provide a wide range of service offerings, which in some cases are the same or similar service offerings. The core or principal service offerings are the key factors that distinguish the Partner Firms from one another. Each Partner Firm represents an operating segment and the Company aggregates its Partner Firms to report in four reportable segments, plus an “All Other” category.

The four reportable segments are as follows:

Global Integrated Agencies - This segment is comprised of the Company’s six global, integrated Partner Firms with broad marketing communication capabilities, including advertising, branding, digital, social media, design and production services, serving multinational clients around the world.

Domestic Creative Agencies - This segment is comprised of four Partner Firms that are national advertising agencies leveraging creative capabilities at their core.

1

Specialist Communications - This segment is comprised of seven Partner Firms that are each communications agencies with core service offerings in public relations and related communications services.

Media Services - This segment is comprised of a unique single operating segment with media buying and planning as its core competency.

The All Other category consists of the Company's remaining Partner Firms that provide a range of diverse marketing communication services, but are not eligible for aggregation with the reportable segments. Each of the Partner Firms in the All Other category represent less than 10% of consolidated revenue and do not meet the criteria to be a separate reportable segment.

In addition, MDC reports its corporate office expenses incurred in connection with the strategic resources provided to the Partner Firms, as well as certain other centrally managed expenses that are not fully allocated to the Partner Firms as Corporate. Corporate provides client and business development support to the Partner Firms as well as certain strategic resources, including accounting, administrative, financial, real estate, human resource and legal functions. Additional expenses managed by the corporate office that are directly related to the Partner Firms are allocated to the appropriate reportable segment and the All Other category.

For further information relating to the Company’s segments, including financial information, refer to Note 14 (Segment Information) of the Notes to the Consolidated Financial Statements included in this Annual Report and to “Item 7 - Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Ownership Information

The table below sets forth MDC’s voting ownership percentage of each listed Partner Firm as of December 31, 2016.  The table does not display all agencies or components within each Partner Firm, for which MDC may or may not maintain the same ownership percentage. MDC maintains a majority or 100% ownership position in substantially all of its Partner Firms, with management of the agencies owning the remaining equity if any.  However, MDC’s effective economic interest in each Partner Firm may vary from its voting ownership interest due to certain factors, such as the existence of contingent deferred acquisition payments and/or cash distribution limitations related to noncontrolling interest holders.  See footnote 4 to the Notes to the Consolidated Financial Statements for more information regarding the Company’s contingent purchase price obligations and noncontrolling interests.

2

MDC PARTNERS INC.

SCHEDULE OF ADVERTISING AND COMMUNICATIONS COMPANIES

	Year of Initial
Company	Investment	Locations	Ownership %
Consolidated:
Global Integrated Agencies:
72andSunny	2010	Los Angeles, New York, Netherlands, UK	100.0	%
Anomaly	2011	New York, Los Angeles, Netherlands, Canada, UK, China	100.0	%
Crispin Porter + Bogusky	2001	Miami, Boulder, Los Angeles, UK, Sweden, Denmark, Brazil, China	100.0	%
Doner	2012	Detroit, Cleveland, Los Angeles, UK	30%/ 70%*
Forsman & Bodenfors	2016	Sweden	100.0	%
kbs	2004	New York, Canada, China, UK, Los Angeles	100.0	%
Domestic Creative Agencies:
Colle + McVoy	1999	Minneapolis	100.0	%
Laird + Partners	2011	New York	65.0	%
Mono Advertising	2004	Minneapolis, San Francisco	70.0	%
Union	2013	Canada	75.0	%
Specialist Communications:
Allison & Partners	2010	San Francisco, Los Angeles, New York and other US Locations, China, France, Singapore, UK, Japan, Germany	75.5	%
HL Group Partners	2007	New York, Los Angeles, China	100.0	%
Hunter PR	2014	New York, UK	65.0	%
Kwittken	2010	New York, UK, Canada	75.0	%
Luntz Global	2014	Washington, D.C.	100.0	%
Sloane & Company	2010	New York	100.0	%
Veritas	1993	Canada	95.0	%
Media Services:
MDC Media Partners	2010	New York, Detroit, Atlanta, Los Angeles, Austin	100.0	%
All Other:
6degrees Communications	1993	Canada	74.9	%
Bruce Mau Design	2004	Canada	100.0	%
Civilian	2000	Chicago	100.0	%
Concentric Partners	2011	New York, UK	72.8	%
Gale Partners	2014	Canada, New York, India	60.0	%
Hello Design	2004	Los Angeles	49.0	%
Kenna	2010	Canada	100.0	%
Kingsdale	2014	Canada, New York	65.0	%
Northstar Research Partners	1998	Canada, New York, UK, Indonesia	91.8	%
Redscout	2007	New York, San Francisco, UK	100.0	%
Relevent	2010	New York	100.0	%

3

Rumble Fox	2014	New York	75.5	%
Source Marketing	1998	Norwalk, Pittsburgh	97.0	%
TEAM	2010	Ft. Lauderdale	100.0	%
Vitro	2004	San Diego, Austin	81.6	%
Yamamoto	2000	Minneapolis	100.0	%
Y Media Labs	2015	Redwood City, New York, India	60.0	%

* The Company has 30% voting interest and convertible preferred interests that allow the Company to increase ordinary voting ownership to 70% at the Company’s option.

Competition

In the competitive, highly fragmented marketing and communications industry, MDC’s Partner Firms compete for business and talent with the operating subsidiaries of large global holding companies such as Omnicom Group Inc., Interpublic Group of Companies, Inc., WPP plc, Publicis Groupe SA, Dentsu Inc. and Havas SA. These global holding companies generally have greater resources than those available to MDC and its subsidiaries, and such resources may enable them to aggressively compete with the Company’s marketing communications businesses. Each of MDC’s Partner Firms also faces competition from numerous independent agencies that operate in multiple markets, as well as newer competitors such as IT consulting, tech platforms, and other services firms that have begun to offer marketing-related services. MDC’s Partner Firms must compete with all of these other companies to maintain existing client relationships and to obtain new clients and assignments. MDC’s Partner Firms compete at this level by providing clients with disruptive marketing ideas and strategies that are focused on increasing clients’ revenues and profits. These existing and potential clients include multinational corporations and national companies with mid-to-large sized marketing budgets. MDC also benefits from cooperation among its entrepreneurial Partner Firms through referrals and the sharing of both services and expertise, which enables MDC to service clients’ varied marketing needs around the world by crafting custom integrated solutions.

A Partner Firm’s ability to compete for new clients is affected in some instances by the policy, which many advertisers and marketers impose, of not permitting their agencies to represent competitive accounts in the same market. In the vast majority of cases, however, MDC’s consistent maintenance of separate, independent operating companies has enabled MDC to represent competing clients across its network.

Industry Trends

There are several recent economic and industry trends that affect or may be expected to affect the Company’s results of operations. Historically, advertising has been the primary service provided by the marketing communications industry. However, as clients aim to establish one-to-one relationships with customers, and more accurately measure the effectiveness of their marketing expenditures, specialized and digital communications services and database marketing and analytics are consuming a growing portion of marketing dollars. The Company believes these changes in the way consumers interact with media is increasing the demand for a broader range of non-advertising marketing communications services (i.e., direct marketing, sales promotion, interactive, mobile, strategic communications and public relations), which we expect could have a positive impact on our results of operations. In addition, the rise of technology and data solutions have rendered scale less crucial as it once was in areas such as media buying, creating significant opportunities for agile and modern players. Global marketers now demand breakthrough and integrated creative ideas, and no longer require traditional brick-and-mortar communications partners in every market to optimize the effectiveness of their marketing efforts. Combined with the fragmentation of the media landscape, these factors provide new opportunities for small to mid-sized communications companies like those in the MDC network. In addition, marketers now require ever greater speed-to-market to drive financial returns on their marketing and media investment, causing them to turn to more nimble, entrepreneurial and collaborative communications firms like MDC Partner Firms.

As client procurement departments have focused increasingly on marketing services company fees in recent years, the Company has invested in resources to work with client procurement departments to ensure that we are able to deliver against client goals in a mutually beneficial way. For example, the Company has explored new compensation models, such as performance-based incentive payments and equity, in order to greater align our success with our clients. These incentive payments may offset negative pricing pressure from client procurement departments.

4

Clients

The Company serves clients in virtually every industry, and in many cases, the same clients in various locations, and through several Partner Firms and across many disciplines. Representation of a client rarely means that MDC handles marketing communications for all brands or product lines of the client in every geographical location. For further information regarding revenues and long-lived assets on a geographical basis for each of the last three years, see Note 14 of the Notes to the Consolidated Financial Statements.

MDC’s agencies have written contracts with many of their clients. As is customary in the industry, these contracts generally provide for termination by either party on relatively short notice, usually 90 days. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Executive Overview” for a further discussion of MDC’s arrangements with its clients.

During 2016, 2015 and 2014, the Company did not have a client that accounted for 5% or more of revenues. In addition, MDC’s ten largest clients (measured by revenue generated) accounted for 23%, 24% and 24% of 2016, 2015 and 2014 revenues, respectively.

Employees

As of December 31,2016, MDC and its subsidiaries had the following number of employees:

Segment	Total
Global Integrated Agencies	3,131
Domestic Creative Agencies	418
Specialist Communications	678
Media Services	524
All Other	1,309
Corporate	78
Total	6,138

See “Management’s Discussion and Analysis of Financial Condition and Results of Operations” for a discussion of the effect of cost of services sold on MDC’s historical results of operations. Because of the personal service character of the marketing communications businesses, the quality of personnel is of crucial importance to MDC’s continuing success. MDC considers its relations with its employees to be satisfactory.

Effect of Environmental Laws

MDC believes it is substantially in compliance with all regulations concerning the discharge of materials into the environment, and such regulations have not had a material effect on the capital expenditures or operations of MDC.

Item 1A. Risk Factors

The following factors could adversely affect the Company’s revenues, results of operations or financial condition. See also “Forward-Looking Statements.”

The pending preferred equity financing may not be completed, which could adversely affect our business, results of operations and/or financial condition or the price of our Class A shares.

On February 14, 2017, we entered into a securities purchase agreement (the “Purchase Agreement”) with Broad Street Principal Investments, L.L.C., an affiliate of The Goldman Sachs Group Inc. (the “Purchaser”), pursuant to which we have agreed to issue and sell to the Purchaser and the Purchaser has agreed to purchase 95,000 newly authorized Series 4 convertible preference shares for an aggregate purchase price of $95.0 million (the “Preference Shares”). The transaction is expected to close in the first quarter of 2017, subject to the conditions set forth in the Purchase Agreement. Although the Purchase Agreement requires the parties to use reasonable efforts to consummate the transaction, we cannot assure you that all closing conditions will be satisfied or waived. The Purchase Agreement will expire if the closing has not occurred by the sixtieth day following the date of the Purchase Agreement. If the transaction is not completed, we will be subject to a number of risks, including: we must pay costs related to the transaction, including legal and financial advisory fees, whether the transaction is completed or not; the trading price of our Class A shares may decline if the transaction is not completed, to the extent that the market price reflects a market assumption that the transaction will be completed; we may be required to seek alternative sources of liquidity, as to the availability or terms of which we cannot provide assurance, and we could be subject to litigation related to the failure to complete the transaction or other factors, all of which may adversely affect our business, results of operations and/or financial results and the price of our Class A shares.

5

Future economic and financial conditions could adversely impact our financial condition and results.

Advertising, marketing and communications expenditures are sensitive to global, national and regional macroeconomic conditions, as well as specific budgeting levels and buying patterns. Adverse developments including heightened uncertainty could reduce the demand for our services, which could adversely affect our revenue, results of operations, and financial position in 2017.

a. As a marketing services company, our revenues are highly susceptible to declines as a result of unfavorable economic conditions.

Global economic conditions affect the advertising and marketing services industry more severely than other industries. In the past, some clients have responded to weakening economic conditions with reductions to their marketing budgets, which include discretionary components that are easier to reduce in the short term than other operating expenses. This pattern may recur in the future. Decreases in our revenue would negatively affect our financial results, including a reduction of our estimates of free cash flow from operations.

b. If our clients experience financial distress, their weakened financial position could negatively affect our own financial position and results.

We have a diverse client base, and at any given time, one or more of our clients may experience financial difficulty, file for bankruptcy protection or go out of business. The unfavorable economic and financial conditions that have impacted many sectors of the global economy could result in an increase in client financial difficulties that affect us. The direct impact on us could include reduced revenues and write offs of accounts receivable. If these effects were severe, the indirect impact could include impairments of goodwill, covenant violations relating to MDC’s senior secured revolving credit agreement (the “Credit Agreement”) or the $900 million aggregate principal amount of 6.50% notes due 2024 (the “6.50% Notes”), or reduced liquidity. Our ten largest clients (measured by revenue generated) accounted for 23% of our revenue in 2016.

c. Conditions in the credit markets could adversely impact our results of operations and financial position.

Turmoil in the credit markets or a contraction in the availability of credit would make it more difficult for businesses to meet their capital requirements and could lead clients to change their financial relationship with their vendors, including us. If that were to occur, it could materially adversely impact our results of operations and financial position.

MDC competes for clients in highly competitive industries.

The Company operates in a highly competitive environment in an industry characterized by numerous firms of varying sizes, with no single firm or group of firms having a dominant position in the marketplace. MDC is, however, smaller than several of its larger industry competitors. Competitive factors include creative reputation, management, personal relationships, quality and reliability of service and expertise in particular niche areas of the marketplace. In addition, because a firm’s principal asset is its people, barriers to entry are minimal, and relatively small firms are, on occasion, able to take all or some portion of a client’s business from a larger competitor.

While many of MDC’s client relationships are long-standing, companies put their advertising and marketing services businesses up for competitive review from time to time, including at times when clients enter into strategic transactions or experienced senior management changes. From year to year, the identities of MDC’s ten largest customers may change, as a result of client losses and additions and other factors. To the extent that the Company fails to maintain existing clients or attract new clients, MDC’s business, financial condition and operating results may be affected in a materially adverse manner.

The loss of lines of credit under the Credit Agreement could adversely affect MDC’s liquidity and our ability to implement MDC’s acquisition strategy and fund any put options if exercised.

MDC uses amounts available under the Credit Agreement, together with cash flow from operations, to fund its working capital needs, to fund the exercise of put option obligations and to fund our strategy of making selective acquisitions of ownership interests in entities in the marketing communications services industry, including through contingent deferred acquisition payments.

The Company is currently in compliance with all of the terms and conditions of the Credit Agreement. If, however, events were to occur, which result in MDC losing all or a substantial portion of its available credit under the Credit Agreement, or if MDC was prevented from accessing such lines of credit due to other restrictions such as those in the indenture governing the 6.50% Notes, MDC could be required to seek other sources of liquidity. In addition, if MDC were unable to replace this source of liquidity, then MDC’s ability to fund its working capital needs and any contingent obligations with respect to put options or contingent deferred acquisition payments would be materially adversely affected.

6

We have significant contingent obligations related to deferred acquisition consideration and noncontrolling interests in our subsidiaries, which will require us to utilize our cash flow and/or to incur additional debt to satisfy.

The Company has made a number of acquisitions for which it has deferred payment of a portion of the purchase price, usually for a period between one to five years after the acquisition. The deferred acquisition consideration is generally payable based on achievement of certain thresholds of future earnings of the acquired company and, in certain cases, also based on the rate of growth of those earnings. Once any contingency is resolved, the Company may pay the contingent consideration over time.

The Company records liabilities on its balance sheet for deferred acquisition payments at their estimated value based on the current performance of the business, which are re-measured each quarter. At December 31,2016, these aggregate liabilities were $229.6 million, of which $108.3 million, $40.0 million, $40.4 million and $40.8 million would be payable in 2017, 2018, 2019 and thereafter, respectively.

In addition to the Company’s obligations for deferred acquisition consideration, managers of certain of the Company’s acquired subsidiaries hold noncontrolling interests in such subsidiaries. In the case of certain noncontrolling interests related to acquisitions, such managers are entitled to a proportionate distribution of earnings from the relevant subsidiary, which is recognized on the Company’s consolidated income statement under “Net income attributable to the noncontrolling interests.”

Noncontrolling shareholders often have the right to require the Company to purchase all or part of its interest, either at specified dates or upon the termination of such shareholder’s employment with the subsidiary or death (put rights). In addition, the Company usually has rights to call noncontrolling shareholders’ interests at a specified date. The purchase price for both puts and calls is typically calculated based on specified formulas tied to the financial performance of the subsidiary.

The Company recorded $60.2 million on its December 31,2016 balance sheet as redeemable noncontrolling interests for its estimated obligations in respect of noncontrolling shareholder put and call rights based on the current performance of the subsidiaries, $12.5 million of which related to put rights for which, if exercised, the payments are due at specified dates, with the remainder of redeemable noncontrolling interests attributable to put or call rights exercisable only upon termination of employment or death. No estimated obligation is recorded on the balance sheet for noncontrolling interests for which the Company has a call right but the noncontrolling holder has no put right.

Payments to be made by the Company in respect of deferred acquisition consideration and noncontrolling shareholder put rights may be significantly higher than the estimated amounts described above because the actual obligation adjusts based on the performance of the acquired businesses over time, including future growth in earnings from the calculations made at December 31,2016. Similarly, the payments made by the Company under call rights would increase with growth in earnings of the acquired businesses. The Company expects that deferred contingent consideration and noncontrolling interests for managers may be features of future acquisitions that it may undertake and that it may also grant similar noncontrolling interests to managers of its subsidiaries unrelated to acquisitions.

The Company expects that its obligations in respect of deferred acquisition consideration and payments to noncontrolling shareholders under put and call rights will be a significant use of the Company’s liquidity in the foreseeable future, whether in the form of free cash flow or borrowings under the Company’s revolving credit agreement or from other funding sources, including the anticipated proceeds from the issuance and sale of $95.0 million of Preference Shares. For further information, see the disclosure under the heading “Business — Ownership Information” and the heading “Liquidity and Capital Resources.”

MDC may not realize the benefits it expects from past acquisitions or acquisitions MDC may make in the future.

MDC’s business strategy includes ongoing efforts to engage in material acquisitions of ownership interests in entities in the marketing communications services industry. MDC intends to finance these acquisitions by using available cash from operations and through incurrence of debt or bridge financing, either of which may increase its leverage ratios, or by issuing equity, which may have a dilutive impact on its existing shareholders. At any given time MDC may be engaged in a number of discussions that may result in one or more material acquisitions. These opportunities require confidentiality and may involve negotiations that require quick responses by MDC. Although there is uncertainty that any of these discussions will result in definitive agreements or the completion of any transactions, the announcement of any such transaction may lead to increased volatility in the trading price of its securities.

Our expenses have, in recent periods, increased at a greater rate than revenues, which in part reflects both the increase in expenses for deferred acquisition consideration and from our investment in headcount for certain growth initiatives. Should our acquisitions continue to outperform current expectations, expenses for deferred acquisition consideration could increase as well in future periods. If our growth initiatives do not provide sufficient revenue to offset the incremental costs in future periods, profits could be reduced and severance expense could be incurred in order to return to targeted profit margins over time.

The success of acquisitions or strategic investments depends on the effective integration of newly acquired businesses into MDC’s current operations. Such integration is subject to risks and uncertainties, including realization of anticipated synergies and cost savings, the ability to retain and attract personnel and clients, the diversion of management’s attention from other business

7

concerns, and undisclosed or potential legal liabilities of the acquired company. MDC may not realize the strategic and financial benefits that it expects from any of its past acquisitions, or any future acquisitions.

MDC’s business could be adversely affected if it loses key clients or executives.

MDC’s strategy has been to acquire ownership stakes in diverse marketing communications businesses to minimize the effects that might arise from the loss of any one client or executive. The loss of one or more clients could materially affect the results of the individual Partner Firms and the Company as a whole. Management succession at our operating units is very important to the ongoing results of the Company because, as in any service business, the success of a particular agency is dependent upon the leadership of key executives and management personnel. If key executives were to leave our operating units, the relationships that MDC has with its clients could be adversely affected.

MDC’s ability to generate new business from new and existing clients may be limited.

To increase its revenues, MDC needs to obtain additional clients or generate demand for additional services from existing clients. MDC’s ability to generate initial demand for its services from new clients and additional demand from existing clients is subject to such clients’ and potential clients’ requirements, pre-existing vendor relationships, financial conditions, strategic plans and internal resources, as well as the quality of MDC’s employees, services and reputation and the breadth of its services. To the extent MDC cannot generate new business from new and existing clients due to these limitations, MDC’s ability to grow its business and to increase its revenues will be limited.

MDC’s business could be adversely affected if it loses or fails to attract key employees.

Employees, including creative, research, media, account and practice group specialists, and their skills and relationships with clients, are among MDC’s most important assets. An important aspect of MDC’s competitiveness is its ability to retain key employee and management personnel. Compensation for these key employees is an essential factor in attracting and retaining them, and MDC may not offer a level of compensation sufficient to attract and retain these key employees. If MDC fails to hire and retain a sufficient number of these key employees, it may not be able to compete effectively. If key executives were to leave our operating units, the relationships that MDC has with its clients could be adversely affected.

MDC is exposed to the risk of client defaults.

MDC’s agencies often incur expenses on behalf of their clients for productions in order to secure a variety of media time and space, in exchange for which they receive a fee. The difference between the gross cost of the production and media and the net revenue earned by us can be significant. While MDC takes precautions against default on payment for these services (such as credit analysis and advance billing of clients) and has historically had a very low incidence of default, MDC is still exposed to the risk of significant uncollectible receivables from our clients. The risk of a material loss could significantly increase in periods of severe economic downturn. Such a loss could have a material adverse effect on our results of operations and financial position.

MDC’s results of operations are subject to currency fluctuation risks.

Although MDC’s financial results are reported in U.S. dollars, a portion of its revenues and operating costs are denominated in currencies other than the U.S. dollar. As a result, fluctuations in the exchange rate between the U.S. dollar and other currencies, particularly the Canadian dollar, may affect MDC’s financial results and competitive position.

Goodwill and intangible assets may become impaired.

We have recorded a significant amount of goodwill and intangible assets in our consolidated financial statements in accordance with U.S. GAAP resulting from our acquisition activities, which principally represents the specialized know-how of the workforce at the agencies we have acquired. We test, at least annually, the carrying value of goodwill for impairment, as discussed in Note 2 of the Notes to the Consolidated Financial Statements included herein. The estimates and assumptions about future results of operations and cash flows made in connection with the impairment testing could differ from future actual results of operations and cash flows. As discussed in Note 2 and Note 8 of the Notes to the Consolidated Financial Statements included herein, for the year ended December 31, 2016, we have recorded goodwill impairment of $48.5 million. We have concluded for the years ended December 31, 2015 and 2014 that our goodwill and intangible assets relating to continuing operations are not impaired. Future events could cause us to conclude that the asset values associated with a given operation may become impaired. Any resulting impairment loss could materially adversely affect our results of operations and financial condition. For the year ended December 31, 2016, a goodwill write off of $0.8 million was included in other income (expense) related to the sale of its ownership interests in Bryan Mills Iradesso Corporation (“Bryan Mills”) to the noncontrolling shareholders. For the year ended December 31, 2014, a goodwill write off of $15.6 million was included in the loss from discontinued operations as a result of MDC’s decision to strategically sell the net assets of Accent Marketing Services, L.L.C. (“Accent”).

MDC is subject to regulations and litigation risk that could restrict our activities or negatively impact our revenues.

Advertising and marketing communications businesses are subject to government regulation, both domestic and foreign. There has been an increasing tendency in the United States on the part of advertisers to resort to litigation and self-regulatory

8

bodies to challenge comparative advertising on the grounds that the advertising is false and deceptive. Moreover, there has recently been an expansion of specific rules, prohibitions, media restrictions, labeling disclosures, and warning requirements with respect to advertising for certain products and the usage of personally identifiable information. Representatives within government bodies, both domestic and foreign, continue to initiate proposals to ban the advertising of specific products and to impose taxes on or deny deductions for advertising which, if successful, may have an adverse effect on advertising expenditures and consequently MDC’s revenues.

Certain of MDC’s agencies produce software and e-commerce tools for their clients, and these product offerings have become increasingly subject to litigation based on allegations of patent infringement or other violations of intellectual property rights. As we expand these product offerings, the possibility of an intellectual property claim against us grows. Any such claim, with or without merit, could result in costly litigation and distract management from day-to-day operations and may result in us deciding to enter into license agreements to avoid ongoing patent litigation costs. If we are not successful in defending such claims, we could be required to stop offering these services, pay monetary amounts as damages, enter into royalty or licensing arrangements, or satisfy indemnification obligations that we have with some of our clients. Such arrangements may cause our operating margins to decline.

In addition, laws and regulations related to user privacy, use of personal information and internet tracking technologies have been proposed or enacted in the United States and certain international markets. These laws and regulations could affect the acceptance of the internet as an advertising medium. These actions could affect our business and reduce demand for certain of our services, which could have a material adverse effect on our results of operations and financial position.

We rely extensively on information technology systems.

We rely on information technologies and infrastructure to manage our business, including digital storage of client marketing and advertising information, developing new business opportunities and processing business transactions. Our information technology systems are potentially vulnerable to system failures and network disruptions, malicious intrusion and random attack. While we have taken what we believe are prudent measures to protect our data and information technology systems, we cannot assure you that our efforts will prevent system failures or network disruptions or breaches in our systems.  Any such breakdowns or breaches in our systems or data-protection policies could adversely affect our reputation or business.   

The Company is subject to an ongoing securities class action litigation claim and a government investigation.

The Company remains subject to an ongoing securities class action litigation claim in Canada, although the U.S. securities class action was dismissed, with prejudice.  We maintain insurance for a lawsuit of this nature; however, our insurance coverage does not apply in all circumstances and may be insufficient to cover the fees and potential damages and/or settlement costs relating to this class action lawsuit. Moreover, adverse publicity associated with this litigation claim could decrease client demand for our partner agencies’ services. As a result, the securities class action lawsuit described in more detail under “Item 3 - Legal Proceedings,” could have a material adverse effect on our business, reputation, financial condition, results of operations, liquidity and the trading price of our Class A shares.

In addition, one of the Company’s subsidiary agencies received a subpoena from the U.S. Department of Justice Antitrust Division concerning its ongoing investigation of production practices in the advertising industry. The Company and its subsidiary are fully cooperating with this confidential investigation. Although the ultimate effect of this investigation is inherently uncertain, we do not at this time believe that the investigation will have a material adverse effect on our results of operations or financial position. However, the ultimate resolution of this investigation could be materially different from our current assessment.

Future issuances of equity securities, which may include securities that would rank senior to our Class A shares, may cause dilution to our existing shareholders and adversely affect the market price of our Class A shares.

The market price of our Class A shares could decline as a result of sales of a large number of our Class A shares in the market, or the sale of securities convertible into a large number of our Class A shares. The perception that these sales could occur may also depress the market price of our Class A shares. On February 14, 2017, we entered into the Purchase Agreement pursuant to which, subject to the terms and conditions thereof, we expect to issue 95,000 Series 4 convertible preference shares with an initial aggregate liquidation preference of $95.0 million, which will be convertible into Class A shares or our Series 5 convertible preference shares at an initial conversion price of $10.00 per share. The terms of the Preference Shares will provide that the conversion price may be reduced, which would result in the Preference Shares being convertible into additional Class A shares, upon certain events including distributions on our Class A shares or issuances of additional Class A shares or equity-linked securities at a price less than the then-applicable conversion price. The conversion of the Preference Shares may adversely affect the market price of our Class A shares, and the market price of our Class A shares may be affected by factors, such as whether the market price is near or above the conversion price, that could make conversion of the Preference Shares more likely. In addition, the Preference Shares will rank senior to the Class A shares, which could affect the value of the Class A shares on liquidation or, as a result of contractual provisions, on a change in control transaction. For example, pursuant to the Purchase Agreement, the Company has agreed with the Purchaser, with certain exceptions, not to become party to certain change in control transactions that are

9

approved by the Board other than a qualifying transaction in which holders of Preference Shares are entitled to receive cash or qualifying listed securities with a value equal to the then-applicable liquidation preference plus accrued and unpaid dividends. See Note 22 of the Notes to the Consolidated Financial Statements for more information regarding the terms of the Preference Shares.

Additionally, any convertible or exchangeable securities that we issue may have rights, preferences and privileges more favorable than those of our Class A shares, and may result in dilution to owners of our Class A shares. Because our decision to issue additional debt or equity securities in any future offering will depend on market conditions and other factors beyond our control, we cannot predict or estimate the amount, timing or nature of our future issuances. Also, we cannot predict the effect, if any, of future issuances of our Class A shares on the market price of our Class A shares.

The indenture governing the 6.50% Notes and the Credit Agreement governing our secured line of credit contain various covenants that limit our discretion in the operation of our business.

The indenture governing the 6.50% Notes and the Credit Agreement governing our lines of credit contain various provisions that limit our discretion in the operation of our business by restricting our ability to:

• sell assets;

• pay dividends and make other distributions;

• redeem or repurchase our capital stock;

• incur additional debt and issue capital stock;

• create liens;

• consolidate, merge or sell substantially all of our assets;

• enter into certain transactions with our affiliates;

• make loans, investments or advances;

• repay subordinated indebtedness;

• undergo a change in control;

• enter into certain transactions with our affiliates;

• engage in new lines of business; and

• enter into sale and leaseback transactions.

These restrictions on our ability to operate our business in our discretion could seriously harm our business by, among other things, limiting our ability to take advantage of financing, mergers and acquisitions and other corporate opportunities. The Credit Agreement is subject to various additional covenants, including a senior leverage ratio, a total leverage ratio, a fixed charge coverage ratio, and a minimum EBITDA level (as defined). Events beyond our control could affect our ability to meet these financial tests, and we cannot assure you that they will be met.

Our substantial indebtedness could adversely affect our cash flow and prevent us from fulfilling our obligations, including the 6.50% Notes.

As of December 31,2016, MDC had $936.4 million, net of debt issuance costs, of indebtedness. In addition, we expect to make additional drawings under the Credit Agreement from time to time. Our ability to pay principal and interest on our indebtedness is dependent on the generation of cash flow by our subsidiaries. Our subsidiaries’ business may not generate sufficient cash flow from operations to meet MDC’s debt service and other obligations. If we are unable to meet our expenses and debt service obligations, we may need to obtain additional debt, refinance all or a portion of our indebtedness on or before maturity, sell assets or raise equity. We may not be able to obtain additional debt, refinance any of our indebtedness, sell assets or raise equity on commercially reasonable terms or at all, which could cause us to default on our obligations and impair our liquidity. Our inability to generate sufficient cash flow to satisfy our debt obligations, to obtain additional debt or to refinance our obligations on commercially reasonable terms would have a material adverse effect on our business, financial condition and results of operations.

If we cannot make scheduled payments on our debt, we will be in default and, as a result, our debt holders could declare all outstanding principal and interest to be due and payable; the lenders under the Credit Agreement could terminate their commitments to loan us money and foreclose against the assets securing our borrowings; and we could be forced into bankruptcy or liquidation. Our level of indebtedness could have important consequences. For example it could:

• make it more difficult for us to satisfy our obligations with respect to the 6.50% Notes;

• make it difficult for us to meet our obligations with respect to our contingent deferred acquisition payments;

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• limit our ability to increase our ownership stake in our Partner Firms;

• increase our vulnerability to general adverse economic and industry conditions;

• require us to dedicate a substantial portion of our cash flow from operations to payments on our indebtedness, thereby reducing the availability of our cash flow to fund working capital and other activities;

• limit our flexibility in planning for, or reacting to, changes in our business and the advertising industry, which may place us at a competitive disadvantage compared to our competitors that have less debt; and

• limit, particularly in concert with the financial and other restrictive covenants in our indebtedness, our ability to borrow additional funds or take other actions.

Despite our current debt levels, we may be able to incur substantially more indebtedness, which could further increase the risks associated with our leverage.

We may incur substantial additional indebtedness in the future. The terms of our Credit Agreement and the indenture governing the 6.50% Notes permit us and our subsidiaries to incur additional indebtedness subject to certain limitations. If we or our subsidiaries incur additional indebtedness, the related risks that we face could increase.

We are a holding company dependent on our subsidiaries for our ability to service our debt and pay dividends.

MDC is a holding company with no operations of our own. Consequently, our ability to service our debt and to pay cash dividends on our common stock is dependent upon the earnings from the businesses conducted by our subsidiaries. Our subsidiaries are separate and distinct legal entities and have no obligation to provide us with funds for our payment obligations, whether by dividends, distributions, loans or other payments. Although our operating subsidiaries have generally agreed to allow us to consolidate and “sweep” cash, subject to the timing of payments due to noncontrolling interest holders, any distribution of earnings to us from our subsidiaries is contingent upon the subsidiaries’ earnings and various other business considerations. Also, our right to receive any assets of any of our subsidiaries upon their liquidation or reorganization, and therefore the right of the holders of common stock to participate in those assets, will be structurally subordinated to the claims of that subsidiary’s creditors. In addition, even if we were a creditor of any of our subsidiaries, our rights as a creditor would be subordinate to any security interest in the assets of our subsidiaries and any indebtedness of our subsidiaries senior to that held by us.

Item 1B. Unresolved Staff Comments

The Company received comment letters from the Division of Corporation Finance of the Securities and Exchange Commission (the “SEC”) dated May 18, 2016, August 9, 2016, October 5, 2016, December 16, 2016, February 28, 2017 and June 14, 2017, regarding its Annual Reports on Form 10-K for the fiscal years ended December 31, 2015 and December 31, 2016. The Company has filed detailed responses to each of these letters with the SEC, and we have incorporated into our subsequent periodic filings with the SEC additional disclosures that we believe are responsive to the SEC’s comments. In the Company’s Current Report on Form 8-K filed on August 7, 2017, the Company disclosed that certain SEC comments remained unresolved as of August 7, 2017, specifically relating to the Company’s aggregation of reportable segments in accordance with Financial Accounting Standards Board Accounting Standards Codification Topic 280-10.

The Company subsequently disclosed in its Quarterly Report on Form 10-Q for the period ended June 30, 2017, its proposed resolution of the appropriate aggregation of reporting segments. In addition, this Amendment No. 1 on Form 10-K/A includes amended disclosure relating to the recasting of prior segment disclosures into four (4) new reportable segments. However, certain SEC comments remain unresolved as of the date of this filing relating to the Company's aggregation of reportable segments and any related disclosure items. The recasting of prior period segment information does not affect our consolidated financial condition or results of operations, balance sheets, cash flows or goodwill for any period. In addition, there was no impact to management's opinion as to the effectiveness of internal controls.

Item 2. Properties

See the notes to the Company’s consolidated financial statements included in this Annual Report for a discussion of the Company’s lease commitments and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” for the impact of occupancy costs on the Company’s operating expenses.

The Company maintains office space in many cities in the United States, Canada, Europe, Asia and South America. This space is primarily used for office and administrative purposes by the Company’s employees in performing professional services. This office space is in suitable and well-maintained condition for MDC’s current operations. All of the Company’s materially important office space is leased from third parties with varying expiration dates. Certain of these leases are subject to rent reviews or contain various escalation clauses and certain of our leases require our payment of various operating expenses, which may also be subject to escalation. In addition, leases related to the Company’s non-U.S. businesses are denominated in currencies other than U.S. dollars and are therefore subject to changes in foreign exchange rates.

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Item 3. Legal Proceedings

Final Settlement of SEC Investigation

MDC Partners remains committed to the highest standards of corporate governance and transparency in its reporting practices. In April 2015, the Company announced it was actively cooperating in connection with an SEC investigation of the Company. On January 18, 2017, the Company announced that it reached a final settlement agreement with the Philadelphia Regional Office of the SEC, and that the SEC entered an administrative Order concluding its investigation of the Company.

Under the Order, without admitting or denying liability, the Company agreed that it will not in the future violate Section 17(a)(2) of the Securities Act of 1933 and Sections 13(a), 13(b) and 14(a) of the Securities Exchange Act of 1934 and related rules requiring that periodic filings be accurate; that accurate books and records and a system of internal accounting controls be maintained; and that solicitations of proxies comply with the securities laws. In addition, the Company agreed to comply with all requirements under Regulation G relating to the disclosure and reconciliation of non-GAAP financial measures. Pursuant to the Order, and based upon the Company’s full cooperation with the investigation, the SEC imposed a civil penalty of $1.5 million on the Company to resolve all potential claims against the Company relating to these matters. There will be no restatement of any of the Company’s previously-filed financial statements.

Class Action Litigation

On July 31, 2015, North Collier Fire Control and Rescue District Firefighter Pension Plan (“North Collier”) filed a putative class action suit in the Southern District of New York, naming as defendants MDC, CFO David Doft, former CEO Miles Nadal, and former CAO Mike Sabatino. On December 11, 2015, North Collier and co-lead plaintiff Plymouth County Retirement Association filed an amended complaint, adding two additional defendants, Mitchell Gendel and Michael Kirby, a former member of MDC’s Board of Directors. The plaintiff alleges in the amended complaint violations of § 10(b), Rule 10b-5, and § 20 of the Securities Exchange Act of 1934, based on allegedly materially false and misleading statements in the Company’s SEC filings and other public statements regarding executive compensation, goodwill accounting, and the Company’s internal controls. By order granted on September 30, 2016, the U.S. District Court presiding over the case granted the Company’s motion to dismiss the plaintiffs’ amended complaint in its entirety with prejudice. On November 2, 2016, the lead plaintiffs filed a notice to appeal the U.S. District Court's ruling to the U.S. Court of Appeals for the Second Circuit. On February 21, 2017, the plantiffs voluntarily dismissed their appeal.

On August 7, 2015, Roberto Paniccia issued a Statement of Claim in the Ontario Superior Court of Justice in the City of Brantford, Ontario seeking to certify a class action suit naming the following as defendants: MDC, former CEO Miles S. Nadal, former CAO Michael C. Sabatino, CFO David Doft and BDO U.S.A. LLP. The Plaintiff alleges violations of section 138.1 of the Ontario Securities Act (and equivalent legislation in other Canadian provinces and territories) as well as common law misrepresentation based on allegedly materially false and misleading statements in the Company’s public statements, as well as omitting to disclose material facts with respect to the SEC investigation. The Company intends to continue to vigorously defend this suit. A case management judge has now been appointed but a date for an initial case conference has not yet been set.

Antitrust Subpoena

One of the Company’s subsidiaries received a subpoena from the U.S. Department of Justice Antitrust Division concerning the Division’s ongoing investigation of production practices in the advertising industry. The Company and its subsidiary are fully cooperating with this confidential investigation.

Item 4. Mine Safety Disclosures

Not applicable.

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PART II

Item 5. Market for Registrant’s Common Equity Related Stockholder Matters and Issuer Purchases of Equity Securities

Market Information and Holders of Class A Subordinate Voting Shares

The principal market on which the Company’s Class A subordinate voting shares are traded is the NASDAQ National Market (“NASDAQ”) (symbol: “MDCA”). As of February 21, 2017, the approximate number of registered holders of our Class A subordinate voting shares, including those whose shares are held in nominee name, was 800. Quarterly high and low sales prices per share of the Company’s Class A subordinate voting shares, as reported on NASDAQ, for each quarter in the years ended December 31,2016 and 2015, were as follows:

NASDAQ

Quarter Ended	High	Low
	($ per Share)
March 31, 2015	28.65	21.20
June 30, 2015	28.64	18.00
September 30, 2015	20.99	16.15
December 31, 2015	22.55	18.25
March 31, 2016	23.85	16.32
June 30, 2016	23.90	15.94
September 30, 2016	18.64	10.42
December 31, 2016	11.10	2.75

As of February 17, 2017, the last reported sale price of the Class A subordinate voting shares was $9.00 on NASDAQ. Effective November 11, 2015, the Company voluntarily delisted its shares from the Toronto Stock Exchange (“TSX”). The Company determined that the relatively low trading volume of its shares on the TSX did not justify the financial and administrative costs associated with a dual listing.

Dividend Practice

On November 3, 2016, the Company announced that it was suspending its quarterly dividend indefinitely.

In 2016, MDC’s board of directors declared the following dividends: a $0.21 per share quarterly dividend to all shareholders of record as of the close of business on March 4, 2016; a $0.21 per share quarterly dividend to all shareholders of record as of the close of business on May 24, 2016; a $0.21 per share quarterly dividend to all shareholders of record as of the close of business on August 10, 2016.

In 2015, MDC’s board of directors declared the following dividends: a $0.21 per share quarterly dividend to all shareholders of record as of the close of business on March 5, 2015; a $0.21 per share quarterly dividend to all shareholders of record as of the close of business on May 8, 2015; a $0.21 per share quarterly dividend to all shareholders of record as of the close of business on August 18, 2015; and a $0.21 per share quarterly dividend to all shareholders of record as of the close of business on November 11, 2015.

In 2014, MDC’s board of directors declared the following dividends: a $0.18 per share quarterly dividend to all shareholders of record as of the close of business on March 4, 2014; a $0.18 per share quarterly dividend to all shareholders of record as of the close of business on May 5, 2014; a $0.19 per share quarterly dividend to all shareholders of record as of the close of business on August 5, 2014; and a $0.19 per share quarterly dividend to all shareholders of record as of the close of business on November 10, 2014.

The payment of any future dividends will be at the discretion of MDC’s board of directors and will depend upon limitations contained in our Credit Agreement and the indenture governing the 6.50% Notes, future earnings, capital requirements, our general financial condition and general business conditions.

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Securities Authorized for Issuance Under Equity Compensation Plans

The following table sets forth information regarding securities issued under our equity compensation plans as of December 31,2016:

	Number of Securities to Be Issued Upon Exercise of Outstanding Options, Warrants and Rights	Weighted Average Exercise Price of Outstanding Options, Warrants and Rights		Number of Securities Remaining Available for Future Issuance [Excluding Column (a)]
	(a)	(b)		(c)
Equity compensation plans approved by stockholders	37,500	$	5.83	1,934,861
Equity compensation plans not approved by stockholders	—	—		—
Total	37,500	5.83		1,934,861

On May 26, 2005, the Company’s shareholders approved the 2005 Stock Incentive Plan, which provides for the issuance of 3.0 million Class A shares. On June 2, 2009 and June 1, 2007, the Company’s shareholders approved amendments to the 2005 Stock Incentive Plan, which increased the number of shares available for issuance to 6.75 million Class A shares. In addition, the plan was amended to allow shares under this plan to be used to satisfy share obligations under the Stock Appreciation Rights Plan (the “SARS Plan”). On May 30, 2008, the Company’s shareholders approved the 2008 Key Partner Incentive Plan, which provides for the issuance of 900,000 Class A shares. On June 1, 2011, the Company’s shareholders approved the 2011 Stock Incentive Plan, which provides for the issuance of up to 3.0 million Class A shares. In June 2013, the Company’s shareholders approved an amendment to the SARS Plan to permit the Company to issue shares authorized under the SARS Plan to satisfy the grant and vesting of awards under the 2011 Stock Incentive Plan. In June 2016, the Company's shareholders approved the 2016 Stock Incentive Plan, which provides for the issuance of up to 1,500,000 Class A shares.

See also Note 12 of the Notes to the Consolidated Financial Statements included herein.

Recent Sales of Unregistered Securities; Use of Proceeds from Registered Securities

None.

Purchase of Equity Securities by the Issuer and Affiliated Purchasers

For the twelve months ended December 31, 2016, the Company made no open market purchases of its Class A shares or its Class B shares. Pursuant to its Credit Agreement and the indenture governing the 6.50% Notes, the Company is currently limited from repurchasing its shares in the open market.

During 2016, the Company’s employees surrendered 205,876 Class A shares valued at approximately $3.4 million in connection with the required tax withholding resulting from the vesting of restricted stock. The Company paid these withholding taxes on behalf of the related employees. These Class A shares were subsequently retired and no longer remain outstanding as of December 31, 2016.

Transfer Agent and Registrar for Common Stock

The transfer agent and registrar for the Company’s common stock is Canadian Stock Transfer Trust Company (f/k/a CIBC Mellon Trust Company). Canadian Stock Transfer Trust Company operates a telephone information inquiry line that can be reached by dialing toll-free 1-800-387-0825 or 416-643-5500.

Correspondence may be addressed to:

MDC Partners Inc.

C/o Canadian Stock Transfer Trust Company

P.O. Box 4202, Postal Station A

Toronto, Ontario M5W 0E4

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Item 6. Selected Financial Data

The following selected financial data should be read in connection with Item 7 — “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated financial statements and related notes that are included in this Amendment No. 1 on Form 10-K/A.

	Years Ended December 31,
	2016			2015			2014		2013			2012
	(Dollars in Thousands, Except per Share Data)
Operating Data
Revenues	$	1,385,785		$	1,326,256		$	1,223,512	$	1,062,478		$	972,973
Operating income (loss)	$	48,431		$	72,110		$	87,749	$	(34,594	)	$	(17,969	)
Income (loss) from continuing operations	$	(40,621	)	$	(20,119	)	$	6,739	$	(134,198	)	$	(82,250	)
Stock-based compensation included in income (loss) from continuing operations	$	21,003		$	17,796		$	17,696	$	100,405		$	32,197
Loss per Share
Basic
Continuing operations attributable to MDC Partners Inc. common shareholders	$	(0.89	)	$	(0.58	)	$	—	$	(2.99	)	$	(1.93	)
Diluted
Continuing operations attributable to MDC Partners Inc. common shareholders	$	(0.89	)	$	(0.58	)	$	—	$	(2.99	)	$	(1.93	)
Cash dividends declared per share	$	0.63		$	0.84		$	0.74	$	0.46		$	0.38
Financial Position Data
Total assets	$	1,577,378		$	1,577,625		$	1,633,751	$	1,408,711		$	1,335,422
Total debt	$	936,436		$	728,883		$	727,988	$	648,612		$	422,180
Redeemable noncontrolling interests	$	60,180		$	69,471		$	194,951	$	148,534		$	117,953
Deferred acquisition consideration	$	229,564		$	347,104		$	205,368	$	153,913		$	196,446
Fixed charge coverage ratio	N/A			N/A			1.23		N/A			N/A
Fixed charge deficiency	$	49,593		$	16,764		N/A		$	134,754		$	63,240

A number of factors that should be considered when comparing the annual results shown above are as follows:

Year Ended December 31, 2016

During 2016, the Company completed one acquisition and a number of transactions with majority owned subsidiaries. Please see Note 4 of the Notes to the Consolidated Financial Statements included herein for a summary of these acquisitions.

On March 23, 2016, the Company issued and sold $900 million aggregate principal amount of the 6.50% Notes. The 6.50% Notes are guaranteed on a senior unsecured basis by all of MDC’s existing and future restricted subsidiaries that guarantee, or are co-borrowers under or grant liens to secure the Credit Agreement. The 6.50% Notes bear interest at a rate of 6.50% per annum, accruing from March 23, 2016. Interest is payable semiannually in arrears on May 1 and November 1 of each year, beginning November 1, 2016. The 6.50% Notes mature on May 1, 2024, unless earlier redeemed or repurchased. The 6.50% Notes were sold in a private placement in reliance on exceptions from registration under the the Securities Act of 1933. The Company received net proceeds from the offering of the 6.50% Notes equal to approximately $880 million. The Company used the net proceeds to redeem all of its existing 6.75% Notes, together with accrued interest, related premiums, fees and expenses and recorded a charge for the loss on redemption of such notes of $33.3 million, including write offs of unamortized original issue premium and debt issuance costs. Remaining proceeds were used for general corporate purposes, including funding of deferred acquisition consideration.

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Year Ended December 31, 2015

During 2015, the Company completed two acquisitions and a number of transactions with majority owned subsidiaries. Please see Note 4 of the Notes to the Consolidated Financial Statements included herein for a summary of these acquisitions.

In May 2015, the Company completed its previously announced sale of the net assets of Accent. For further information, please see Note 10 of the Notes to the Consolidated Financial Statements included herein.

Year Ended December 31, 2014

During 2014, the Company completed a number of acquisitions and a number of transactions with majority owned subsidiaries. Please see Note 4 of the Notes to the Consolidated Financial Statements included herein for a summary of these acquisitions.

On April 2, 2014, the Company issued an additional $75 million aggregate principal amount of its 6.75% Notes. The additional notes were issued under the indenture governing the 6.75% Notes and treated as a single series with the original 6.75% Notes. We received net proceeds from the offering of approximately $77.5 million, and we used the proceeds for general corporate purposes, including the funding of deferred acquisition consideration, working capital, acquisitions, and the repayment of the amount outstanding under our senior secured revolving credit agreement.

During the quarter ended December 31, 2014, the Company made the decision to strategically sell the net assets of Accent. All periods reflect these discontinued operations. For further information, please see Note 10 of the Notes to the Consolidated Financial Statements included herein.

Year Ended December 31, 2013

During 2013, the Company completed an acquisition and a number of transactions with majority owned subsidiaries. Please see Note 4 of the Notes to the Consolidated Financial Statements included herein for a summary of these acquisitions.

On March 20, 2013, the Company issued and sold $550 million aggregate principal amount of the 6.75% Notes. The 6.75% Notes are guaranteed on a senior unsecured basis by all of MDC’s existing and future restricted subsidiaries that guarantee, or are co-borrowers under or grant liens to secure the Credit Agreement. The 6.75% Notes bear interest at a rate of 6.75% per annum, accruing from March 20, 2013. Interest is payable semiannually in arrears in cash on May 1 and November 1 of each year, beginning on October 1, 2013. The 6.75% Notes will mature on April 1, 2020, unless earlier redeemed or repurchased. The 6.75% Notes were sold in a private placement in reliance on exceptions from registration under the Securities Act of 1933, as amended (the “Securities Act”). The Company received net proceeds from the offering of the 6.75% Notes equal to approximately $537.6 million. The Company used the net proceeds to redeem all of its existing 11% Notes, together with accrued interest, related premiums, fees and expenses and recorded a charge for loss on redemption of notes of $55.6 million, including write offs of unamortized original issue premium and debt issuance costs. Remaining proceeds were used for general corporate purposes. In addition, the Company entered into an amended and restated $225 million senior secured revolving credit agreement due 2018.

In November 2013, stock-based compensation included a charge of $78.0 million relating to the cash settlement of the outstanding Stock Appreciation Rights (“SAR’s”).

On November 15, 2013, the Company issued an additional $110 million aggregate principal amount of the 6.75% Notes. The additional notes were issued under the indenture governing the 6.75% Notes and treated as a single series with the original 6.75% Notes.

During 2013, the Company discontinued two subsidiaries and an operating division. All periods reflect these discontinued operations. For further information, please see Note 10 of the Notes to the Consolidated Financial Statements included herein.

Year Ended December 31, 2012

During 2012, the Company completed a number of acquisitions.

On December 10, 2012, the Company and its wholly-owned subsidiaries, as guarantors, issued and sold an additional $80 million aggregate principal amount of 11% Notes due 2016 (the “11% Notes”). The additional notes were issued under the indenture governing the 11% Notes and treated as a single series with the original 11% Notes. The additional notes were sold in a private placement in reliance on exceptions from registration under the Securities Act. The Company received net proceeds before expenses of $83.2 million, which included an original issue premium of $4.8 million, and underwriter fees of $1.6 million. The Company used the net proceeds of the offering to repay the outstanding balance under the Company’s revolving credit agreement described elsewhere herein, and for general corporate purposes.

During 2012, the Company discontinued a subsidiary and certain operating divisions. All periods reflect these discontinued operations. For further information, please see Note 10 of the Notes to the Consolidated Financial Statements included herein.

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Unless otherwise indicated, references to a “fiscal year” means the Company’s year commencing on January 1 of that year and ending December 31 of that year (e.g., fiscal year 2016 means the period beginning January 1, 2016, and ending December 31, 2016).

The Company reports its financial results in accordance with generally accepted accounting principles (“GAAP”) of the United States of America (“U.S. GAAP”). In addition, the Company has included certain non-U.S. GAAP financial measures and ratios, which it believes provide useful supplemental information to both management and readers of this report in measuring the financial performance and financial condition of the Company. These measures do not have a standardized meaning prescribed by U.S. GAAP and should not be construed as an alternative to other titled measures determined in accordance with U.S. GAAP.

Two such non-U.S. GAAP measures are “organic revenue growth” or “organic revenue decline” that refer to the positive or negative results, respectively, of subtracting both the foreign exchange and acquisition (disposition) components from total revenue growth. The acquisition (disposition) component is calculated by aggregating the prior period revenue for any acquired businesses, less the prior period revenue of any businesses that were disposed of in the current period. The organic revenue growth (decline) component reflects the constant currency impact of (a) the change in revenue of the Partner Firms which the Company has held throughout each of the comparable periods presented and (b) for acquisitions during the current year, the revenue effect from such acquisition as if the acquisition had been owned during the equivalent period in the prior year and (c) for acquisitions during the previous year, the revenue effect from such acquisitions as if they had been owned during that entire year or same period as the current reportable period, taking into account their respective pre-acquisition revenues for the applicable periods and (d) for dispositions, the revenue effect from such disposition as if they had been disposed of during the equivalent period in the prior year. The Company believes that isolating the impact of acquisition activity and foreign currency impacts is an important and informative component to understand the overall change in the Company’s consolidated revenue. The change in the consolidated revenue that remains after these adjustments illustrates the underlying financial performance of the Company’s businesses. Specifically, it represents the impact of the Company’s management oversight, investments and resources dedicated to supporting the businesses’ growth strategy and operations. In addition, it reflects the network benefit of inclusion in the broader portfolio of firms that includes, but is not limited to, cross-selling and sharing of best practices. This approach isolates changes in performance of the business that take place under the Company’s stewardship, whether favorable or unfavorable, and thereby reflects the potential benefits and risks associated with owning and managing a talent-driven services business.

Accordingly, during the first twelve months of ownership by the Company, the organic growth measure may credit the Company with growth from an acquired business that is dependent on work performed prior to the acquisition date, and may include the impact of prior work in progress, existing contracts and backlog of the acquired businesses. It is the presumption of the Company that positive developments that may have taken place at an acquired business during the period preceding the acquisition will continue to result in value creation in the post-acquisition period.

While the Company believes that the methodology used in the calculation of organic revenue change is entirely consistent with our closest U.S. competitors, the calculations may not be comparable to similarly titled measures presented by other publicly traded companies in other industries. Additional information regarding the Company’s acquisition activity as it relates to potential revenue growth is provided in Item 7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations” under “Certain Factors Affecting our Business.”

Amounts reported in millions herein are computed based on the amounts in thousands. As a result, the sum of the components, and related calculations, reported in millions may not equal the total amounts due to rounding.

Executive Summary

MDC conducts its business through its network of Partner Firms, the “Advertising and Communications Group”, who provide a comprehensive array of marketing and communications services for clients both domestically and globally. The Company’s objective is to create shareholder value by building, growing and acquiring market-leading Partner Firms that deliver innovative, value-added marketing, activation, communications and strategic consulting to their clients. Management believes that shareholder value is maximized with an operating philosophy of “Perpetual Partnership” with proven committed industry leaders in marketing communications.

MDC manages its business by monitoring several financial and non-financial performance indicators. The key indicators that we focus on are revenues, operating expenses and capital expenditures. Revenue growth is analyzed by reviewing a mix of measurements, including (i) growth by major geographic location, (ii) growth by client industry vertical, (iii) growth from existing clients and the addition of new clients, (iv) growth by primary discipline (v) growth from currency changes, and (vi) growth from acquisitions. In addition to monitoring the foregoing financial indicators, the Company assesses and monitors several non-financial performance indicators relating to the business performance of our Partner Firms. These indicators may include a Partner Firm’s recent new client win/loss record; the depth and scope of a pipeline of potential new client account activity; the overall quality of

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the services provided to clients; and the relative strength of the Company’s next generation team that is in place as part of a potential succession plan to succeed the current senior executive team.

As discussed in Note 14 of the Notes to Consolidated Financial Statements included herein based in part on feedback from the SEC, the Company performed a comprehensive review of its reportable segments to determine if aggregation of its operating segments is consistent with the principles detailed in Financial Accounting Standards Board Accounting Standards Codification Topic (“ASC”) 280. Based on the comprehensive review, the Company reassessed the aggregation of its operating segments and identified four new reportable segments. Each Partner Firm represents an operating segment. The Company aggregates Partner Firms that meet the aggregation criteria detailed in ASC 280 into one of the four reportable segments and combines and discloses those Partner Firms that do not meet the aggregation criteria in the All Other category. The following discussion provides additional detailed disclosure for each of the Company’s four reportable segments, plus the All Other category, within the Advertising and Communications Group.

The four reportable segments are as follows:

Global Integrated Agencies - This segment is comprised of the Company’s six global, integrated Partner Firms with broad marketing communication capabilities, including advertising, branding, digital, social media, design and production services, serving multinational clients around the world.

Domestic Creative Agencies - This segment is comprised of four Partner Firms that are national advertising agencies leveraging creative capabilities at their core.

Specialist Communications - This segment is comprised of seven Partner Firms that are each communications agencies with core service offerings in public relations and related communications services.

Media Services - This segment is comprised of a unique single operating segment with media buying and planning as its core competency.

The All Other category consists of the Company's remaining Partner Firms that provide a range of diverse marketing communication services, but are not eligible for aggregation with the reportable segments.

In addition, MDC reports its corporate office expenses incurred in connection with the strategic resources provided to the Partner Firms, as well as certain other centrally managed expenses that are not fully allocated to the Partner Firms as Corporate. Corporate provides client and business development support to the Partner Firms as well as certain strategic resources, including accounting, administrative, financial, real estate, human resource and legal functions. Additional expenses managed by the corporate office that are directly related to the Partner Firms are allocated to the appropriate reportable segment and the All Other category.

The Partner Firms earn revenue from agency arrangements in the form of retainer fees or commissions; from short-term project arrangements in the form of fixed fees or per diem fees for services; and from incentives or bonuses. Additional information about revenue recognition appears in Note 2 of the Notes to the Consolidated Financial Statements included herein.

MDC classifies operating expenses in two distinct cost categories: cost of services sold, and office and general expenses. Cost of services sold is primarily comprised of employee compensation related costs and direct costs related primarily to providing services. Office and general expenses are primarily comprised of rent and occupancy costs and administrative service costs including related employee compensation costs. Also included in office and general expenses are the changes of the estimated value of our contingent purchase price obligations, including the accretion of present value and acquisition related costs. Depreciation and amortization are also included in operating expenses.

Because we are a service business, we monitor these costs on a percentage of revenue basis. Cost of services sold tend to fluctuate in conjunction with changes in revenues, whereas office and general expenses and depreciation and amortization, which are not directly related to servicing clients, tend to decrease as a percentage of revenue as revenues increase as a significant portion of these expenses are relatively fixed in nature.

We measure capital expenditures as either maintenance or investment related. Maintenance capital expenditures are primarily composed of general upkeep of our office facilities and equipment that are required to continue to operate our businesses. Investment capital expenditures include expansion costs, the build out of new capabilities, technology, and other growth initiatives not related to the day to day upkeep of the existing operations. Growth capital expenditures are measured and approved based on the expected return of the invested capital.

Certain Factors Affecting Our Business

Overall Factors Affecting our Business and Results of Operations.  The most significant factors include national, regional and local economic conditions, our clients’ profitability, mergers and acquisitions of our clients, changes in top management of our clients and our ability to retain and attract key employees. New business wins and client losses occur due to a variety of factors. The two most significant factors are (i) our clients’ desire to change marketing communication firms, and (ii) the creative product

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that our Partner Firms offer. A client may choose to change marketing communication firms for a number of reasons, such as a change in top management and the new management wants to retain an agency that it may have previously worked with. In addition, if the client is merged or acquired by another company, the marketing communication firm is often changed. Further, global clients are trending to consolidate the use of numerous marketing communication firms to just one or two. Another factor in a client changing firms is the agency’s campaign or work product is not providing results and they feel a change is in order to generate additional revenues.

Clients will generally reduce or increase their spending or outsourcing needs based on their current business trends and profitability.

Acquisitions and Dispositions. The Company’s strategy includes acquiring ownership stakes in well-managed businesses with world class expertise and strong reputations in the industry. Through the Strategic Resources Group, the Company provides post-acquisition support to Partner Firms in order to help accelerate growth, including in areas such as business and client development (including cross-selling), corporate communications, corporate development, talent recruitment and training, procurement, legal services, human resources, financial management and reporting, and real estate utilization, among other areas. As most of the Company’s acquisitions remain as stand-alone entities post acquisition, integration is typically implemented promptly, and new Partner Firms can begin to tap into the full range of MDC’s resources immediately. Often the acquired businesses may begin to tap into certain MDC resources in the pre-acquisition period, such as talent recruitment or real estate. The Company engaged in a number of acquisition and disposition transactions during the 2009 to 2016 period, which affected revenues, expenses, operating income and net income. Additional information regarding acquisitions is provided in Note 4 “Acquisitions” and information on dispositions is provided in Note 10 “Discontinued Operations” of the Notes to the Consolidated Financial Statements.

Foreign Exchange Fluctuation.  Our financial results and competitive position are affected by fluctuations in the exchange rate between the U.S. dollar and non-U.S. dollar, primarily the Canadian dollar. See also “Item 7A - Quantitative and Qualitative Disclosures About Market Risk - Foreign Exchange.”

Seasonality.  Historically, with some exceptions, we generate the highest quarterly revenues during the fourth quarter in each year. The fourth quarter has historically been the period in the year in which the highest volumes of media placements and retail related consumer marketing occur.

Fourth Quarter Results.Revenues were $390.4 million for the fourth quarter of 2016, representing an increase of $31.4 million or 8.8%, compared to revenue of $359.0 million in fourth quarter of 2015. Revenue from acquisitions for the fourth quarter of 2016 was $24.7 million or 6.9%, inclusive of a $3.3 million contribution to organic revenue growth. A negative impact $0.5 million is also included to reflect the effect of a disposition. Excluding the effect of the acquisitions and disposition, revenue growth was $10.3 million or 2.9%, partially offset by a foreign exchange impact of $3.0 million or 0.8%. The increase in operating profits was attributable to a decrease in deferred acquisition consideration expense of $51.1 million due to certain Partner Firms under-performance in comparison to the Company’s prior expectations, partially offset by a goodwill impairment expense increase of $18.9 million pertaining to a strategic communication unit. Income from continuing operations for the fourth quarter of 2016 was $11.2 million, compared to a loss from continuing operations of $24.0 million in 2015. Other income, net decreased by $6.0 million or 88.9% from $6.8 million in 2015, to $0.8 million in 2016. Of this amount, $6.5 million was due to income from the sale of certain investments in 2015. Unrealized losses increased $0.6 million or 5.8% due to foreign currency fluctuations. Interest expense increased $1.6 million or 10.9% from $14.8 million in 2015, to $16.4 million in 2016. Income tax benefit increased $16.3 million from an expense of $5.8 million in 2015, compared to a benefit of $10.6 million in 2016.

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Results of Operations for the Years Ended December 31, 2016, 2015 and 2014:

	Years Ended December 31,
	2016			2015			2014
Revenue:
Global Integrated Agencies	$	696,410		$	652,987		$	600,150
Domestic Creative Agencies	85,953			91,658			83,196
Specialist Communications	170,285			153,920			124,938
Media Services	131,498			132,419			120,852
All Other	301,639			295,272			294,376
Corporate	—			—			—
Total	$	1,385,785		$	1,326,256		$	1,223,512
Segment operating income (loss):
Global Integrated Agencies	$	58,505		$	66,161		$	67,290
Domestic Creative Agencies	16,583			17,535			14,266
Specialist Communications	1,939			18,047			16,242
Media Services	6,154			20,116			29,706
All Other	9,368			15,423			28,322
Corporate	(44,118		)	(65,172		)	(68,077		)
Total	$	48,431		$	72,110		$	87,749
Other Income (Expense):
Other income, net	$	414		$	7,238		$	689
Foreign exchange loss	(213		)	(39,328		)	(18,482		)
Interest expense and finance charges, net	(98,348		)	(57,436		)	(54,847		)
Income (loss) continuing operations before income taxes and equity in earnings of non-consolidated affiliates	(49,716		)	(17,416		)	15,109
Income tax expense (benefit)	(9,404		)	3,761			9,776
Income (loss) from continuing operations before equity in earnings of non-consolidated affiliates	(40,312		)	(21,177		)	5,333
Equity in earnings (loss) of non-consolidated affiliates	(309		)	1,058			1,406
Income (loss) from continuing operations	(40,621		)	(20,119		)	6,739
Loss from discontinued operations attributable to MDC Partners Inc., net of taxes	—			(6,281		)	(21,260		)
Net loss	(40,621		)	(26,400		)	(14,521		)
Net income attributable to the noncontrolling interest	(5,218		)	(9,054		)	(6,890		)
Net loss attributable to MDC Partners Inc.	$	(45,839	)	$	(35,454	)	$	(21,411	)

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	Years Ended December 31,
	2016		2015		2014
Depreciation and amortization:
Global Integrated Agencies	$	21,447	$	20,599	$	17,410
Domestic Creative Agencies	1,653		1,855		1,809
Specialist Communications	6,637		11,201		8,272
Media Services	5,718		4,660		6,113
All Other	9,406		12,134		11,783
Corporate	1,585		1,774		1,785
Total	46,446		52,223		47,172
Stock-based compensation:
Global Integrated Agencies	$	12,141	$	6,981	$	5,043
Domestic Creative Agencies	634		644		394
Specialist Communications	3,629		1,510		2,050
Media Services	301		471		918
All Other	1,773		5,450		3,628
Corporate	2,525		2,740		5,663
Total	$	21,003	$	17,796	$	17,696
Capital expenditures:
Global Integrated Agencies	$	16,439	$	17,043	$	19,669
Domestic Creative Agencies	1,055		1,321		818
Specialist Communications	2,741		1,311		632
Media Services	5,110		825		475
All Other	4,054		2,704		3,485
Corporate	33		371		1,337
Total	$	29,432	$	23,575	$	26,416

Year Ended December 31, 2016 Compared to Year Ended December 31, 2015

Revenue was $1.39 billionfor the year ended December 31,2016, representing an increase of $59.5 million, or 4.5%, compared to revenue of $1.33 billionfor the year ended December 31,2015. Revenue from acquisitions for 2016 was $51.1 million or 3.8%, inclusive of a $10.1 million contribution to organic revenue growth. Additionally, a negative impact of $0.5 million is included to reflect a disposition. Excluding the effect of the acquisitions and disposition, revenue growth was $20.0 million or 1.5%, partially offset by an adverse foreign exchange impact of $11.0 million or 0.8%.

Operating profit for the year ended 2016 was $48.4 million, compared to $72.1 million in 2015. Operating profit decreased by $44.7 million in the Advertising and Communications Group, while Corporate operating expenses decreased by $21.1 million.

Loss from continuing operations was $40.6 million in 2016, compared to a loss of $20.1 million in 2015.The increase of $20.5 million was primarily attributable to (1) a decrease in operating profit of $23.7 million, primarily due to goodwill impairment expense of $48.5 million, (2) an increase in net interest expense of $40.9 million, partially offset by (3) a decrease in foreign exchange loss of $39.1 million, (4) a decrease in other income, net, of $6.8 million, and (5) an increase in the income tax benefit of $13.2 million.

Advertising and Communications Group

The following discussion provides additional detailed disclosure for the Company's network of Partner Firms, the Advertising and Communications Group. The Adverting and Communications Group includes the Company’s four (4) reportable segments plus its "All Other” category.

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Revenue in the Advertising and Communications Group was $1.39 billionfor the year ended December 31,2016, representing an increase of $59.5 million, or 4.5%, compared to revenue of $1.33 billionfor the year ended December 31,2015. Revenue from acquisitions for 2016 was $51.1 million or 3.8%, inclusive of a $10.1 million contribution to organic revenue growth. Additionally, a negative impact of $0.5 million is included to reflect a disposition. Excluding the effect of the acquisitions and dispositions, revenue growth was $20.0 million or 1.5%, partially offset by an adverse foreign exchange impact of $11.0 million or 0.8%, which was attributable to new client wins partially offset by client losses and reductions in spending by some clients. There was mixed performance by client sector, with strength in communications, food & beverage and auto, offset by declines led by retail, technology, and financial services. The performance by disciplines was mixed with strength led by technology & data science, and public relations, partially offset by declines primarily in design firms. For the year ended December 31, 2016, revenue was negatively impacted by decreased billable pass-through costs incurred on client’s behalf from the Company acting as principal in experiential and other businesses.

Revenue growth in the Advertising and Communications Group was driven by the Company’s business outside of North America primarily consisting of revenue from acquisitions of $40.4 million or 3.1%, inclusive of a $6.2 million contribution to organic revenue growth. Revenue growth excluding acquisitions was $12.3 million or 0.9%, partially offset by an adverse foreign exchange impact of $6.9 million or 0.5%. The revenue growth in North America was comprised of revenue from acquisitions of $10.7 million or 0.8%, in addition to revenue growth of $8.0 million or 0.6% excluding acquisitions from the United States, offset by a minimal revenue decrease from Canada. United States saw modest growth due to client wins partially offset by client losses and reduction in client spending, as well as decrease in billable pass-through cost. The majority of the revenue growth outside of North America was attributable to the Company’s European and Asian operations.

The Company also utilizes a non-GAAP metric called organic revenue growth (decline), defined in Item 7. For the year ended December 31, 2016, organic revenue growth was $30.1 million or 2.3%, of which $20.0 million pertained to Partner Firms which the Company has held throughout each of the comparable periods presented, while the remaining $10.1 million was contributed by acquisitions. The increase in revenue was also a result of non-GAAP acquisition (disposition), net adjustments of $42.0 million or 3.2%, which was partially offset by an adverse foreign exchange impact of $12.5 million or 0.9%.

The components of the change in revenues in the Advertising and Communications Group for the year ended December 31,2016 were as follows:

			2016 Non-GAAP Activity											Change
Advertising and Communications Group	2015 Revenue		Foreign Exchange			Non-GAAP Acquisitions (Dispositions), net			Organic Revenue Growth (Decline)			2016 Revenue		Foreign Exchange		Non-GAAP Acquisitions (Dispositions), net		Organic Revenue Growth (Decline)		Total Revenue
	(Dollars in Millions)
United States	$	1,085.1	$	—		$	6.8		$	11.9		$	1,103.7	—	%	0.6	%	1.1	%	1.7	%
Canada	129.0		(4.1		)	(0.5		)	(0.3		)	124.1		(3.2	)%	(0.4	)%	(0.2	)%	(3.8	)%
Other	112.2		(8.4		)	35.7			18.5			158.0		(7.5	)%	31.9	%	16.5	%	40.8	%
Total	$	1,326.3	$	(12.5	)	$	42.0		$	30.1		$	1,385.8	(0.9	)%	3.2	%	2.3	%	4.5	%

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The below is a reconciliation between the revenue in the Advertising and Communications Group from acquired businesses in the statement of operations to non-GAAP acquisitions (dispositions), net for the year ended December 31,2016:

	Global Integrated Agencies			Media Services			All Other			Total
	(Dollars in Millions)
Revenue from acquisitions (dispositions), net (1)	$	39.6		$	4.8		$	6.7		$	51.1
Foreign exchange impact	1.5			—			—			1.5
Contribution to organic revenue growth (decline) (2)	(5.9		)	(1.4		)	(2.8		)	(10.1		)
Prior year revenue from dispositions	—			—			(0.5		)	(0.5		)
Non-GAAP acquisitions (dispositions), net	$	35.1		$	3.5		$	3.4		$	42.0

(1) For the year ended December 31, 2016, revenue from acquisitions was comprised of $11.5 million from acquisitions completed in 2015 and $39.6 million from acquisitions completed in 2016.

(2) Contributions to organic revenue growth (decline) represents the change in revenue, measured on a constant currency basis, relative to the comparable pre-acquisition period for acquired businesses that is included in the Company’s organic revenue growth (decline) calculation.

The geographic mix in revenues in the Advertising and Communications Group for the years ended December 31,2016 and 2015 was as follows:

	2016		2015
United States	79.6	%	81.8	%
Canada	9.0	%	9.7	%
Other	11.4	%	8.5	%

Overall, organic revenue growth in the Advertising and Communications Group was driven by the Company's business outside of North America, with organic revenue growth of 16.5%, primarily attributable to new client wins and increased spend from existing clients as the Company extended its capabilities into new markets throughout Europe, Asia, and South America. For the year ended December 31, 2016, 11.4% of the Company's total revenue came from outside North America, up from 8.5%for the year ended December 31,2015. Additional revenue growth came from acquisitions of Partner Firms that helped expand the Company's capabilities in mobile development and digital media buying, as well as expand the Company's global footprint.

The adverse currency impact was primarily due to the weakening of the British Pound and the Canadian dollar against the U.S. dollar during the twelve months ended December 31,2016, as compared to the twelve months ended December 31,2015.

The change in expenses as a percentage of revenue in the Advertising and Communications Group for the years ended December 31,2016 and 2015 was as follows:

	2016				2015				Change
Advertising and Communications Group	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Millions)
Revenue	$	1,385.8			$	1,326.3			$	59.5		4.5	%
Operating expenses
Cost of services sold	936.1		67.6	%	879.7		66.3	%	56.4			6.4	%
Office and general expenses	263.7		19.0	%	258.8		19.5	%	4.9			1.9	%
Depreciation and amortization	44.9		3.2	%	50.4		3.8	%	(5.6		)	(11.1	)%
Goodwill impairment	48.5		3.5	%	—		—	%	48.5			NA
	$	1,293.2	93.3	%	$	1,189.0	89.6	%	$	104.3		8.8	%
Operating profit	$	92.5	6.7	%	$	137.3	10.4	%	$	(44.7	)	(32.6	)%

23

The change in the categories of expenses as a percentage of revenue in the Advertising and Communications Group for the years ended December 31,2016 and 2015 was as follows:

	2016				2015				Change
Advertising and Communications Group	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Millions)
Direct costs (1)	$	212.3	15.3	%	$	195.3	14.7	%	$	17.0		8.7	%
Staff costs (2)	781.9		56.4	%	732.4		55.2	%	49.5			6.8	%
Administrative costs	179.2		12.9	%	159.4		12.0	%	19.8			12.4	%
Deferred acquisition consideration	8.0		0.6	%	36.3		2.7	%	(28.4		)	(78.1	)%
Stock-based compensation	18.5		1.3	%	15.1		1.1	%	3.4			22.7	%
Depreciation and amortization	44.9		3.2	%	50.4		3.8	%	(5.6		)	(11.1	)%
Goodwill impairment	48.5		3.5	%	—		—	%	48.5			NA
Total operating expenses	$	1,293.2	93.3	%	$	1,189.0	89.6	%	$	104.3		8.8	%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

Operating profit in the Advertising and Communications Group in 2016 was $92.5 million, compared to $137.3 million in 2015, with operating margins declining 370 basis points from 10.4% in 2015 to 6.7% in 2016. The decrease in operating profit and margin was largely due to the goodwill impairment charge of $48.5 million and increases in staff costs as a percentage of revenue, partially offset by decreased deferred acquisition consideration expense.

Direct costs in the Advertising and Communications Group increased by $17.0 million, or 8.7% and as a percentage of revenue increased from 14.7% in 2015 to 15.3% in 2016. This increase was largely due to an acquisition during the year.

Staff costs in the Advertising and Communications Group increased by $49.5 million, or 6.8% and as a percentage of revenue increased from 55.2% in 2015 to 56.4% in 2016. The increase in staff costs was due to increased headcount driven by certain Partner Firms to support the growth of their businesses, as well as additional contributions from acquisitions. The increase in staff costs as a percentage of revenue was due to an increase in staffing levels in advance of revenue at certain Partner Firms, as well as slower reductions in staffing at other Partner Firms.

Administrative costs in the Advertising and Communications Group increased year over year and as a percentage of revenue primarily due to higher occupancy expenses and other general and administrative expenses. These increases were incurred to support the growth and expansion of certain Partner Firms, as well as some real estate consolidation initiatives.

Deferred acquisition consideration in the Advertising and Communications Group was expense of $8.0 million in 2016, compared to expense of $36.3 million in 2015. The decrease in deferred acquisition consideration expense was due to the aggregate under-performance of certain Partner Firms in 2016 relative to forecast expectations as compared to 2015. This decrease was partially offset by expenses pertaining to amendments to purchase agreements of previously acquired incremental ownership interests entered into during 2016, as well as increased estimated liability driven by the decrease in the Company's estimated future stock price, pertaining to an acquisition in which the Company used its equity as purchase consideration.

Stock-based compensation in the Advertising and Communications Group remained consistent at approximately 1% of revenue.

Depreciation and amortization expense in the Advertising and Communications Group decreased by $5.6 million primarily due to lower amortization from intangibles related to prior year acquisitions.

Goodwill impairment in the Advertising and Communications Group of $48.5 million was comprised of $27.9 million relating to an experiential reporting unit, a partial impairment of goodwill of $18.9 million relating to a strategic communications reporting unit, and a partial impairment of goodwill of $1.7 million relating to a non-material reporting unit. For more information see Note 8 of our consolidated financial statements.

24

Global Integrated Agencies

Revenue in the Global Integrated Agencies reportable segment was $696.4 millionfor the year ended December 31,2016, representing an increase of $43.4 million, or 6.6%, compared to revenue of $653.0 millionfor the year ended December 31,2015. The increase related to revenue growth from existing Partner Firms, excluding the effect of acquisitions, of $15.6 million, or 2.4%, as well as revenue from acquisitions of $35.1 million, or 5.4%. These increases were partially offset by an adverse foreign exchange impact of $7.3 million, or 1.1%.

The change in expenses as a percentage of revenue in the Global Integrated Agencies reportable segment for the years ended December 31,2016 and 2015 was as follows:

	2016				2015				Change
Global Integrated Agencies	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Millions)
Revenue	$	696.4			$	653.0			$	43.4		6.6	%
Operating expenses
Cost of services sold	472.1		67.8	%	431.3		66.0	%	40.9			9.5	%
Office and general expenses	144.3		20.7	%	135.0		20.7	%	9.4			7.0	%
Depreciation and amortization	21.4		3.1	%	20.6		3.2	%	0.8			4.1	%
	$	637.9	91.6	%	$	586.8	89.9	%	$	51.1		8.7	%
Operating profit	$	58.5	8.4	%	$	66.2	10.1	%	$	(7.7	)	(11.6	)%

Operating profit in the Global Integrated Agencies reportable segment in 2016 was $58.5 million, compared to $66.2 million in 2015. Operating margins declined by 170 basis points from 10.1% in 2015 to 8.4% in 2016. The decrease in operating profit and margin was largely due to increases in direct costs as a percentage of revenue as well as staff costs, partially offset by decreased deferred acquisition consideration expense.

The change in the categories of expenses as a percentage of revenue in the Global Integrated Agencies reportable segment for the years ended December 31,2016 and 2015 was as follows:

	2016				2015				Change
Global Integrated Agencies	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Millions)
Direct costs (1)	$	65.9	9.5	%	$	51.0	7.8	%	$	14.9		29.1	%
Staff costs (2)	434.5		62.4	%	406.9		62.3	%	27.6			6.8	%
Administrative costs	92.4		13.3	%	84.3		12.9	%	8.2			9.7	%
Deferred acquisition consideration	11.6		1.7	%	17.1		2.6	%	(5.5		)	(32.3	)%
Stock-based compensation	12.1		1.7	%	7.0		1.1	%	5.2			73.9	%
Depreciation and amortization	21.4		3.1	%	20.6		3.2	%	0.8			4.1	%
Total operating expenses	$	637.9	91.6	%	$	586.8	89.9	%	$	51.1		8.7	%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

Direct costs in the Global Integrated Agencies reportable segment increased by $14.9 million, or 29.1%, and as a percentage of revenue increased from 7.8% in 2015 to 9.5% in 2016, largely due to contributions from a Partner Firm acquired in the second half of 2016.

Staff costs in the Global Integrated Agencies reportable segment increased by $27.6 million, or 6.8%, and as a percentage of revenue remained consistent at approximately 62.4% in 2015 and 2016. The increase was due to increased headcount at certain Partner Firms to support the growth of their businesses as well as additional contributions from a Partner Firm acquired in the second half of 2016.

Administrative costs in the Global Integrated Agencies reportable segment increased by $8.2 million, or 9.7%, and as a percentage of revenue increased from 12.9% in 2015 to 13.3% in 2016, primarily due to higher occupancy expenses and other

25

general and administrative expenses attributable to existing Partner Firms as well as contributions from a Partner Firm acquired in the second half of 2016. These increases were incurred in 2016 to support the growth and expansion of certain Partner Firms and in support of some real estate consolidation initiatives.

Deferred acquisition consideration in the Global Integrated Agencies reportable segment was an expense of $11.6 million in 2016, compared to an expense of $17.1 million in 2015. The decrease was due to the aggregate under-performance of certain Partner Firms in 2016 relative to forecast expectations as compared to 2015 aggregate out-performance relative to forecast expectations in 2015. The decrease was partially offset by expenses pertaining to an amendment to a purchase agreement of previously acquired incremental ownership interests entered into during 2016, as well as increased estimated liability driven by the decrease in the Company's estimated future stock price, pertaining to an equity funded acquisition.

Domestic Creative Agencies

Revenue in the Domestic Creative Agencies reportable segment was $86.0 millionfor the year ended December 31,2016, representing a decrease of $5.7 million, or 6.2%, compared to revenue of $91.7 millionfor the year ended December 31,2015. The decrease related to a revenue decline of $5.3 million, or 5.9% from existing Partner Firms and an adverse foreign exchange impact of $0.4 million, or 0.4%.

The change in expenses as a percentage of revenue in the Domestic Creative Agencies reportable segment for the years ended December 31,2016 and 2015 was as follows:

	2016				2015				Change
Domestic Creative Agencies	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Millions)
Revenue	$	86.0			$	91.7			$	(5.7	)	(6.2	)%
Operating expenses
Cost of services sold	49.2		57.2	%	53.0		57.9	%	(3.8		)	(7.2	)%
Office and general expenses	18.5		21.6	%	19.2		21.0	%	(0.7		)	(3.7	)%
Depreciation and amortization	1.7		1.9	%	1.9		2.0	%	(0.2		)	(10.9	)%
	$	69.4	80.7	%	$	74.1	80.9	%	$	(4.8	)	(6.4	)%
Operating profit	$	16.6	19.3	%	$	17.5	19.1	%	$	(1.0	)	(5.4	)%

Operating profit in the Domestic Creative Agencies reportable segment in 2016 was $16.6 million, compared to $17.5 million in 2015. Operating margins improved 20 basis points from 19.1% in 2015 to 19.3% in 2016. The decrease in operating profit was largely due to a decline in revenue, partially offset by a decrease in staff costs.

The change in the categories of expenses as a percentage of revenue in the Domestic Creative Agencies reportable segment for the years ended December 31,2016 and 2015 was as follows:

	2016					2015					Change
Domestic Creative Agencies	$			% of Revenue		$			% of Revenue		$			%
	(Dollars in Millions)
Direct costs (1)	$	2.3		2.6	%	$	2.5		2.7	%	$	(0.2	)	(8.9	)%
Staff costs (2)	54.2			63.1	%	58.4			63.7	%	(4.2		)	(7.2	)%
Administrative costs	10.9			12.7	%	11.3			12.3	%	(0.4		)	(3.8	)%
Deferred acquisition consideration	(0.3		)	(0.3	)%	(0.6		)	(0.6	)%	0.3			(50.7	)%
Stock-based compensation	0.6			0.7	%	0.6			0.7	%	—			(1.4	)%
Depreciation and amortization	1.7			1.9	%	1.9			2.0	%	(0.2		)	(10.9	)%
Total operating expenses	$	69.4		80.7	%	$	74.1		80.9	%	$	(4.8	)	(6.4	)%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

26

Staff costs in the Domestic Creative Agencies reportable segment decreased by $4.2 million, or 7.2%, and as a percentage of revenue decreased from 63.7% in 2015 to 63.1% in 2016, primarily due to decreased headcount in client serving functions as a result of a decline in revenue at certain Partner Firms.

Specialist Communications

Revenue in the Specialist Communications reportable segment was $170.3 millionfor the year ended December 31,2016, representing an increase of $16.4 million, or 10.6%, compared to revenue of $153.9 millionfor the year ended December 31,2015. The increase in revenue was attributable to revenue growth of $17.4 million, or 11.3% from existing Partner Firms, partially offset by an adverse foreign exchange impact of $1.0 million, or 0.7%.

The change in expenses as a percentage of revenue in the Specialist Communications reportable segment for the years ended December 31,2016 and 2015 was as follows:

	2016				2015				Change
Specialist Communications	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Millions)
Revenue	$	170.3			$	153.9			$	16.4		10.6	%
Operating expenses
Cost of services sold	118.1		69.4	%	101.4		65.9	%	16.7			16.5	%
Office and general expenses	24.7		14.5	%	23.2		15.1	%	1.4			6.2	%
Depreciation and amortization	6.6		3.9	%	11.2		7.3	%	(4.6		)	(40.7	)%
Goodwill impairment	18.9		11.1	%	—		—	%	18.9			N/A
	$	168.3	98.9	%	$	135.9	88.3	%	$	32.5		23.9	%
Operating profit	$	1.9	1.1	%	$	18.0	11.7	%	$	(16.1	)	(89.3	)%

Operating profit in the Specialist Communications reportable segment in 2016 was $1.9 million, compared to $18.0 million in 2015. Operating margins declined 1,060 basis points from 11.7% in 2015 to 1.1% in 2016. The decrease in operating profit and margin was largely due to a goodwill impairment as well as increases in both staff costs and direct costs as a percentage of revenue, partially offset by a decrease in depreciation and amortization and higher income from deferred acquisition consideration.

The change in the categories of expenses as a percentage of revenue in the Specialist Communications reportable segment for the years ended December 31,2016 and 2015 was as follows:

	2016					2015					Change
Specialist Communications	$			% of Revenue		$			% of Revenue		$			%
	(Dollars in Millions)
Direct costs (1)	$	41.9		24.6	%	$	34.0		22.1	%	$	8.0		23.4	%
Staff costs (2)	80.8			47.5	%	72.2			46.9	%	8.6			11.9	%
Administrative costs	21.7			12.7	%	19.6			12.7	%	2.1			10.7	%
Deferred acquisition consideration	(5.2		)	(3.1	)%	(2.6		)	(1.7	)%	(2.6		)	101.5	%
Stock-based compensation	3.6			2.1	%	1.5			1.0	%	2.1			140.2	%
Depreciation and amortization	6.6			3.9	%	11.2			7.3	%	(4.6		)	(40.7	)%
Goodwill impairment	$	18.9		11.1	%	$	—		—	%	$	18.9		N/A
Total operating expenses	$	168.3		98.9	%	$	135.9		88.3	%	$	32.5		23.9	%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

Direct costs in the Specialist Communications reportable segment increased by $8.0 million, or 23.4%, and as a percentage of revenue increased from 22.1% in 2015 to 24.6% in 2016, primarily due to an increase in pass-through costs incurred on clients’ behalf at certain Partner Firms acting as principal verses agent.

27

Staff costs in the Specialist Communications reportable segment increased by $8.6 million, or 11.9%, and as a percentage of revenue increased from 46.9% in 2015 to 47.5% in 2016, primarily due to increased headcount at certain Partner Firms to support the growth of their businesses.

Depreciation and amortization in the Specialist Communications reportable segment decreased by $4.6 million, or 40.7%, and as a percentage of revenue decreased from 7.3% in 2015 to 3.9% in 2016, primarily due to lower amortization from intangibles related to prior year acquisitions.

Goodwill impairment in the Specialist Communications reportable segment was $18.9 million in 2016 pertaining to a partial impairment of goodwill relating to one of the Company's strategic communications reporting units. For more information see Note 8 of our consolidated financial statements.

Media Services

Revenue in the Media Services reportable segment was $131.5 millionfor the year ended December 31,2016 compared to revenue of $132.4 millionfor the year ended December 31,2015, representing a decrease of $0.9 million, or 0.7%. The decrease in revenue was driven by revenue declines of $4.4 million, or 3.3% from existing Partner Firms, excluding the effect of acquisitions, partially offset by revenue contribution from an acquired Partner Firm of $3.5 million, or 2.6%.

The change in expenses as a percentage of revenue in the Media Services reportable segment for the years ended December 31,2016 and 2015 was as follows:

	2016				2015				Change
Media Services	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Millions)
Revenue	$	131.5			$	132.4			$	(0.9	)	(0.7	)%
Operating expenses
Cost of services sold	95.4		72.5	%	92.4		69.8	%	2.9			3.2	%
Office and general expenses	24.3		18.5	%	15.2		11.5	%	9.0			59.4	%
Depreciation and amortization	5.7		4.3	%	4.7		3.5	%	1.1			22.7	%
	$	125.3	95.3	%	$	112.3	84.8	%	$	13.0		11.6	%
Operating profit (loss)	$	6.2	4.7	%	$	20.1	15.2	%	$	(14.0	)	(69.4	)%

Operating profit in the Media Services reportable segment in 2016 was $6.2 million, compared to $20.1 million in 2015. Operating margins declined 1,050 basis points from 15.2% in 2015 to 4.7% in 2016. The decrease in operating profit and margin was largely due to increases as a percentage of revenue in both staff costs and administrative costs, partially offset by a decrease in direct costs.

The change in the categories of expenses as a percentage of revenue in the Media Services reportable segment for the years ended December 31,2016 and 2015 was as follows:

	2016				2015					Change
Media Services	$		% of Revenue		$			% of Revenue		$			%
	(Dollars in Millions)
Direct costs (1)	$	31.2	23.7	%	$	36.2		27.3	%	$	(5.0	)	(13.7	)%
Staff costs (2)	64.8		49.3	%	57.5			43.5	%	7.3			12.7	%
Administrative	22.7		17.3	%	17.2			13.0	%	5.5			32.3	%
Deferred acquisition consideration	0.6		0.4	%	(3.7		)	(2.8	)%	4.3			(115.5	)%
Stock-based compensation	0.3		0.2	%	0.5			0.4	%	(0.2		)	(36.1	)%
Depreciation and amortization	5.7		4.3	%	4.7			3.5	%	1.1			22.7	%
Total operating expenses	$	125.3	95.3	%	$	112.3		84.8	%	$	13.0		11.6	%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

28

Direct costs in the Media Services reportable segment decreased by $5.0 million, or 13.7%, and as a percentage of revenue decreased from 27.3% in 2015 to 23.7% in 2016, primarily due to a decline in pass-through costs incurred on clients’ behalf at certain Partner Firms acting as principal verses agent.

Staff costs in the Media Services reportable segment increased by $7.3 million, or 12.7%, and as a percentage of revenue increased from 43.5% in 2015 to 49.3% in 2016. The increase was due to additional headcount at certain Partner Firms to support the growth of their business. The increase in staff costs as a percentage of revenue was due to an increase in staffing levels at certain Partner Firms in advance of revenue.

Administrative costs in the Media Services reportable segment increased by $5.5 million, or 32.3%, and as a percentage of revenue increased from 13.0% in 2015 to 17.3% in 2016. These increases were due to higher occupancy expenses and other general and administrative expenses, which were incurred in 2016 to support the growth and expansion of certain Partner Firms as well as some real estate consolidation initiatives.

All Other

Revenue in the All Other category was $301.6 millionfor the year ended December 31,2016, representing an increase of $6.4 million, or 2.2%, compared to revenue of $295.3 millionfor the year ended December 31,2015. The increase was driven by revenue growth from existing Partner Firms, excluding acquisitions, of $6.8 million, or 2.3%, as well as contributions from an acquired Partner Firm of $3.9 million, partially offset by an adverse foreign exchange impact of $3.8 million, or 1.3% and a disposition adjustment of $0.5 million, or 0.2%.

The change in expenses as a percentage of revenue in the All Other category for the years ended December 31,2016 and 2015 was as follows:

	2016				2015				Change
All Other	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Millions)
Revenue	$	301.6			$	295.3			$	6.4		2.2	%
Operating expenses
Cost of services sold	201.3		66.7	%	201.6		68.3	%	(0.2		)	(0.1	)%
Office and general expenses	51.9		17.2	%	66.1		22.4	%	(14.2		)	(21.5	)%
Depreciation and amortization	9.4		3.1	%	12.1		4.1	%	(2.8		)	(22.9	)%
Goodwill impairment	29.7		9.8	%	$	—	—	%	29.7			N/A
	$	292.3	96.9	%	$	279.8	94.8	%	$	12.4		4.4	%
Operating profit	$	9.4	3.1	%	$	15.4	5.2	%	$	(6.1	)	(39.3	)%

Operating profit in the All Other category in 2016 was $9.4 million, compared to $15.4 million in 2015. Operating margins declined 210 basis points from 5.2% in 2015 to 3.1% in 2016. The decrease in operating profit and margin was largely due to the goodwill impairment charge and an increase in staff costs as a percentage of revenue, partially offset by decreased deferred acquisition consideration expense.

29

The change in the categories of expenses as a percentage of revenue in the All Other category for the years ended December 31,2016 and 2015 was as follows:

	2016				2015				Change
All Other	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Millions)
Direct costs (1)	$	71.0	23.5	%	$	71.6	24.3	%	$	(0.6	)	(0.9	)%
Staff costs (2)	147.6		48.9	%	137.4		46.5	%	10.3			7.5	%
Administrative	31.5		10.4	%	27.1		9.2	%	4.4			16.2	%
Deferred acquisition consideration	1.3		0.4	%	26.1		8.9	%	(24.8		)	(94.9	)%
Stock-based compensation	1.8		0.6	%	5.5		1.8	%	(3.7		)	(67.5	)%
Depreciation and amortization	9.4		3.1	%	12.1		4.1	%	(2.8		)	(22.9	)%
Goodwill impairment	29.7		9.8	%	$	—	—	%	29.7			N/A
Total operating expenses	$	292.3	96.9	%	$	279.8	94.8	%	$	12.4		4.4	%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

Staff costs in the All Other category increased by $10.3 million, or 7.5%, and as a percentage of revenue increased from 46.5% in 2015 to 48.9% in 2016, primarily due to increased headcount at certain Partner Firms to support the growth of their businesses as well as contributions from a 2015 acquisition.

Deferred acquisition consideration in the All Other category was an expense of $1.3 million in 2016, compared to an expense of $26.1 million in 2015. The decrease was due to the aggregate out-performance relative to forecast expectations of certain Partner Firms in 2015 that did not reoccur in 2016.

Goodwill impairment in the All Other category was comprised of $27.9 million relating to an experiential reporting unit and partial impairment of goodwill of $1.7 million relating to a non-material reporting unit. For more information see Note 8 of our consolidated financial statements.

Corporate

The change in operating expenses for Corporate for the years ended December 31,2016 and 2015 was as follows:

					Variance
Corporate	2016		2015		$			%
	(Dollars in Millions)
Staff costs (1)	$	27.8	$	42.4	$	(14.6	)	(34.4	)%
Administrative costs	12.2		18.2		(6.1		)	(33.3	)%
Stock-based compensation	2.5		2.7		(0.2		)	(7.8	)%
Depreciation and amortization	1.6		1.8		(0.2		)	(10.7	)%
Total operating expenses	$	44.1	$	65.2	$	(21.1	)	(32.3	)%

(1) Excludes stock-based compensation.

Total operating expenses for Corporate decreased by $21.1 million to $44.1 million in 2016, compared to $65.2 million in 2015.

Staff costs for Corporate decreased by $14.6 million, or 34.4%. The decrease was primarily due to a one-time charge of $5.8 million in 2015 for the balance of prior cash bonus award amounts that were paid to the former Chief Executive Officer (“CEO”) and Chief Accounting Officer (“CAO”) but will not be recovered pursuant to the repayment terms of the applicable Separation Agreements. In addition, there was lower executive compensation expense in 2016.

Administrative costs for Corporate decreased by $6.1 million, or 33.3%, primarily due to reductions in the following categories: (1) legal fees related to the class-action litigation and SEC investigation of $9.6 million, (2) advertising and promotional expenses of $1.4 million, (3) professional fees of $1.0 million, (4) travel and entertainment expenses of $0.3 million, (5) occupancy costs

30

of $0.6 million, and (6) various other administrative costs of $1.1 million. In addition, the Company received $5.9 million of insurance proceeds for the year ended December 31,2016 compared to $1.0 millionfor the year ended December 31,2015 relating to the class-action litigation and SEC investigation. These reductions in administrative costs and receipt of insurance proceeds were partially offset by the $11.3 million of perquisite reimbursements from the former CEO received for the year ended December 31,2015 and the one-time SEC civil penalty payment of $1.5 millionfor the year ended December 31,2016.

Other Income, Net

Other income, net, decreased by $6.8 million from income of $7.2 millionfor the year ended December 31,2015 to income of $0.4 millionfor the year ended December 31,2016. The decrease pertains to the gain on sale of certain investments completed in 2015 of $6.5 million compared to the gain on sale of investments of $1.9 million completed in 2016, as well as a loss of $0.8 million related to the sale of Bryan Mills to the noncontrolling shareholders. In addition, the Company had other income of $0.4 million in 2016 compared to other income of $0.1 million in 2015.

Foreign Exchange

Foreign exchange loss was $0.2 million in 2016 compared to a foreign exchange loss of $39.3 million in 2015. The foreign exchange losses in both 2016 and 2015 primarily related to the U.S. dollar denominated indebtedness that was an obligation of the Company's Canadian parent company and were driven by the appreciation of the U.S. dollar against the Canadian dollar in the period.

Interest Expense, finance charges, and loss on redemption of notes, net

Interest expense and finance charges, net, for the year ended December 31,2016 was $65.9 million, an increase of $8.0 million over the $57.9 million of interest expense and finance charges, net, incurred for the year ended December 31,2015. The increase was due to higher average outstanding debt in 2016. In addition, the Company incurred a $33.3 million loss on redemption of the 6.75% Notes in March 2016.

Income Tax Expense (Benefit)

Income tax benefit for the year ended December 31,2016 was $9.4 million compared to an expense of $3.8 millionfor the year ended December 31,2015. The Company’s effective rate in 2016 and 2015 was lower than the statutory rate due to losses in certain tax jurisdictions where a valuation allowance was deemed necessary.

The Company’s U.S. operating units are generally structured as limited liability companies, which are treated as partnerships for tax purposes. The Company is only taxed on its share of profits, while noncontrolling holders are responsible for taxes on their share of profits.

Equity in Earnings (Losses) of Non-Consolidated Affiliates

Equity in earnings (losses) of non-consolidated affiliates represents the income attributable to equity-accounted affiliate operations. For the year ended December 31, 2016, the Company recorded a loss of $0.3 million compared to earnings of $1.1 millionfor the year ended December 31,2015.

Noncontrolling Interests

The effects of noncontrolling interests was $5.2 millionfor the year ended December 31,2016, a decrease of $3.9 million from the $9.1 millionfor the year ended December 31,2015. This decrease related to an increase in ownership in Partner Firms where there are noncontrolling shareholders.

Discontinued Operations

The loss, net of taxes, from discontinued operations was $6.3 million, for the year ended December 31,2015. There was no impact for the year ended December 31,2016.

Net Loss Attributable to MDC Partners Inc.

As a result of the foregoing, the net loss attributable to MDC Partners Inc. for the year ended December 31,2016 was $45.8 million or a loss of $0.89 per diluted share, compared to a net loss of $35.5 million, or $0.71 per diluted share reported for the year ended December 31,2015.

31

Year Ended December 31, 2015 Compared to Year Ended December 31, 2014

Revenue was $1.33 billionfor the year ended December 31,2015, representing an increase of $102.7 million, or 8.4%, compared to revenue of $1.22 billionfor the year ended December 31,2014. Revenue from acquisitions for 2015 was $45.8 million, or 3.7%, inclusive of a $0.8 million contribution to organic revenue growth. Revenue from acquisitions was composed of $32.0 million pertaining to acquisitions completed in 2014 and $13.8 million relating to acquisitions completed in 2015. Excluding the effect of the acquisitions and dispositions, revenue growth was $85.9 million, or 7.0%, partially offset by a foreign exchange impact of $28.9 million, or 2.4%.

Operating profit in 2015 was $72.1 million, compared to $87.7 million in 2014. Operating profit decreased by $18.5 million in the Advertising and Communications Group, while Corporate operating expenses decreased by $2.9 million in 2015.

Loss from continuing operations was $20.1 million in 2015, compared to income of $6.7 million in 2014.The decrease of $26.8 million was primarily attributable to (1) a decrease in operating profits of $15.6 million, primarily due to increased deferred acquisition expense of $19.9 million, (2) an increase in foreign exchange loss of $20.8 million, (3) an increase in net interest expense of $2.6 million, (4) offset by a decrease in income tax expense of $6.0 million, and (5) an increase in other income, net, of $6.5 million.

Advertising and Communications Group

The following discussion provides additional detailed disclosure for each of the Company’s four (4) new reportable segments, plus "All Other”, within the Advertising and Communications Group.

Revenue in the Advertising and Communications Group was $1.33 billionfor the year ended December 31,2015, representing an increase of $102.7 million, or 8.4%, compared to revenue of $1.22 billionfor the year ended December 31,2014. Revenue from acquisitions for 2015 was $45.8 million, or 3.7%, inclusive of a $0.8 million contribution to organic revenue growth. Excluding the effect of the acquisitions and dispositions, revenue growth was $85.9 million, or 7.0%, partially offset by a foreign exchange impact of $28.9 million, or 2.4%.

Revenue growth in the Advertising and Communications Group was attributable to new client wins and increased spend by existing clients. There was broad strength across most disciplines, with growth led by the Company's integrated advertising agencies, and media buying and planning platform, offset by a decline in the Company's promotions and experiential businesses. The promotions and experiential businesses were impacted by decreased billable pass-through costs incurred on the client’s behalf from the Company acting as principal which was due to a different mix of programs that had a smaller component of billable pass-through costs as compared to 2014. The Company's strongest client sectors were automobile, technology, consumer products, and healthcare, while revenue in the the financial and retail sectors declined.

Revenue growth in the Advertising and Communications Group was driven by the Company’s business in North America primarily consisting of revenue from acquisitions of $33.5 million, or 2.7%, as well as revenue growth excluding acquisitions of $58.1 million, or 4.7% from the United States, partially offset by an adverse foreign exchange impact of $20.6 million, or 1.7% in Canada. The revenue growth outside of North America was comprised of revenue from acquisitions of $10.9 million, or 0.9%. Revenue growth excluding acquisitions was $29.9 million, or 2.4%, partially offset by an adverse foreign exchange impact of $8.3 million, or 0.7%. In 2015, approximately 8.5% of the Company's total revenue came from outside of North America, up from approximately 6.5% in 2014.

The Company also utilizes a non-GAAP metric called organic revenue growth (decline), defined in Item 7. For the year ended December 31, 2015 organic revenue growth was $86.7 million, or 7.1%, of which $85.9 million pertained to Partner Firms which the Company has held throughout each of the comparable periods presented, while the remaining $0.8 million were contributions from acquisitions. The increase in revenue was also a result of non-GAAP acquisition (disposition), net adjustments of $46.3 million, or 3.8%, which was partially offset by a foreign exchange impact of $30.2 million, or 2.5%.

32

The components of the change in revenues in the Advertising and Communications Group for the year ended December 31,2015 was as follows:

			2015 Non-GAAP Activity										Change
Advertising and Communications Group	2014 Revenue		Foreign Exchange			Non-GAAP Acquisitions (Dispositions), net		Organic Revenue Growth (Decline)			2015 Revenue		Foreign Exchange		Non-GAAP Acquisitions (Dispositions), net		Organic Revenue Growth (Decline)		Total Revenue
	(Dollars in Millions)
United States	$	993.5	$	—		$	28.2	$	63.4		$	1,085.1	—	%	2.8	%	6.4	%	9.2	%
Canada	150.4		(20.6		)	1.4		(2.1		)	129.0		(13.7	)%	0.9	%	(1.4	)%	(14.2	)%
Other	79.6		(9.6		)	16.7		25.4			112.2		(12.1	)%	21.0	%	31.9	%	40.8	%
Total	$	1,223.5	$	(30.2	)	$	46.3	$	86.7		$	1,326.3	(2.5	)%	3.8	%	7.1	%	8.4	%

The below is a reconciliation between the revenue in the Advertising and Communications Group from acquired businesses in the statement of operations to non-GAAP acquisitions (dispositions), net for the year ended December 31,2015:

	Global Integrated Agencies		Specialist Communications		Media Services			All Other			Total
	(Dollars in Millions)
Revenue from acquisitions (dispositions), net (1)	$	9.7	$	20.9	$	0.8		$	14.4		$	45.8
Foreign exchange impact	1.3		—		—			—			1.3
Deductions from (contributions to) organic revenue growth (decline) (2)	4.6		0.6		(0.3		)	(5.7		)	(0.8		)
Non-GAAP acquisitions (dispositions), net	$	15.7	$	21.5	$	0.5		$	8.7		$	46.3

(1) For the year ended December 31, 2015, revenue from acquisitions was comprised of $32.0 million from acquisitions completed in 2014 and $13.8 million from acquisitions completed in 2015.

(2) Deductions from (contributions to) organic revenue growth (decline) represents the change in revenue, measured on a constant currency basis, relative to the comparable pre-acquisition period for acquired businesses that is included in the Company’s organic revenue growth (decline) calculation.

The geographic mix in revenues in the Advertising and Communications Group for the years ended December 31,2015 and 2014 was as follows:

Advertising and Communications Group	2015		2014
United States	81.8	%	81.2	%
Canada	9.7	%	12.3	%
Other	8.5	%	6.5	%

Overall, organic revenue growth in the Advertising and Communications Group was driven by the Company's business outside of North America, with organic revenue growth of 31.9%, primarily attributable to new client wins and increased spend from existing clients as we extended the Company's capabilities into new markets throughout Europe, Asia, and to a lesser degree, South America. Additional revenue growth came from multiple acquisitions of firms that helped us expand the Company's capabilities in the advertising, public relations, and mobile development areas.

The adverse currency impact was primarily due to the weakening of the Canadian dollar, the British Pound, and the Euro against the U.S. dollar.

33

The change in expenses as a percentage of revenue in the Advertising and Communications Group for the years ended December 31,2015 and 2014 was as follows:

	2015				2014				Change
Advertising and Communications Group	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Millions)
Revenue	$	1,326.3			$	1,223.5			$	102.7		8.4	%
Operating expenses
Cost of services sold	879.7		66.3	%	798.5		65.3	%	81.2			10.2	%
Office and general expenses	258.8		19.5	%	223.8		18.3	%	35.0			15.7	%
Depreciation and amortization	50.4		3.8	%	45.4		3.7	%	5.1			11.2	%
	1,189.0		89.6	%	1,067.7		87.3	%	121.3			11.4	%
Operating profit	$	137.3	10.4	%	$	155.8	12.7	%	$	(18.5	)	(11.9	)%

The change in the categories of expenses as a percentage of revenue in the Advertising and Communications Group for the years ended December 31,2015 and 2014 was as follows:

	2015				2014				Change
Advertising and Communications Group	$		% of Revenue		$		% of Revenue		$		%
	(Dollars in Millions)
Direct costs (1)	$	195.3	14.7	%	$	192.7	15.8	%	$	2.5	1.3	%
Staff costs (2)	732.4		55.2	%	652.8		53.4	%	79.6		12.2	%
Administrative costs	159.4		12.0	%	148.3		12.1	%	11.1		7.5	%
Deferred acquisition consideration	36.3		2.7	%	16.5		1.3	%	19.9		120.7	%
Stock-based compensation	15.1		1.1	%	12.0		1.0	%	3.0		25.1	%
Depreciation and amortization	50.4		3.8	%	45.4		3.7	%	5.1		11.2	%
Total operating expenses	$	1,189.0	89.6	%	$	1,067.7	87.3	%	$	121.3	11.4	%

(1) Exclude staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

Operating profit in the Advertising and Communications Group in 2015 was $137.3 million compared to $155.8 million in 2014, with operating margins declining by 240 basis points from 12.7% to 10.4%. The decrease in operating profit and margin was largely due to increases in staff costs as a percentage of revenue and increases in deferred acquisition consideration expense, partially offset by a decrease in direct costs as a percentage of revenue.

Direct costs in the Advertising and Communications Group increased by $2.5 million, or 1.3% and as a percentage of revenue declined from 15.8% in 2014 to 14.7% in 2015 as pass-through costs incurred on the clients’ behalf decreased, most notably in the promotions and experiential businesses in conjunction with their revenue decline.

Staff costs in the Advertising and Communications Group increased by $79.6 million, or 12.2% and as a percentage of revenue increased from 53.4% in 2014 to 55.2% in 2015. The increase was primarily attributable to headcount expansion in areas directly servicing clients as well as in administrative rolls in order to support Partner Firm growth. In addition, severance costs increased approximately $6.0 million from 2014 to 2015.

Deferred acquisition consideration expense in the Advertising and Communications Group increased $19.9 million, or 120.7% from $16.5 million in 2014 to $36.3 million in 2015. The aggregate out performance of certain Partner Firms relative to forecast expectations was at a higher magnitude in 2015 as compared to the 2014.

Stock-based compensation in the Advertising and Communications Group increased by $3.0 million but was consistent at approximately 1.0% of revenue.

Depreciation and amortization expense in the Advertising and Communications Group increased by $5.1 million primarily due to the impact of acquisitions.

34

Global Integrated Agencies

Revenue in the Global Integrated Agencies reportable segment was $653.0 millionfor the year ended December 31,2015, representing an increase of $52.8 million, or 8.8%, compared to revenue of $600.2 millionfor the year ended December 31,2014. The increase related to revenue growth from existing Partner Firms, excluding the effect of acquisitions, of $51.2 million, or 8.5%, as well as revenue from acquisitions of $15.7 million, or 2.6%. These increases were partially offset by an adverse foreign exchange impact of $14.1 million, or 2.3%.

The change in expenses as a percentage of revenue in the Global Integrated Agencies reportable segment for the years ended December 31,2015 and 2014 was as follows:

	2015				2014				Change
Global Integrated Agencies	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Thousands)
Revenue	$	653.0			$	600.2			$	52.8		8.8	%
Operating expenses
Cost of services sold	431.3		66.0	%	393.7		65.6	%	37.5			9.5	%
Office and general expenses	135.0		20.7	%	121.7		20.3	%	13.2			10.9	%
Depreciation and amortization	20.6		3.2	%	17.4		2.9	%	3.2			18.3	%
	$	586.8	89.9	%	$	532.9	88.8	%	$	54.0		10.1	%
Operating profit	$	66.2	10.1	%	$	67.3	11.2	%	$	(1.1	)	(1.7	)%

Operating profit in the Global Integrated Agencies reportable segment in 2015 was $66.2 million, compared to $67.3 million in 2014. Operating margins declined 110 basis points from 11.2% in 2014 to 10.1% in 2015. The decrease in operating profit and margin was largely due to increases in direct costs as a percentage of revenue as well as increases in staff costs and deferred acquisition consideration expense.

The change in the categories of expenses as a percentage of revenue in the Global Integrated Agencies reportable segment for the years ended December 31,2015 and 2014 was as follows:

	2015				2014				Change
Global Integrated Agencies	$		% of Revenue		$		% of Revenue		$		%
	(Dollars in Thousands)
Direct costs (1)	$	51.0	7.8	%	$	42.0	7.0	%	$	9.0	21.3	%
Staff costs (2)	406.9		62.3	%	372.9		62.1	%	34.0		9.1	%
Administrative costs	84.3		12.9	%	81.8		13.6	%	2.5		3.0	%
Deferred acquisition consideration	17.1		2.6	%	13.6		2.3	%	3.4		25.1	%
Stock-based compensation	7.0		1.1	%	5.0		0.8	%	1.9		38.4	%
Depreciation and amortization	20.6		3.2	%	17.4		2.9	%	3.2		18.3	%
Total operating expenses	$	586.8	89.9	%	$	532.9	88.8	%	$	54.0	10.1	%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

Direct costs in the Global Integrated Agencies reportable segment increased by $9.0 million, or 21.3%, and as a percentage of revenue increased from 7.0% in 2014 to 7.8% in 2015, primarily due to the full year contribution of an acquisition with a high component of direct costs completed in the second half of 2014.

Staff costs in the Global Integrated Agencies reportable segment increased by $34.0 million, or 9.1%, but was consistent at approximately 62% of revenue. The increase was due to increased headcount at certain Partner Firms to support the growth of their businesses, as well as the full year contribution of an acquisition completed in the second half of 2014.

Deferred acquisition consideration in the Global Integrated Agencies reportable segment was an expense of $17.1 million in 2015, compared to an expense of $13.6 million in 2014. The increase was due to larger out-performance relative to forecast expectations of certain Partner Firms in 2015 as compared to 2014.

35

Domestic Creative Agencies

Revenue in the Domestic Creative Agencies reportable segment was $91.7 millionfor the year ended December 31,2015, representing an increase of $8.5 million, or 10.2%, compared to revenue of $83.2 millionfor the year ended December 31,2014. The increase related to revenue growth from existing Partner Firm of $9.5 million, or 11.4%, partially offset by an adverse foreign exchange impact of $1.1 million, or 1.2%.

The change in expenses as a percentage of revenue in the Domestic Creative Agencies reportable segment for the years ended December 31,2015 and 2014 was as follows:

	2015				2014				Change
Domestic Creative Agencies	$		% of Revenue		$		% of Revenue		$		%
	(Dollars in Thousands)
Revenue	$	91.7			$	83.2			$	8.5	10.2	%
Operating expenses
Cost of services sold	53.0		57.9	%	48.2		57.9	%	4.9		10.1	%
Office and general expenses	19.2		21.0	%	19.0		22.8	%	0.3		1.5	%
Depreciation and amortization	1.9		2.0	%	1.8		2.2	%	—		2.5	%
	$	74.1	80.9	%	$	68.9	82.9	%	$	5.2	7.5	%
Operating profit	$	17.5	19.1	%	$	14.3	17.1	%	$	3.3	22.9	%

Operating profit in the Domestic Creative Agencies reportable segment in 2015 was $17.5 million, compared to $14.3 million in 2014. Operating margins improved 200 basis points from 17.1% in 2014 to 19.1% in 2015. The increase in operating profit and margin was largely due to the decrease in deferred acquisition consideration.

The change in the categories of expenses as a percentage of revenue in the Domestic Creative Agencies reportable segment for the years ended December 31,2015 and 2014 was as follows:

	2015					2014				Change
Domestic Creative Agencies	$			% of Revenue		$		% of Revenue		$			%
	(Dollars in Thousands)
Direct costs (1)	$	2.5		2.7	%	$	2.2	2.7	%	$	0.3		11.3	%
Staff costs (2)	58.4			63.7	%	52.4		63.0	%	6.0			11.4	%
Administrative costs	11.3			12.3	%	10.6		12.8	%	0.7			6.6	%
Deferred acquisition consideration	(0.6		)	(0.6	)%	1.4		1.7	%	(2.0		)	(139.4	)%
Stock-based compensation	0.6			0.7	%	0.4		0.5	%	0.2			63.2	%
Depreciation and amortization	1.9			2.0	%	1.8		2.2	%	—			2.5	%
Total operating expenses	$	74.1		80.9	%	$	68.9	82.9	%	$	5.2		7.5	%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

Deferred acquisition consideration in the Domestic Creative Agencies reportable segment was income of $0.6 million in 2015, compared to expense of $1.4 million in 2014. The change in deferred acquisition consideration was due to larger aggregate under-performance relative to forecast expectations of certain Partner Firms in 2015 as compared to 2014.

Specialist Communications

Revenue in the Specialist Communications reportable segment was $153.9 millionfor the year ended December 31,2015, representing an increase of $29.0 million, or 23.2%, compared to revenue of $124.9 millionfor the year ended December 31,2014. This increase related to revenue growth from existing Partner Firms, excluding the effect of acquisitions, of $9.6 million, or 7.7%, as well as revenue from acquisitions of $21.5 million, or 17.2%. These increases were partially offset by an adverse foreign exchange impact of $2.1 million, or 1.7%.

36

The change in expenses as a percentage of revenue in the Specialist Communications reportable segment for the years ended December 31,2015 and 2014 was as follows:

	2015				2014				Change
Specialist Communications	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Thousands)
Revenue	$	153.9			$	124.9			$	29.0		23.2	%
Operating expenses
Cost of services sold	101.4		65.9	%	75.8		60.7	%	25.6			33.8	%
Office and general expenses	23.2		15.1	%	24.6		19.7	%	(1.3		)	(5.5	)%
Depreciation and amortization	11.2		7.3	%	8.3		6.6	%	2.9			35.4	%
	$	135.9	88.3	%	$	108.7	87.0	%	$	27.2		25.0	%
Operating profit	$	18.0	11.7	%	$	16.2	13.0	%	$	1.8		11.1	%

Operating profit in the Specialist Communications reportable segment in 2015 was $18.0 million compared to $16.2 million in 2014. Operating margins declined 130 basis points from 13.0% in 2014 to 11.7% in 2015. The increase in operating profit was largely due to income from deferred acquisition consideration in 2015 as compared to expense in 2014. The decrease in operating margin was largely due to higher direct costs and staff costs in 2015 as compared to 2014.

The change in the categories of expenses as a percentage of revenue in the Specialist Communications reportable segment for the years ended December 31,2015 and 2014 was as follows:

	2015					2014				Change
Specialist Communications	$			% of Revenue		$		% of Revenue		$			%
	(Dollars in Thousands)
Direct costs (1)	$	34.0		22.1	%	$	22.8	18.3	%	$	11.1		48.7	%
Staff costs (2)	72.2			46.9	%	55.2		44.2	%	17.0			30.9	%
Administrative costs	19.6			12.7	%	15.8		12.7	%	3.8			23.7	%
Deferred acquisition consideration	(2.6		)	(1.7	)%	4.5		3.6	%	(7.1		)	(157.1	)%
Stock-based compensation	1.5			1.0	%	2.1		1.6	%	(0.5		)	(26.3	)%
Depreciation and amortization	11.2			7.3	%	8.3		6.6	%	2.9			35.4	%
Total operating expenses	$	135.9		88.3	%	$	108.7	87.0	%	$	27.2		25.0	%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

Direct costs in the Specialist Communications reportable segment increased $11.1 million, or 48.7%, and as a percentage of revenue increased from 18.3% in 2014 to 22.1% in 2015, primarily due to the full year contribution of an acquisition completed in the second half of 2014.

Staff costs in the Specialist Communications reportable segment increased by $17.0 million, or 30.9%, and as a percentage of revenue increased from 44.2% in 2014 to 46.9% in 2015. The increase in staff costs was due to additional headcount at certain Partner Firms to support the growth of their businesses as well as the full year contribution of an acquisition completed in the second half of 2014. The increase in staff costs as a percentage of revenue was due to an increase in staffing levels in advance of revenue at certain Partner Firms as well as slower staffing decreases at other Partner Firms.

Deferred acquisition consideration in the Specialist Communications reportable segment was income of $2.6 million in 2015, compared to an expense of $4.5 million in 2014. The change in deferred acquisition consideration was due to the aggregate under-performance relative to forecast expectations of certain Partner Firms in 2015 as compared to 2014.

37

Media Services

Revenue in the Media Services reportable segment was $132.4 millionfor the year ended December 31,2015, representing an increase of $11.6 million, or 9.6%, compared to revenue of $120.9 millionfor the year ended December 31,2014. This increase related to revenue growth from existing Partner Firms, excluding the effect of acquisitions, of $11.1 million, or 9.2%, as well as revenue from acquisitions of $0.5 million, or 0.4%.

The change in expenses as a percentage of revenue in the Media Services reportable segment for the years ended December 31,2015 and 2014 was as follows:

	2015				2014				Change
Media Services	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Thousands)
Revenue	$	132.4			$	120.9			$	11.6		9.6	%
Operating expenses
Cost of services sold	92.4		69.8	%	71.7		59.4	%	20.7			28.8	%
Office and general expenses	15.2		11.5	%	13.3		11.0	%	1.9			14.5	%
Depreciation and amortization	4.7		3.5	%	6.1		5.1	%	(1.5		)	(23.8	)%
	$	112.3	84.8	%	$	91.1	75.4	%	$	21.2		23.2	%
Operating profit	$	20.1	15.2	%	$	29.7	24.6	%	$	(9.6	)	(32.3	)%

Operating profit in the Media Services reportable segment in 2015 was $20.1 million, compared to $29.7 million in 2014. Operating margins declined 940 basis points from 24.6% in 2014 to 15.2% in 2015. The decrease in operating profit and margin was largely due to an increase in staff costs and a decrease in income from deferred acquisition consideration.

The change in the categories of expenses as a percentage of revenue in the Media Services reportable segment for the years ended December 31,2015 and 2014 was as follows:

	2015					2014					Change
Media Services	$			% of Revenue		$			% of Revenue		$			%
	(Dollars in Thousands)
Direct costs (1)	$	36.2		27.3	%	$	34.4		28.4	%	$	1.8		5.2	%
Staff costs (2)	57.5			43.5	%	44.8			37.1	%	12.7			28.4	%
Administrative costs	17.2			13.0	%	14.1			11.7	%	3.0			21.4	%
Deferred acquisition consideration	(3.7		)	(2.8	)%	(9.2		)	(7.6	)%	5.5			(59.7	)%
Stock-based compensation	0.5			0.4	%	0.9			0.8	%	(0.4		)	(48.7	)%
Depreciation and amortization	4.7			3.5	%	6.1			5.1	%	(1.5		)	(23.8	)%
Total operating expenses	$	112.3		84.8	%	$	91.1		75.4	%	$	21.2		23.2	%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

Staff costs in the Media Services reportable segment increased by $12.7 million, or 28.4% and as a percentage of revenue increased from 37.1% in 2014 to 43.5% in 2015. The increase in staff costs was due to additional headcount at certain Partner Firms to support the growth of their business as well as the contribution from an acquisition completed in the second half of 2015. The increase in staff costs as a percentage of revenue was due to an increase in staffing levels at certain Partner Firms in advance of revenue.

Deferred acquisition consideration in the Media Services reportable segment was income of $3.7 million in 2015, compared to income of $9.2 million in 2014. The change in deferred acquisition consideration was due to lower aggregate under-performance relative to forecast expectations of certain Partner Firms in 2015 as compared to 2014.

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All Other

Revenue in the All Other category was $295.3 millionfor the year ended December 31,2015, representing an increase of $0.9 million, or 0.3%, compared to revenue of $294.4 millionfor the year ended December 31,2014. The increase related to revenue growth from existing Partner Firms, excluding the effect of acquisitions, of $5.2 million, or 1.8%, as well as revenue from acquisitions of $8.7 million, or 2.9%. These increases were partially offset by an adverse foreign exchange impact of $13.0 million, or 4.4%.

The change in expenses as a percentage of revenue in the All Other category for the years ended December 31,2015 and 2014 was as follows:

	2015				2014				Change
All Other	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Thousands)
Revenue	$	295.3			$	294.4			$	0.9		0.3	%
Operating expenses
Cost of services sold	201.6		68.3	%	209.1		71.0	%	(7.5		)	(3.6	)%
Office and general expenses	66.1		22.4	%	45.2		15.4	%	20.9			46.3	%
Depreciation and amortization	12.1		4.1	%	11.8		4.0	%	0.4			3.0	%
	$	279.8	94.8	%	$	266.1	90.4	%	$	13.8		5.2	%
Operating profit	$	15.4	5.2	%	$	28.3	9.6	%	$	(12.9	)	(45.5	)%

Operating profit in the All Other category in 2015 was $15.4 million, compared to $28.3 million in 2014. Operating margins declined by 440 basis points from 9.6% in 2014 to 5.2% in 2015. The decrease in operating profit and margin was due to increases in deferred acquisition consideration expense and staff costs, partially offset by a decrease in direct costs.

The change in the categories of expenses as a percentage of revenue in the All Other category for the years ended December 31,2015 and 2014 was as follows:

	2015				2014				Change
All Other	$		% of Revenue		$		% of Revenue		$			%
	(Dollars in Thousands)
Direct costs (1)	$	71.6	24.3	%	$	91.2	31.0	%	$	(19.6	)	(21.5	)%
Staff costs (2)	137.4		46.5	%	127.4		43.3	%	9.9			7.8	%
Administrative costs	27.1		9.2	%	25.9		8.8	%	1.2			4.5	%
Deferred acquisition consideration	26.1		8.9	%	6.0		2.0	%	20.1			333.3	%
Stock-based compensation	5.5		1.8	%	3.6		1.2	%	1.8			50.2	%
Depreciation and amortization	12.1		4.1	%	11.8		4.0	%	0.4			3.0	%
Total operating expenses	$	279.8	94.8	%	$	266.1	90.4	%	$	13.8		5.2	%

(1) Excludes staff costs.

(2) Excludes stock-based compensation and is comprised of amounts reported in both cost of services sold and office and general expenses.

Direct costs in the All Other category decreased by $19.6 million, or 21.5%, and as a percentage of revenue decreased from 31.0% in 2014 to 24.3% in 2015, as pass-through costs incurred on the clients' behalf decreased, most notably in the promotions and experiential businesses in conjunction with the revenue decline of such businesses.

Staff costs in the All Other category increased by $9.9 million, or 7.8% and as a percentage of revenue increased from 43.3% in 2014 to 46.5% in 2015. The increase in staff costs was primarily due to additional contributions from an acquisition completed in 2015 as well as additional headcount at certain Partner Firms to support the growth of their businesses. The increase in staff costs as a percentage of revenue was due to increases in staffing levels in advance of revenue at certain Partner Firms as well as slower staffing decreases at other Partner Firms.

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Deferred acquisition consideration in the All Other category was an expense of $26.1 million in 2015, compared to an expense of $6.0 million in 2014. The increase in deferred acquisition consideration expense was due to larger out-performance of certain Partner Firms in 2015 relative to forecast expectations as compared to 2014.

Corporate

The change in operating expenses for Corporate for the years ended December 31,2015 and 2014 was as follows:

					Variance
Corporate Group	2015		2014		$			%
	(Dollars in Millions)
Staff costs (1)	$	42.4	$	37.9	$	4.5		11.9	%
Administrative costs	18.2		22.7		(4.5		)	(19.7	)%
Stock-based compensation	2.7		5.7		(2.9		)	(51.6	)%
Depreciation and amortization	1.8		1.8		—			(0.6	)%
Total operating expenses	$	65.2	$	68.1	$	(2.9	)	(4.3	)%

(1) Excludes stock-based compensation.

Total operating expenses for Corporate decreased by $2.9 million to $65.2 million in 2015, compared to $68.1 million in 2014. 

Staff costs for Corporate increased by $4.5 million, or 11.9%. The increase was due to a one-time charge of $5.8 million in 2015 for the balance of the prior year cash bonus awards that were previously paid to the Company’s former CEO and former CAO but will not be recovered pursuant to the repayment terms of the applicable Separation Agreements. This one-time charge was offset by a general reduction of staff costs of $1.3 million.

Administrative costs decreased by $4.5 million, or 19.7%. The decrease was due to the following cost reductions: (i) travel and entertainment expenses of $2.8 million, (ii) advertising and promotional expenses of $2.5 million, (iii) legal expenses of $1.1 million (excluding legal fees related to the ongoing SEC inquiry), and (iv) various other administrative expenses of $0.6 million.  The foregoing reductions in administrative costs were impacted by other one-time items, including the following: (a) a reduction in administrative costs of $11.3 million as a result of repayments the Company received from the Company’s former CEO; (b) incurrence of $12.7 million of legal fees related to the ongoing SEC inquiry (net of $1.0 million insurance proceeds); and (c) the write off of certain assets related to the termination of the former CEO and former CAO of $1.1 million.

Other Income, Net

Other income, net, increased by $6.5 million from income of $0.7 million in 2014 to income of $7.2 million in 2015. The increase related to the 2015 gain on sale of certain equity and cost method investments.

Foreign Exchange

The foreign exchange loss was $39.3 million for 2015, compared to a loss of $18.5 million in 2014. This unrealized loss was due primarily to the fluctuation in the U.S. dollar during 2015 and 2014 compared to the Canadian dollar relating to the Company’s U.S. dollar denominated intercompany balances with its Canadian subsidiaries.

Interest Expense and Finance Charges, Net

Interest expense and finance charges, net for 2015 were $57.4 million, an increase of $2.6 million over the $54.8 million of interest expense and finance charges, net incurred during 2014. The increase in interest expense in 2015 was due to the issuance of the additional $75 million in principal amount of the 6.75% Notes in April 2014 and borrowings on the revolver.

Income Tax Expense

Income tax expense in 2015 was $3.8 million compared to $9.8 million for 2014. The Company’s effective rate was substantially higher than the statutory rate in 2015, primarily due to non-deductible stock-based compensation, an increase in the valuation allowance, and the effect of the difference in the U.S. and foreign federal rates compared to the Canadian statutory rate, offset in part by noncontrolling interest charges. The Company’s effective tax rate was substantially higher than the statutory rate in 2014 due to non-deductible stock-based compensation, an increase in the Company’s valuation allowance, and the effect of the differences in the U.S. and foreign federal rates compared to the Canadian statutory rate, offset in part by noncontrolling interest charges.

The Company’s U.S. operating units are generally structured as limited liability companies, which are treated as partnerships for tax purposes. The Company is only taxed on its share of profits, while noncontrolling holders are responsible for taxes on their share of the profits.

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Equity in Earnings of Non-Consolidated Affiliates

Equity in non-consolidated affiliates represents the income attributable to equity-accounted affiliate operations. In 2015, the Company recorded earnings of $1.1 million compared to earnings of $1.4 million in 2014.

Noncontrolling Interests

The effects of noncontrolling interest was $9.1 million in 2015, an increase of $2.2 million from the $6.9 million during 2014. This increase related to the overall increase in profits in Partner Firms where there are noncontrolling shareholders.

Discontinued Operations

The loss net of taxes from discontinued operations for 2015 was $6.3 million, compared to a loss of $21.3 million in 2014. The decrease in the loss from discontinued operations was due to a goodwill write off of $15.6 million in 2014 that was included in the loss from discontinued operations as a result of the Company's decision to strategically sell the net assets of Accent.

Net Loss Attributable to MDC Partners Inc.

As a result of the foregoing, the net loss attributable to MDC Partners Inc. for 2015 was $35.5 million or a loss of $0.71 per diluted share, compared to a net loss of $21.4 million or $0.43 per diluted share reported for 2014.

Liquidity and Capital Resources

The following table provides information about the Company’s liquidity position:

Liquidity	2016			2015			2014
	(In Thousands, Except for Long-Term Debt to Shareholders’ Equity Ratio)
Cash and cash equivalents	$	27,921		$	61,458		$	113,348
Working capital (deficit)	$	(313,239	)	$	(417,997	)	$	(275,987	)
Cash provided by (used in) operating activities	$	(1,212	)	$	161,395		$	165,358
Cash used in investing activities	$	(25,196	)	$	(29,893	)	$	(99,686	)
Cash used in financing activities	$	(9,257	)	$	(188,610	)	$	(53,263	)
Ratio of long-term debt to shareholders’ deficit	(1.84		)	(1.47		)	(2.09		)

As of December 31, 2016, 2015 and 2014, $5.3 million, $5.2 million, and $6.5 million, respectively, of the Company’s consolidated cash position was held by subsidiaries. Although this amount is available for the subsidiaries’ use, it does not represent cash that is distributable as earnings to MDC for use to reduce its indebtedness. It is the Company’s intent through its cash management system to reduce outstanding borrowings under the Credit Agreement by using available cash.

Working Capital

At December 31, 2016, the Company had a working capital deficit of $313.2 million compared to a deficit of $418.0 million at December 31, 2015. Working capital deficit decreased by $104.8 million primarily due to the net proceeds from the issuance of the 6.50% Notes, offset by the redemption of the 6.75% Notes, payments of deferred acquisition consideration and from a mix shift in the media business. The Company’s working capital is impacted by seasonality in media buying, amounts spent by clients, and timing of amounts received from clients and subsequently paid to suppliers. Media buying is impacted by the timing of certain events, such as major sporting competitions and national holidays, and there can be a quarter to quarter lag between the time amounts received from clients for the media buying are subsequently paid to suppliers. At December 31, 2016, the Company had $54.4 million of borrowings outstanding under its Credit Agreement. The Company includes amounts due to noncontrolling interest holders, for their share of profits, in accruals and other liabilities. During 2016, 2015 and 2014, the Company made distributions to these noncontrolling interest holders of $7.8 million, $9.5 million and $6.5 million, respectively. At December 31, 2016, $4.2 million remains outstanding to be distributed to noncontrolling interest holders over the next twelve months.

The Company intends to maintain sufficient cash or availability of funds under the Credit Agreement at any particular time to adequately fund working capital should there be a need to do so from time to time.

Operating Activities

Cash flows used in continuing operations for 2016 were $1.2 million. This was attributable primarily to a loss from continuing operations of $40.6 million, decrease in accounts payable, accruals and other current liabilities of $110.0 million primarily driven by the timing of payments to suppliers, an increase in accounts receivable of $16.8 million, an increase in prepaid expenses and other current assets of $13.6 million, foreign exchange of $8.2 million, deferred income taxes of $10.0 million, and a gain on the sale of assets of $0.4 million. This was partially offset by depreciation and amortization of $55.6 million, goodwill impairment

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of $48.5 million, a loss on the redemption of the 6.75% Notes of $26.9 million, stock-based compensation of $21.0 million, a net decrease in other and non-current assets and liabilities of $13.5 million, a decrease in expenditures billable to clients of $13.0 million, an increase in advanced billings of $11.4 million, adjustments to deferred acquisition consideration of $8.2 million, and losses of non-consolidated affiliates of $0.3 million.

Cash flows provided by continuing operations for 2015 were $162.7 million. This was attributable primarily to an increase in accounts payable, accruals and other current liabilities of $75.1 million, depreciation and amortization of $54.5 million, adjustments to deferred acquisition consideration of $38.9 million, foreign exchange of $30.2 million, stock-based compensation of $17.8 million, a decrease in other and non-current assets and liabilities of $4.7 million, deferred income taxes of $0.1 million, and an decrease in prepaid expenses and other current assets of $1.6 million. This was partially offset by an decrease in advanced billings of $23.5 million, a loss from continuing operations of $20.1 million, a gain on sale of investments of $6.5 million, an increase in accounts receivable of $4.8 million, an increase in expenditures billable to clients of $3.9 million, and earnings of non-consolidated affiliates of $1.1 million. Discontinued operations used cash of $1.3 million.

Cash flows provided by continuing operations for 2014 were $167.2 million. This was attributable primarily to an increase in accounts payable, accruals and other current liabilities of $89.0 million, depreciation and amortization of $49.4 million, a decrease in expenditures billable to clients of $23.4 million, adjustments to deferred acquisition consideration of $18.7 million, stock-based compensation of $17.7 million, foreign exchange of $14.8 million, deferred income taxes of $8.3 million, and income from continuing operations of $6.7 million. This was partially offset by an increase in accounts receivable of $35.8 million, a decrease in advanced billings of $13.8 million, an increase in other and non-current assets and liabilities of $7.8 million, an increase in prepaid expenses and other current assets of $1.9 million, and earnings of non-consolidated affiliates of $1.4 million. Discontinued operations used cash of $1.8 million.

Investing Activities

Cash flows used in investing activities were $25.2 million for 2016, compared with $29.9 million for 2015, and $99.7 million in 2014.

In the year ended December 31, 2016, capital expenditures totaled $29.4 million, primarily driven by $16.4 million incurred by the Global Integrated Agencies reportable segment. These expenditures consisted primarily of computer equipment, furniture and fixtures, and leasehold improvements. Additionally, the Company paid $3.8 million for other investments and $2.5 million for deposits on capital expenditures not yet placed into service. These outflows were partially offset by $7.4 million of profit distributions from non-consolidated affiliates, $2.5 million of net cash acquired from acquisitions and $0.7 million of proceeds from the sale of assets.

In the year ended December 31, 2015, capital expenditures totaled $23.6 million, primarily driven by $17.0 million incurred by the Global Integrated Agencies reportable segment. These expenditures consisted primarily of computer equipment, furniture and fixtures, and leasehold improvements. Additionally, the Company paid $24.8 million, net of cash acquired, for acquisitions and $7.3 million for other investments. These outflows were partially offset by $8.6 million of proceeds from the sale of assets. The Company also received $17.1 million of cash proceeds in 2015 from the sale of Accent.

In the year ended December 31, 2014, capital expenditures totaled $26.4 million, primarily driven by $19.7 million incurred by the Global Integrated Agencies reportable segment. These expenditures consisted primarily of computer equipment, furniture and fixtures, and leasehold improvements. Additionally, the Company paid $68.3 million, net of cash acquired for acquisitions and $6.3 million for other investments. These outflows were partially offset by $3.4 million of profit distributions from non-consolidated affiliates and $0.1 million of proceeds from the sale of assets and investments. Discontinued operations used cash of $2.1 million in 2014 related to capital expenditures.

Financing Activities

During the year ended December 31, 2016, cash flows used in financing activities were $9.3 million, and consisted of the redemption of the 6.75% Notes of $735.0 million, a premium paid in connection with such redemption of $26.9 million including accrued interest through the settlement date, $135.7 million of acquisition related payments, payment of dividends of $32.9 million, $21.6 million of debt issuance costs paid in connection with the issuance of the 6.50% Notes, distributions to noncontrolling partners of $7.8 million, the purchase of treasury shares for income tax withholding requirements of $3.4 million, and repayments of long-term debt of $0.5 million. These amounts were partially offset by $900.0 million in proceeds from the issuance of the 6.50% Notes and $54.4 million in net borrowings under the Credit Agreement.

During the year ended December 31, 2015, cash flows used in financing activities were $188.6 million, and consisted of $134.1 million of acquisition related payments, payment of dividends of $42.3 million, distributions to noncontrolling partners of $9.5 million, the purchase of treasury shares for income tax withholding requirements of $2.4 million and repayments of long-term debt of $0.5 million. These amounts were partially offset by proceeds from other financing activities of $0.2 million.

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During the year ended December 31, 2014, cash flows used in financing activities were $53.3 million, and consisted of $78.3 million of acquisition related payments, payment of dividends of $37.7 million, distributions to noncontrolling partners of $6.5 million, the purchase of treasury shares for income tax withholding requirements of $5.4 million, deferred financing costs of $3.7 million, and repayments of long-term debt of $0.7 million. These amounts were partially offset by proceeds from the issuance of additional 6.75% Notes of $78.9 million and proceeds from other financing activities of $0.1 million.

Total Debt

6.50% Senior Notes Due 2024

On March 23, 2016, MDC entered into an indenture (the “Indenture”) among MDC, its existing and future restricted subsidiaries that guarantee, or are co-borrowers under or grant liens to secure, the Credit Agreement, as guarantors (the “Guarantors”) and The Bank of New York Mellon, as trustee, relating to the issuance by MDC of its $900 million aggregate principal amount of 6.50% senior unsecured notes due 2024. The 6.50% Notes were sold in a private placement in reliance on exceptions from registration under the ’33 Act. The 6.50% Notes bear interest at a rate of 6.50% per annum, accruing from March 23, 2016. Interest is payable semiannually in arrears on May 1 and November 1 of each year, beginning November 1, 2016. The 6.50% Notes mature on May 1, 2024, unless earlier redeemed or repurchased. The Company received net proceeds from the offering of the 6.50% Notes equal to approximately $880,000. The Company used the net proceeds to redeem all of its existing 6.75% Notes, together with accrued interest, related premiums, fees and expenses and recorded a charge for the loss on redemption of such notes of $33,298, including write offs of unamortized original issue premium and debt issuance costs. Remaining proceeds were used for general corporate purposes, including funding of deferred acquisition consideration.

The 6.50% Notes are guaranteed on a senior unsecured basis by all of MDC’s existing and future restricted subsidiaries that guarantee, or are co-borrowers under or grant liens to secure, the Credit Agreement. The 6.50% Notes are unsecured and unsubordinated obligations of MDC and rank (i) equally in right of payment with all of MDC’s or any Guarantor’s existing and future senior indebtedness, (ii) senior in right of payment to MDC’s or any Guarantor’s existing and future subordinated indebtedness, (iii) effectively subordinated to all of MDC’s or any Guarantor’s existing and future secured indebtedness to the extent of the collateral securing such indebtedness, including the Credit Agreement, and (iv) structurally subordinated to all existing and future liabilities of MDC’s subsidiaries that are not Guarantors.

MDC may, at its option, redeem the 6.50% Notes in whole at any time or in part from time to time, on and after May 1, 2019 (i) at a redemption price of 104.875% of the principal amount thereof if redeemed during the twelve-month period beginning on May 1, 2019, (ii) at a redemption price of 103.250% of the principal amount thereof if redeemed during the twelve-month period beginning on May 1, 2020, (iii) at a redemption price of 101.625% of the principal amount thereof if redeemed during the twelve-month period beginning on May 1, 2021, and (iv) at a redemption price of 100% of the principal amount thereof if redeemed on May 1, 2022 and thereafter.

Prior to May 1, 2019, MDC may, at its option, redeem some or all of the 6.50% Notes at a price equal to 100% of the principal amount of the 6.50% Notes plus a “make whole” premium and accrued and unpaid interest. MDC may also redeem, at its option, prior to May 1, 2019, up to 35% of the 6.50% Notes with the proceeds from one or more equity offerings at a redemption price of 106.50% of the principal amount thereof.

If MDC experiences certain kinds of changes of control (as defined in the Indenture), holders of the 6.50% Notes may require MDC to repurchase any 6.50% Notes held by them at a price equal to 101% of the principal amount of the 6.50% Notes plus accrued and unpaid interest. In addition, if MDC sells assets under certain circumstances, it must apply the proceeds from such sale and offer to repurchase the 6.50% Notes at a price equal to 100% of the principal amount plus accrued and unpaid interest.

The Indenture includes covenants that, among other things, restrict MDC’s ability and the ability of its restricted subsidiaries (as defined in the Indenture) to incur or guarantee additional indebtedness; pay dividends on or redeem or repurchase the capital stock of MDC; make certain types of investments; create restrictions on the payment of dividends or other amounts from MDC’s restricted subsidiaries; sell assets; enter into transactions with affiliates; create liens; enter into sale and leaseback transactions; and consolidate or merge with or into, or sell substantially all of MDC’s assets to, another person. These covenants are subject to a number of important limitations and exceptions. The 6.50% Notes are also subject to customary events of default, including a cross-payment default and cross-acceleration provision.

Redemption of 6.75% Senior Notes Due 2020

On March 23, 2016, the Company redeemed the 6.75% Notes in whole at a redemption price of 103.375% of the principal amount thereof with the proceeds from the issuance of the 6.50% Notes.

Revolving Credit Agreement

On March 20, 2013, MDC, Maxxcom Inc. (a subsidiary of MDC) and each of their subsidiaries party thereto entered into an amended and restated $225 million senior secured revolving credit agreement due 2018 (the “Credit Agreement”) with Wells Fargo Capital Finance, LLC, as agent, and the lenders from time to time party thereto. Advances under the Credit Agreement will be

43

used for working capital and general corporate purposes, in each case pursuant to the terms of the Credit Agreement. Capitalized terms used in this section and not otherwise defined have the meanings set forth in the Credit Agreement.

Effective October 23, 2014, MDC, Maxxcom Inc. and each of their subsidiaries entered into an amendment of its Credit Agreement. The amendment: (i) expanded the commitments under the facility by $100 million, from $225 million to $325 million; (ii) extended the date by an additional eighteen months to September 30, 2019; (iii) reduced the base borrowing interest rate by 25 basis points (the applicable margin for borrowing is 1.00% in the case of Base Rate Loans and 1.75% in the case of LIBOR Rate Loans) ; and (iv) modified certain covenants to provide the Company with increased flexibility to fund its continued growth and other general corporate purposes.

Effective May 3, 2016, MDC and its subsidiaries entered into an additional amendment to its Credit Agreement. The amendment: (i) extends the date by an additional nineteen months to May 3, 2021; (ii) reduces the base borrowing interest rate by 25 basis points; (iii) provides the Company the ability to borrow in foreign currencies; and (iv) certain other modifications to provide additional flexibility in operating the Company’s business.

Advances under the Credit Agreement bear interest as follows: (a)(i) Non-Prime Rate Loans bear interest at the Non-Prime Rate and (ii) all other Obligations bear interest at the Prime Rate, plus (b) an applicable margin. The applicable margin for borrowing is 1.50% in the case of Non-Prime Rate Loans and Prime Rate Loans that are European Advances, and 0.75% on all other Obligations. In addition to paying interest on outstanding principal under the Credit Agreement, MDC is required to pay an unused revolver fee of 0.25% to lenders under the Credit Agreement in respect of unused commitments thereunder.

The Credit Agreement is guaranteed by substantially all of MDC’s present and future subsidiaries, other than immaterial subsidiaries and subject to customary exceptions. The Credit Agreement includes covenants that, among other things, restrict MDC’s ability and the ability of its subsidiaries to incur or guarantee additional indebtedness; pay dividends on or redeem or repurchase the capital stock of MDC; make certain types of investments; impose limitations on dividends or other amounts from MDC’s subsidiaries; incur certain liens, sell or otherwise dispose of certain assets; enter into transactions with affiliates; enter into sale and leaseback transactions; and consolidate or merge with or into, or sell substantially all of MDC’s assets to, another person. These covenants are subject to a number of important limitations and exceptions. The Credit Agreement also contains financial covenants, including a total leverage ratio, a senior leverage ratio, a fixed charge coverage ratio and a minimum earnings level (each as more fully described in the Credit Agreement). The Credit Agreement is also subject to customary events of default.

The foregoing descriptions of the Indenture and the Credit Agreement do not purport to be complete and are qualified in their entirety by reference to the full text of the agreements.

Debt, net of debt issuance costs, as of December 31, 2016 was $936.4 million, an increase of $213.4 million, compared with $723.0 million outstanding at December 31, 2015. This increase in debt was a result of proceeds received from the 6.50% Notes of $900.0 million and net borrowings under the Credit Agreement of $54.4 million, partially offset by the repayment of the 6.75% Notes of $735.0 million and additional incremental debt issuance costs, net of amortization of $5.8 million. At December 31, 2016, approximately $266.2 million of commitments under the Credit Agreement were undrawn.

The Company is currently in compliance with all of the terms and conditions of the Credit Agreement, and management believes, based on its current financial projections, that the Company will be in compliance with its covenants over the next twelve months.

If the Company loses all or a substantial portion of its lines of credit under the Credit Agreement, or if the Company uses the maximum available amount under the Credit Agreement, it will be required to seek other sources of liquidity. If the Company were unable to find these sources of liquidity, for example through an equity offering or access to the capital markets, the Company’s ability to fund its working capital needs and any contingent obligations with respect to acquisitions and redeemable noncontrolling interests would be adversely affected.

Pursuant to the Credit Agreement, the Company must comply with certain financial covenants including, among other things, covenants for (i) senior leverage ratio, (ii) total leverage ratio, (iii) fixed charges ratio, and (iv) minimum earnings before interest, taxes and depreciation and amortization, in each case as such term is specifically defined in the Credit Agreement.

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For the period ended December 31, 2016, the Company’s calculation of each of these covenants, and the specific requirements under the Credit Agreement, respectively, were calculated based on the trailing twelve months as follows:

	December 31, 2016
Total Senior Leverage Ratio	0.28
Maximum per covenant	2.00
Total Leverage Ratio	5.03
Maximum per covenant	5.50
Fixed Charges Ratio	1.95
Minimum per covenant	1.00
Earnings before interest, taxes, depreciation and amortization	$190.4 million
Minimum per covenant	$105.0 million

These ratios are not based on generally accepted accounting principles and are not presented as alternative measures of operating performance or liquidity. Some of these measures include, among other things, pro forma adjustments for acquisitions, one-time charges, and other items, as defined in the Credit Agreement. They are presented here to demonstrate compliance with the covenants in the Credit Agreement, as non-compliance with such covenants could have a material adverse effect on the Company.

Disclosure of Contractual Obligations and Other Commercial Commitments

The following table provides a payment schedule of present and future obligations. Management anticipates that the obligations outstanding at December 31, 2016 will be repaid with new financing, equity offerings and/or cash flow from operations (in thousands):

	Payments Due by Period
Contractual Obligations	Total		Less than 1 Year		1 – 3 Years		3 – 5 Years		After 5 Years
Indebtedness (1)	$	954,425	$	—	$	—	$	54,425	$	900,000
Capital lease obligations	431		228		177		26		—
Operating leases	391,847		57,294		107,303		92,765		134,485
Interest on debt	429,040		58,520		117,018		117,002		136,500
Deferred acquisition consideration (2)	229,564		108,290		80,452		40,822		—
Other long-term liabilities	14,176		5,530		7,721		925		—
Total contractual obligations (3)	$	2,019,483	$	229,862	$	312,671	$	305,965	$	1,170,985

(1) Indebtedness includes $54,425 of borrowings under the Credit Agreement due in 2021.

(2) Deferred acquisition consideration excludes future payments with an estimated fair value of $36,437 that are contingent upon employment terms as well as financial performance and will be expensed as stock-based compensation over the required retention period. Of this amount, the Company estimates $3,535 will be paid in less than one year, $11,717 will be paid in one to three years, $18,077 will be paid in three to five years, and $3,108 will be paid after five years.

(3) Pension obligations of $16,257 are not included since the timing of payments are not known.

The following table provides a summary of other commercial commitments (in thousands) at December 31, 2016:

	Payments Due by Period
Other Commercial Commitments	Total		Less than 1 Year		1 – 3 Years		3 – 5 Years		After 5 Years
Lines of credit	$	—	$	—	$	—	$	—	$	—
Letters of credit	$	4,360	4,360		—		—		—
Total Other Commercial Commitments	$	4,360	$	4,360	$	—	$	—	$	—

For further detail on MDC’s long-term debt principal and interest payments, see Note 11 Debt and Note 16 Commitments, Contingents and Guarantees of the Company’s consolidated financial statements included in this Amendment No. 1 on Form 10-K/A. See also “Deferred Acquisition Consideration” and “Other-Balance Sheet Commitments” below.

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Capital Resources

At December 31, 2016, there were $54.4 million of borrowings under the Credit Agreement and $4.4 million of undrawn outstanding letters of credit. Cash and undrawn commitments available to support the Company’s future cash requirements at December 31, 2016 was approximately $294.1 million.

The Company expects to incur approximately $28.0 million of capital expenditures in 2017. Such capital expenditures are expected to include leasehold improvements, furniture and fixtures, and computer equipment at certain of the Company’s operating subsidiaries. The Company intends to maintain and expand its business using cash from operating activities, together with funds available under the Credit Agreement. Management believes that the Company’s cash flow from operations, funds available under the Credit Agreement and other initiatives will be sufficient to meet its ongoing working capital, capital expenditures and other cash needs over the next twelve months. If the Company spends capital on future acquisitions, management expects that the Company may need to obtain additional financing in the form of debt and/or equity financing.

Other-Balance Sheet Commitments

Media and Production

The Company’s agencies enter into contractual commitments with media providers and agreements with production companies on behalf of our clients at levels that exceed the revenue from services. Some of our agencies purchase media for clients and act as an agent for a disclosed principal. These commitments are included in accounts payable when the media services are delivered by the media providers. MDC takes precautions against default on payment for these services and has historically had a very low incidence of default. MDC is still exposed to the risk of significant uncollectible receivables from our clients. The risk of a material loss could significantly increase in periods of severe economic downturn.

Deferred Acquisition Consideration

Acquisitions of a business, or a majority interest of a business, by the Company may include future additional contingent purchase price obligations payable to the seller, which are recorded as deferred acquisition consideration liabilities on the Company’s balance sheet at the estimated acquisition date fair value and are remeasured at each reporting period. These contingent purchase obligations are generally payable within a one to five-year period following the acquisition date, and are based on achievement of certain thresholds of future earnings and, in certain cases, the rate of growth of those earnings. The actual amount that the Company pays in connection with such contingent purchase obligations may differ materially from this estimate.

In connection with such contingent purchase obligations, the Company may have the option or, in some cases, the requirement, to purchase the remaining interest. Generally, the Company’s option or requirement to purchase the incremental ownership interest coincides with the final payment of the purchase price obligation related to the Company’s initial majority acquisition. If the Company subsequently acquires the remaining incremental ownership interest, the acquisition fair value of the purchase price, net of any cash paid at closing, is recorded as a liability, any noncontrolling interests are removed and any difference between the purchase price and noncontrolling interest is recorded to additional paid-in capital.

The deferred acquisition consideration and redeemable noncontrolling interests are impacted by (i) present value adjustments to accrete the acquisition date fair value of the obligation to the estimated future payment amount at the reporting date, (ii) changes in the estimated future payment obligation resulting from the underlying subsidiary’s financial performance, and (iii) amendments to purchase agreements of previously acquired incremental ownership interests. As it relates to the acquisition of Forsman & Bodenfors AB completed in 2016, the deferred acquisition is impacted by the market performance of the Company’s stock price. Redeemable noncontrolling interests are not adjusted below the related initial redemption value. Significant changes in actual results and metrics, such as profit margins and growth rates among others, relative to expectations would result in a higher or lower redemption value adjustment. In addition, the deferred acquisition consideration and redeemable noncontrolling interests could be materially impacted by future acquisition activity, if any, and the particular structure of such acquisitions.

As a result, and due to the factors noted above, the Company does not have a view of the future trajectory and quantification of potential changes in the deferred acquisition consideration and redeemable noncontrolling interests.

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The following table presents the changes in the deferred acquisition consideration by segment for the years ended December 31, 2016 and 2015:

	December 31, 2016
	Global Integrated Agencies			Domestic Creative Agencies			Specialist Communications			Media Services			All Other			Total
Beginning Balance of contingent payments	$	157,444		$	4,240		$	42,524		$	7,940		$	94,586		$	306,734
Payments (1)	(36,270		)	(3,187		)	(20,544		)	(1,369		)	(43,799		)	(105,169		)
Additions (2)	15,618			—			514			—			—			16,132
Redemption value adjustments (3)	16,225			(281		)	(3,465		)	573			878			13,930
Other (4)	(2,360		)	—			(4,052		)	—			—			(6,412		)
Foreign translation adjustment	(1,903		)	—			(6		)	—			1,448			(461		)
Ending Balance of contingent payments	148,754			772			14,971			7,144			53,113			224,754
Fixed payments (5)	2,922			—			551			308			1,029			4,810
	$	151,676		$	772		$	15,522		$	7,452		$	54,142		$	229,564

	December 31, 2015
	Global Integrated Agencies			Domestic Creative Agencies			Specialist Communications			Media Services			All Other			Total
Beginning Balance of contingent payments	$	54,209		$	6,223		$	45,276		$	17,744		$	48,775		$	172,227
Payments	(30,842		)	(1,413		)	(17,148		)	(13,981		)	(13,917		)	(77,301		)
Additions (2)	115,480			—			17,176			7,183			34,691			174,530
Redemption value adjustments	18,532			(570		)	(2,780		)	(3,006		)	29,460			41,636
Foreign translation adjustment	65			—			—			—			(4,423		)	(4,358		)
Ending Balance of contingent payments	157,444			4,240			42,524			7,940			94,586			306,734
Fixed payments	23,564			—			5,209			8,914			2,683			40,370
	$	181,008		$	4,240		$	47,733		$	16,854		$	97,269		$	347,104

(1) For the year ended December 31, 2016, payments include $10.5 million of deferred acquisition consideration settled through the issuance of 691,559 MDC Class A subordinate voting shares in lieu of cash.

(2) Additions are the initial estimated deferred acquisition payments of new acquisitions and step-up transactions completed within that fiscal period.

(3) Redemption value adjustments are fair value changes from the Company’s initial estimates of deferred acquisition payments, including the accretion of present value and stock-based compensation charges relating to acquisition payments that are tied to continued employment. For the year ended December 31, 2016, redemption value adjustments include $2.4 million of expense related to 100,000 MDC Class A subordinate voting shares to be issued.

(4) Other is comprised of (i) $2.4 million transfered to shares to be issued related to 100,000 MDC Class A subordinate voting shares that are contingent on specific thresholds of future earnings that management expects to be attained; and, (ii) $4.1 million of contingent payments eliminated through the acquisition of incremental ownership interests.

(5) The reduction in the fixed payments for the year ended December 31, 2016, was attributable to payments of approximately $40.1 million, partially offset by redemption value and foreign translation adjustments.

Deferred acquisition consideration excludes future payments with an estimated fair value of $36.4 million that are contingent upon employment terms as well as financial performance and will be expensed as stock-based compensation over the required retention period. Of this amount, the Company estimates $3.5 million will be paid in the current year, $11.7 million will be paid in one to three years, $18.1 million will be paid in three to five years, and $3.1 million will be paid after five years.

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Put Rights of Subsidiaries’ Noncontrolling Shareholders

As noted above, noncontrolling shareholders in certain subsidiaries have the right in certain circumstances to require the Company to acquire the remaining ownership interests held by them. The noncontrolling shareholders’ ability to exercise any such option right is subject to the satisfaction of certain conditions, including conditions requiring notice in advance of exercise and specific employment termination conditions. In addition, these rights cannot be exercised prior to specified staggered exercise dates. The exercise of these rights at their earliest contractual date would result in obligations of the Company to fund the related amounts during 2017 to 2023. It is not determinable, at this time, if or when the owners of these rights will exercise all or a portion of these rights.

The amount payable by the Company in the event such contractual rights are exercised is dependent on various valuation formulas and on future events, such as the average earnings of the relevant subsidiary through that date of exercise, the growth rate of the earnings of the relevant subsidiary during that period, and, in some cases, the currency exchange rate at the date of payment.

Management estimates, assuming that the subsidiaries owned by the Company at December 31, 2016 perform over the relevant future periods at their trailing twelve-month earnings level, that these rights, if all are exercised, could require the Company to pay an aggregate amount of approximately $12.5 million to the owners of such rights in future periods to acquire such ownership interests in the relevant subsidiaries. Of this amount, the Company is entitled, at its option, to fund approximately $0.1 million by the issuance of share capital.

In addition, the Company is obligated under similar put option rights to pay an aggregate amount of approximately $43.1 million only upon termination of such owner's employment with the applicable subsidiary or death.

The amount the Company would be required to pay to the holders should the Company acquire the remaining ownership interests is $4.6 million less than the initial redemption value recorded in redeemable noncontrolling interests.

The Company intends to finance the cash portion of these contingent payment obligations using available cash from operations, borrowings under the Credit Agreement (and refinancings thereof), proceeds from the anticipated closing of the sale of the Preference Shares, and, if necessary, through the incurrence of additional debt and/or issuance of additional equity. The ultimate amount payable and the incremental operating income in the future relating to these transactions will vary because it is dependent on the future results of operations of the subject businesses and the timing of when these rights are exercised. Approximately $3.2 million of the estimated $12.5 million that the Company would be required to pay subsidiaries noncontrolling shareholders upon the exercise of outstanding contractual rights, relates to rights exercisable within the next twelve months. Upon the settlement of the total amount of such options to purchase, the Company estimates that it would receive incremental operating income before depreciation and amortization of $4.9 million.

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The following table summarizes the potential timing of the consideration and incremental operating income before depreciation and amortization based on assumptions as described above.

Consideration(4)	2017		2018		2019		2020		2021 & Thereafter		Total
	(Dollars in Millions)
Cash	$	3.2	$	3.0	$	2.0	$	2.6	$	1.6	$	12.4
Shares	—		—		0.1		—		—		0.1
	$	3.2	$	3.0	$	2.1	$	2.6	$	1.6	$	12.5	(1)
Operating income before depreciation and amortization to be received (2)	$	2.8	$	0.9	$	0.1	$	1.1	$	—	$	4.9
Cumulative operating income before depreciation and amortization (3)	$	2.8	$	3.7	$	3.8	$	4.9	$	4.9			(5)

(1) This amount is in addition to $43.1 million of (i) options to purchase only exercisable upon termination not within the control of the Company, or death, and (ii) the excess of the initial redemption value recorded in redeemable noncontrolling interests over the amount the Company would be required to pay to the holders should the Company acquire the remaining ownership interests.

(2) This financial measure is presented because it is the basis of the calculation used in the underlying agreements relating to the put rights and is based on actual operating results. This amount represents additional amounts to be attributable to MDC Partners Inc., commencing in the year the put is exercised.

(3) Cumulative operating income before depreciation and amortization represents the cumulative amounts to be received by the Company.

(4) The timing of consideration to be paid varies by contract and does not necessarily correspond to the date of the exercise of the put.

(5) Amounts are not presented as they would not be meaningful due to multiple periods included.

Guarantees

Generally, the Company has indemnified the purchasers of certain of its assets in the event that a third party asserts a claim against the purchaser that relates to a liability retained by the Company. These types of indemnification guarantees typically extend for several years. Historically, the Company has not made any significant indemnification payments under such agreements and no provision has been accrued in the accompanying consolidated financial statements with respect to these indemnification guarantees. The Company continues to monitor the conditions that are subject to guarantees and indemnifications to identify whether it is probable that a loss has occurred, and would recognize any such losses under any guarantees or indemnifications in the period when those losses are probable and estimable.

Transactions With Related Parties

Employee Relationships

Scott L. Kauffman is Chairman and Chief Executive Officer of the Company. His daughter, Sarah Kauffman, has been employed by Partner Firm kbs since July 2011, and currently acts as Director of Operations, Attention Partners. In 2016 and 2015, her total compensation, including salary, bonus and other benefits, totaled approximately $145,000 and $125,000, respectively. Her compensation is commensurate with that of her peers.

The Company’s Board of Directors, through its Audit Committee, reviewed and approved this related party transaction.

Critical Accounting Policies

The following summary of accounting policies has been prepared to assist in better understanding the Company’s consolidated financial statements and the related management discussion and analysis. Readers are encouraged to consider this information together with the Company’s consolidated financial statements and the related notes to the consolidated financial statements as included herein for a more complete understanding of accounting policies discussed below.

Estimates.  The preparation of the Company’s financial statements in conformity with “U.S. GAAP,” requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities (including goodwill, intangible assets, redeemable noncontrolling interests and deferred acquisition consideration), valuation allowances for receivables, deferred income tax assets and stock-based compensation, as well as the reported amounts of revenue and expenses during the reporting period. The statements are evaluated on an ongoing basis and estimates are based on historical experience,

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current conditions and various other assumptions believed to be reasonable under the circumstances. Actual results can differ from those estimates, and it is possible that the differences could be material.

Revenue Recognition.  The Company’s revenue recognition policies are as required by the Revenue Recognition topics of the Financial Accounting Standards Board (the “FASB”) Accounting Standards Codification (“ASC”). The Company earns revenue from agency arrangements in the form of retainer fees or commissions; from short-term project arrangements in the form of fixed fees or per diem fees for services; and from incentives or bonuses. A small portion of the Company’s contractual arrangements with clients includes performance incentive provisions, which allow the Company to earn additional revenues as a result of its performance relative to both quantitative and qualitative goals. The Company records revenue net of sales and other taxes, when persuasive evidence of an arrangement exists, services are provided or upon delivery of the products when ownership and risk of loss has transferred to the customer, the selling price is fixed or determinable and collection of the resulting receivable is reasonably assured.

The Company recognizes the incentive portion of revenue under these arrangements when specific quantitative goals are assured, or when the Company’s clients determine performance against qualitative goals has been achieved. In all circumstances, revenue is only recognized when collection is reasonably assured. The Company records revenue net of sales and other taxes due to be collected and remitted to governmental authorities. In the majority of the Company’s businesses, the Company acts as an agent and records revenue equal to the net amount retained, when the fee or commission is earned. In certain arrangements, the Company acts as principal and contracts directly with suppliers for third party media and production costs. In these arrangements, revenue is recorded at the gross amount billed. Additional information about our revenue recognition policy appears in Note 2 of the Notes to the Consolidated Financial Statements included herein.

Business Combinations.  The Company has historically made, and expects to continue to make, selective acquisitions of marketing communications businesses. In making acquisitions, the price paid is determined by various factors, including service offerings, competitive position, reputation and geographic coverage, as well as prior experience and judgment. Due to the nature of advertising, marketing and corporate communications services companies, the companies acquired frequently have significant identifiable intangible assets, which primarily consist of customer relationships. The Company has determined that certain intangibles (trademarks) have an indefinite life, as there are no legal, regulatory, contractual, or economic factors that limit the useful life.

Valuations of acquired companies are based on a number of factors, including specialized know-how, reputation, competitive position and service offerings. Our acquisition strategy has been to focus on acquiring the expertise of an assembled workforce in order to continue building upon the core capabilities of our various strategic business platforms to better serve our clients. Consistent with our acquisition strategy and past practice of acquiring a majority ownership position, most acquisitions include an initial payment at the time of closing and provide for future additional contingent purchase price payments. Contingent purchase price obligations for these transactions are recorded as a liability and are derived from the performance of the acquired entity and are based on predetermined formulas. These various contractual valuation formulas may be dependent on future events, such as the growth rate of the earnings of the relevant subsidiary during the contractual period, and, in some cases, the currency exchange rate on the date of payment. The liability is adjusted quarterly based on changes in current information affecting each subsidiary’s current operating results and the impact this information will have on future results included in the calculation of the estimated liability. In addition, changes in various contractual valuation formulas as well as adjustments to present value impact quarterly adjustments. These adjustments are recorded in results of operations. In addition, certain acquisitions also include options to purchase additional equity ownership interests. The estimated value of these interests are recorded as redeemable noncontrolling interests.

For each of the Company’s acquisitions, a detailed review is undertaken to identify other intangible assets and a valuation is performed for all such identified assets. The Company uses several market participant measurements to determine estimated value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies. Like most service businesses, a substantial portion of the intangible asset value that the Company acquires is the specialized know-how of the workforce, which is treated as part of goodwill and is not required to be valued separately. The majority of the value of the identifiable intangible assets that the Company acquires is derived from customer relationships, including the related customer contracts, as well as trade names. In executing our acquisition strategy, one of the primary drivers in identifying and executing a specific transaction is the existence of, or the ability to, expand our existing client relationships. The expected benefits of our acquisitions are typically shared across multiple agencies and regions.

Acquisitions, Goodwill and Other Intangibles.  The Company reviews goodwill and other intangible assets with indefinite lives not subject to amortization for impairment annually as of October 1st of each year or more frequently if indicators of potential impairment exist.

For the annual impairment testing the Company has the option of assessing qualitative factors to determine whether it is more likely than not that the carrying amount of a reporting unit exceeds its fair value or performing the two-step goodwill impairment test. Qualitative factors considered in the assessment include industry and market considerations, the competitive environment,

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overall financial performance, changing cost factors such as labor costs, and other factors specific to each reporting unit such as change in management or key personnel.

If the Company elects to perform the qualitative assessment and concludes that it is more likely than not that the fair value of the reporting unit is more than its carrying amount, then goodwill is not considered impaired and the two-step goodwill impairment test is not necessary. For reporting units for which the qualitative assessment concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount and for reporting units for which the qualitative assessment is not performed, the Company will perform the first step of the goodwill impairment test, which compares the fair value of the reporting unit to its carrying amount. If the fair value of the reporting unit exceeds the carrying amount of the net assets assigned to that reporting unit, goodwill is not considered impaired and additional analysis is not required. However, if the carrying amount of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, then the second step of the goodwill impairment test must be performed to determine the implied fair value of the reporting unit’s goodwill.

Determining the fair value of a reporting unit involves the use of significant estimates and assumptions. The Company’s goodwill impairment test uses the income approach to estimate a reporting unit’s fair value. The income approach is based on a discounted cash flow (“DCF”) method, which requires the exercise of significant judgment, including judgment about the amount and timing of expected future cash flows, assumed terminal value and appropriate discount rates.

The DCF estimates incorporate expected cash flows that represent a spectrum of the amount and timing of possible cash flows of each reporting unit from a market participant perspective. The expected cash flows are developed as part of the Company’s routine long-range planning process using projections of revenue and expenses and related cash flows based on assumed long-term growth rates and demand trends and appropriate discount rates based on a reporting units weighted average cost of capital (“WACC”) as determined by considering the observable WACC of comparable companies and factors specific to the reporting unit (for example, size). The terminal value is estimated using a constant growth method which requires an assumption about the expected long-term growth rate. The estimates are based on historical data and experience, industry projections, economic conditions, and the Company’s expectations. The assumptions used for the long-term growth rate and WACC in the annual goodwill impairment tests are as follows:

	October 1,
	2016	2015
Long-term growth rate	3%	3%
WACC	10.39% - 13.45%	8.92% - 11.95%

The Company’s reporting units vary in size with respect to revenue and operating profits. These differences drive variations in fair value of the reporting units. In addition, these differences as well as differences in book value, including goodwill, cause variations in the amount by which fair value exceeds the carrying amount of the reporting units. The reporting unit goodwill balances vary by reporting unit primarily because it relates specifically to the Partner Firm’s goodwill which was determined at the date of acquisition.

Under the second step of the goodwill impairment test, the Company utilizes both a market approach and income approach to estimate the implied fair value of a reporting unit’s goodwill. For the market approach, the Company utilizes both the guideline public company method and the precedent transaction method. For the income approach, the Company utilizes a DCF method. The Company weights the market and income approaches to arrive at an implied fair value of goodwill. If the Company determines that the carrying amount of a reporting unit’s goodwill exceeds its implied fair value, an impairment loss equal to the difference is recorded.

For the 2015 annual goodwill impairment testing, the Company had 13 reporting units. All of the reporting units were subject to the two-step test. As the fair value of all reporting units were in excess of their respective carrying amounts, there was no impairment of goodwill. The range of the excess of the fair value over the carrying amount was from 7% to over 100%. The Company performed a sensitivity analysis which included a 1% increase to the WACC. Based on the results of that analysis, one reporting unit, which was comprised of the marketing experiential businesses, was at risk of failing.

The Company noted no significant events or conditions during the first and second quarter of 2016 that would have affected the conclusions from the annual assessment. During the third quarter of 2016, the Company changed its operating segments, as a result of the management structure change as discussed in Note 14, which resulted in a corresponding change to the Company’s reporting units. Each Partner Firm now represents an operating segment as well as a reporting unit for goodwill impairment testing. As a result of the changes in the reporting units, the Company performed further analysis to assess whether the results of the 2015 testing would have been different had it been performed at the Partner Firm level. This change in operating segments, coupled with a decline in operating performance required the Company to perform interim goodwill testing on one of its experiential reporting units. Additionally, a triggering event occurred during the third quarter of 2016 that required the Company to perform interim goodwill testing on one non-material reporting unit. These two reporting units failed the first step of the goodwill impairment

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testing, and the second step of the goodwill impairment testing resulted in a partial impairment of goodwill of $27,893 and $1,738 relating to the experiential reporting unit and non-material reporting unit, respectively. See Note 8 for further information.

For the 2016 annual goodwill impairment test, the Company had 31 reporting units, all of which were subject to the two-step test.

For the 2016 annual goodwill impairment test, the carrying amount of one of the Company’s strategic communications reporting unit exceeded its fair value and the second step of the goodwill impairment test was performed, resulting in a partial impairment of goodwill of $18,893. The fair value for all other reporting units were in excess of their respective carrying amounts and as a result there was no additional impairment of goodwill. The range of the excess of the fair value over the carrying amount was from 5% to over 100%. The Company performed a sensitivity analysis which included a 1% increase to the WACC. Based on the results of that analysis, the non-material reporting unit for which a partial impairment of goodwill was recorded during the third quarter of 2016 would be at risk of failing; however, there were no events or circumstances that would more likely than not reduce the fair value of such reporting unit below its respective carrying value between the interim and annual goodwill impairment testing performed.

The Company believes the estimates and assumptions used in the calculations are reasonable. However, if there was an adverse change in the facts and circumstances, then an impairment charge may be necessary in the future. The Company will monitor its reporting units to determine if there is an indicator of potential impairment. Should the fair value of any of the Company’s reporting units fall below its carrying amount because of reduced operating performance, market declines, changes in the discount rate, or other conditions, charges for impairment may be necessary. Subsequent to the annual impairment test at October 1, 2016, there were no events or circumstances that triggered the need for an interim impairment test.

Redeemable Noncontrolling Interests.  The noncontrolling interest shareholders of certain subsidiaries have the right to require the Company to acquire their ownership interests under certain circumstances pursuant to a contractual arrangement and the Company has similar call options under the same contractual terms. The amount of consideration under the put and call rights is not a fixed amount, but rather is dependent upon various valuation formulas and on future events, such as the average earnings of the relevant subsidiary through the date of exercise and the growth rate of the earnings of the relevant subsidiary through the date of exercise.

Allowance for Doubtful Accounts. Trade receivables are stated less allowance for doubtful accounts. The allowance represents estimated uncollectible receivables usually due to customers’ potential insolvency. The allowance includes amounts for certain customers where risk of default has been specifically identified.

Income Tax Valuation Allowance. The Company records a valuation allowance against deferred income tax assets when management believes it is more likely than not that some portion or all of the deferred income tax assets will not be realized. Management considers factors such as the reversal of deferred income tax liabilities, projected future taxable income, the character of the income tax asset, tax planning strategies, changes in tax laws and other factors. A change to any of these factors could impact the estimated valuation allowance and income tax expense.

Interest Expense.  Interest expense primarily consists of the cost of borrowing on the Company’s previously outstanding 6.75% Notes; the Company’s 6.50% Notes; and the Company’s revolving Credit Agreement. The Company uses the effective interest method to amortize the deferred financing costs on the 6.50% Notes and previously outstanding 6.75% Notes as well as the original issue premium on the previously outstanding 6.75% Notes and the straight-line method to amortize the deferred financing costs related to the revolving Credit Agreement.

Stock-based Compensation.  The fair value method is applied to all awards granted, modified or settled. Under the fair value method, compensation cost is measured at fair value at the date of grant and is expensed over the service period that is the award’s vesting period. Awards based on performance conditions are recorded as compensation expense when the performance conditions are expected to be met. When awards are exercised, share capital is credited by the sum of the consideration paid together with the related portion previously credited to additional paid-in capital when compensation costs were charged against income or acquisition consideration. Stock-based awards that are settled in cash or may be settled in cash at the option of employees are recorded as liabilities. The measurement of the liability and compensation cost for these awards is based on the fair value of the award, and is recorded into operating income over the service period, that is the vesting period of the award. Changes in the Company’s payment obligation are revalued each reporting period and recorded as compensation cost over the service period in operating income.

The Company treats amounts paid by shareholders to employees as a stock-based compensation charge with a corresponding credit to additional paid-in capital.

From time to time, certain acquisitions and step-up transactions include an element of compensation related payments. The Company accounts for those payments as stock-based compensation.

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New Accounting Pronouncements

Information regarding new accounting guidance can be found in Note 17 of the Notes to the Consolidated Financial Statements included herein.

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Item 7A. Quantitative and Qualitative Disclosures About Market Risk

The Company is exposed to market risk related to interest rates, and foreign currencies and impairment risk.

Debt Instruments:  At December 31, 2016, the Company’s debt obligations consisted of amounts outstanding under its Credit Agreement and the Senior Notes. The Senior Notes bear a fixed 6.50% interest rate. The Credit Agreement bears interest at variable rates based upon the Eurodollar rate, U.S. bank prime rate and U.S. base rate, at the Company’s option. The Company’s ability to obtain the required bank syndication commitments depends in part on conditions in the bank market at the time of syndication. Given that there were $54.4 million borrowings under the Credit Agreement, as of December 31, 2016, a 1% increase or decrease in the weighted average interest rate, which was 4.50% at December 31, 2016, would have an interest impact of $0.5 million.

Foreign Exchange:  While the Company primarily conducts business in markets that use the U.S. dollar, the Canadian dollar, the Euro and the British Pound, its non-U.S. operations transact business in numerous different currencies. The Company’s results of operations are subject to risk from the translation to the U.S. dollar of the revenue and expenses of its non-U.S. operations. The effects of currency exchange rate fluctuations on the translation of the Company’s results of operations are discussed in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and in Note 2 of the Notes to the Consolidated Financial Statements. For the most part, revenues and expenses incurred related to the non-U.S. operations are denominated in their functional currency. This minimizes the impact that fluctuations in exchange rates will have on profit margins. Intercompany debt which is not intended to be repaid is included in cumulative translation adjustments. Translation of intercompany debt, which is not intended to be repaid, is included in cumulative translation adjustments. Translation of current intercompany balances are included in net earnings. The Company generally does not enter into foreign currency forward exchange contracts or other derivative financial instruments to hedge the effects of adverse fluctuations in foreign currency exchange rates.

The Company is exposed to foreign currency fluctuations relating to its intercompany balances between the U.S. and Canada. For every one cent change in the foreign exchange rate between the U.S. and Canada, the impact to the Company’s financial statements would be approximately $3.7 million.

Impairment Risk:  At December 31, 2016, the Company had goodwill of $844.8 million and other intangible assets of $85.1 million. The Company will assess the net realizable value of the goodwill and other intangible assets on a regular basis, but at least annually on October 1, to determine if the Company incurs any declines in the value of its capital investment. As discussed in Note 2 and Note 8 of the Notes to the Consolidated Financial Statements included herein, for the year ended December 31, 2016, the Company recorded goodwill impairment of $48.5 million. Additionally, the Company may incur additional impairment charges in future periods.

54

Item 8. Financial Statements and Supplementary Data

MDC PARTNERS INC.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

	Page
Financial Statements:
Report of Independent Registered Public Accounting Firm	56
Consolidated Statements of Operations for each of the Three Years in the Period Ended December 31, 2016	57
Consolidated Statements of Comprehensive Loss for each of the Three Years in the Period Ended December 31, 2016	58
Consolidated Balance Sheets as of December 31, 2016 and 2015	59
Consolidated Statements of Cash Flows for each of the Three Years in the Period Ended December 31, 2016	60
Consolidated Statements of Shareholders’ Deficit for each of the Three Years in the Period Ended December 31, 2016	62
Notes to Consolidated Financial Statements	65
Financial Statement Schedules:
Schedule II — Valuation and Qualifying Accounts for each of the Three Years in the Period Ended December 31, 2016	111

55

Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders

MDC Partners Inc.

New York, New York

We have audited the accompanying consolidated balance sheets of MDC Partners Inc. as of December 31, 2016 and 2015 and the related consolidated statements of operations, comprehensive loss, shareholders’ deficit, and cash flows for each of the three years in the period ended December 31, 2016. These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the consolidated financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall consolidated financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of MDC Partners Inc. at December 31, 2016 and 2015, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2016, in conformity with accounting principles generally accepted in the United States of America.

As discussed in Note 2 to the financial statements, in 2016 the Company changed its methods of accounting related to the classification of deferred income taxes due to the adoption of Accounting Standards Update No. 2015-17 (Topic 740), Balance Sheet Classification of Deferred Taxes and the presentation of debt issuance costs due to the adoption of Accounting Standards Update No. 2015-03, Interest - Imputation of Interest.

As discussed in Note 14 to the financial statements, the accompanying consolidated financial statements have been restated to revise the Company's segment disclosure. Additionally, as discussed in Note 2, the accompanying consolidated financial statements have been restated to (i) change the presentation of book overdrafts on the Company's statements of cash flows for each of the three years in the period ended December 31, 2016, and (ii) adjust the Company's deferred tax liabilities on the Company's consolidated balance sheet as of December 31, 2016 and related consolidated statement of shareholders' deficit for the year ended December 31, 2016.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), MDC Partners Inc.’s internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) and our report dated August 31, 2017 expressed an unqualified opinion thereon.

/s/ BDO USA LLP

New York, New York

March 1, 2017, except for Notes 2 and 14 which is August 31, 2017

56

MDC PARTNERS INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(Thousands of United States Dollars, Except per Share Amounts)

	Years Ended December 31,
	2016			2015			2014
Revenue:
Services	$	1,385,785		$	1,326,256		$	1,223,512
Operating Expenses:
Cost of services sold	936,133			879,716			798,518
Office and general expenses	306,251			322,207			290,073
Depreciation and amortization	46,446			52,223			47,172
Goodwill impairment	48,524			—			—
	1,337,354			1,254,146			1,135,763
Operating income	48,431			72,110			87,749
Other Income (Expenses):
Other, net	414			7,238			689
Foreign exchange loss	(213		)	(39,328		)	(18,482		)
Interest expense and finance charges	(65,858		)	(57,903		)	(55,265		)
Loss on redemption of Notes	(33,298		)	—			—
Interest income	808			467			418
	(98,147		)	(89,526		)	(72,640		)
Income (loss) from continuing operations before income taxes and equity in earnings of non-consolidated affiliates	(49,716		)	(17,416		)	15,109
Income tax (benefit) expense	(9,404		)	3,761			9,776
Income (loss) from continuing operations before equity in earnings of non-consolidated affiliates	(40,312		)	(21,177		)	5,333
Equity in earnings (losses) of non-consolidated affiliates	(309		)	1,058			1,406
Income (loss) from continuing operations	(40,621		)	(20,119		)	6,739
Loss from discontinued operations attributable to MDC Partners Inc., net of taxes	—			(6,281		)	(21,260		)
Net loss	(40,621		)	(26,400		)	(14,521		)
Net income attributable to the noncontrolling interests	(5,218		)	(9,054		)	(6,890		)
Net loss attributable to MDC Partners Inc.	$	(45,839	)	$	(35,454	)	$	(21,411	)
Loss Per Common Share:
Basic and Diluted
Loss from continuing operations attributable to MDC Partners Inc. common shareholders	$	(0.89	)	$	(0.58	)	$	—
Discontinued operations attributable to MDC Partners Inc. common shareholders	—			(0.13		)	(0.43		)
Net loss attributable to MDC Partners Inc. common shareholders	$	(0.89	)	$	(0.71	)	$	(0.43	)
Weighted Average Number of Common Shares Outstanding:
Basic and Diluted	51,345,807			49,875,282			49,545,350
Stock-based compensation expense is included in the following line items above:
Cost of services sold	$	14,237		$	11,710		$	9,883
Office and general expenses	6,766			6,086			7,813
Total	$	21,003		$	17,796		$	17,696

The accompanying notes to the consolidated financial statements are an integral part of these statements.

57

MDC PARTNERS INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(Thousands of United States Dollars)

	Years Ended December 31,
	2016			2015			2014
Comprehensive Loss
Net loss	$	(40,621	)	$	(26,400	)	$	(14,521	)
Other comprehensive income (loss), net of applicable tax:
Foreign currency translation adjustment	(4,586		)	9,564			1,736
Benefit plan adjustment, net of income tax benefit, nil for 2016, nil for 2015, and income tax benefit of $1,112 for 2014	(3,101		)	(423		)	(10,403		)
Other comprehensive income (loss)	(7,687		)	9,141			(8,667		)
Comprehensive loss for the year	(48,308		)	(17,259		)	(23,188		)
Comprehensive income attributable to the noncontrolling interests	(5,612		)	(4,186		)	(5,178		)
Comprehensive loss attributable to MDC Partners Inc.	$	(53,920	)	$	(21,445	)	$	(28,366	)

The accompanying notes to the consolidated financial statements are an integral part of these statements.

58

MDC PARTNERS INC.

CONSOLIDATED BALANCE SHEETS

(Thousands of United States Dollars)

	December 31,
	2016			2015
ASSETS
Current Assets:
Cash and cash equivalents	$	27,921		$	61,458
Cash held in trusts	5,341			5,122
Accounts receivable, less allowance for doubtful accounts of $1,523 and $1,306	388,340			361,044
Expenditures billable to clients	33,118			44,012
Other current assets	34,862			22,728
Total Current Assets	489,582			494,364
Fixed assets, at cost, less accumulated depreciation of $105,134 and $96,554	78,377			63,557
Investment in non-consolidated affiliates	4,745			6,263
Goodwill	844,759			870,301
Other intangible assets, net	85,071			72,382
Deferred tax assets	41,793			29,748
Other assets	33,051			41,010
Total Assets	$	1,577,378		$	1,577,625
LIABILITIES, REDEEMABLE NONCONTROLLING INTERESTS, AND SHAREHOLDERS’ DEFICIT
Current Liabilities:
Accounts payable	$	251,456		$	359,568
Trust liability	5,341			5,122
Accruals and other liabilities	303,581			297,701
Advance billings	133,925			119,100
Current portion of long-term debt	228			470
Current portion of deferred acquisition consideration	108,290			130,400
Total Current Liabilities	802,821			912,361
Long-term debt, less current portion	936,208			728,413
Long-term portion of deferred acquisition consideration	121,274			216,704
Other liabilities	56,012			44,905
Deferred tax liabilities	110,359			101,863
Total Liabilities	2,026,674			2,004,246
Redeemable Noncontrolling Interests (Note 2)	60,180			69,471
Commitments, Contingencies and Guarantees (Note 16)
Shareholders’ Deficit:
Preferred shares, unlimited authorized, none issued	—			—
Class A Shares, no par value, unlimited authorized, 52,798,303 and 49,986,705 shares issued and outstanding in 2016 and 2015, respectively	317,783			269,841
Class B Shares, no par value, unlimited authorized, 3,755 issued and outstanding in 2016 and 2015, respectively, convertible into one Class A share	1			1
Shares to be issued, 100,000 shares in 2016	2,360			—
Charges in excess of capital	(311,581		)	(315,261		)
Accumulated deficit	(581,848		)	(536,009		)
Accumulated other comprehensive income (loss)	(1,824		)	6,257
MDC Partners Inc. Shareholders’ Deficit	(575,109		)	(575,171		)
Noncontrolling Interests	65,633			79,079
Total Shareholders’ Deficit	(509,476		)	(496,092		)
Total Liabilities, Redeemable Noncontrolling Interests and Shareholders’ Deficit	$	1,577,378		$	1,577,625

The accompanying notes to the consolidated financial statements are an integral part of these statements.

59

MDC PARTNERS INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Thousands of United States Dollars)

	Years Ended December 31,
	2016			2015			2014
Cash flows (used in) provided by operating activities:
Net loss	$	(40,621	)	$	(26,400	)	$	(14,521	)
Loss from discontinued operations	—			(6,281		)	(21,260		)
Income (loss) from continuing operations	(40,621		)	(20,119		)	6,739
Adjustments to reconcile income (loss) from continuing operations to cash provided by operating activities:
Stock-based compensation	21,003			17,796			17,696
Depreciation	22,293			18,871			16,462
Amortization of intangibles	24,153			33,352			30,710
Amortization of deferred finance charges and debt discount	9,135			2,270			2,247
Goodwill impairment	48,524			—			—
Loss on redemption of Notes	26,873			—			—
Adjustment to deferred acquisition consideration	8,227			38,887			18,652
Deferred income taxes	(10,038		)	(79		)	8,317
Gain on sale of assets	(424		)	(6,526		)	—
Earnings (losses) of non-consolidated affiliates	309			(1,058		)	(1,406		)
Other and non-current assets and liabilities	13,527			4,680			(7,805		)
Foreign exchange	(8,240		)	30,185			14,821
Changes in working capital:
Accounts receivable	(16,752		)	(4,796		)	(35,800		)
Expenditures billable to clients	13,048			(3,879		)	23,351
Prepaid expenses and other current assets	(13,608		)	1,550			(1,949		)
Accounts payable, accruals and other current liabilities	(110,018		)	75,111			88,955
Advance billings	11,397			(23,508		)	(13,805		)
Cash flows (used in) provided by continuing operating activities	(1,212		)	162,737			167,185
Discontinued operations	—			(1,342		)	(1,827		)
Net cash (used in) provided by operating activities	(1,212		)	161,395			165,358
Cash flows used in investing activities:
Capital expenditures	(29,432		)	(23,575		)	(26,416		)
Deposits	(2,528		)	—			—
Proceeds from sale of assets	666			8,631			85
Acquisitions, net of cash acquired	2,531			(24,778		)	(68,344		)
Distributions from non-consolidated affiliates	7,402			—			3,409
Other investments	(3,835		)	(7,272		)	(6,312		)
Cash flows used in continuing investing activities	(25,196		)	(46,994		)	(97,578		)
Discontinued operations	—			17,101			(2,108		)
Net cash used in investing activities	(25,196		)	(29,893		)	(99,686		)

The accompanying notes to the consolidated financial statements are an integral part of these statements.

60

MDC PARTNERS INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Thousands of United States Dollars) – (continued)

	Years Ended December 31,
	2016			2015			2014
Cash flows used in financing activities:
Proceeds from issuance of 6.50% Notes	900,000			—			—
Repayment of 6.75% Notes	(735,000		)	—			—
Proceeds from issuance of 6.75% Notes	—			—			78,937
Repayments of revolving credit facility	(1,790,108		)	(703,020		)	(378,985		)
Proceeds from revolving credit facility	1,844,533			703,020			378,985
Acquisition related payments	(135,693		)	(134,056		)	(78,322		)
Distributions to noncontrolling interests	(7,772		)	(9,503		)	(6,523		)
Payment of dividends	(32,918		)	(42,313		)	(37,698		)
Repayment of long-term debt	(507		)	(534		)	(656		)
Premium paid on redemption of Notes	(26,873		)	—			—
Deferred financing costs	(21,569		)	—			(3,659		)
Purchase of shares	(3,350		)	(2,388		)	(5,414		)
Other	—			224			112
Cash flows used in continuing financing activities	(9,257		)	(188,570		)	(53,223		)
Discontinued operations	—			(40		)	(40		)
Net cash used in financing activities	(9,257		)	(188,610		)	(53,263		)
Effect of exchange rate changes on cash and cash equivalents	2,128			5,218			(1,068		)
(Decrease) increase in cash and cash equivalents	(33,537		)	(51,890		)	11,341
Cash and cash equivalents at beginning of year	61,458			113,348			102,007
Cash and cash equivalents at end of year	$	27,921		$	61,458		$	113,348
Supplemental disclosures:
Cash income taxes paid	$	2,895		$	1,887		$	431
Cash interest paid	$	64,671		$	52,666		$	49,253
Change in cash held in trusts	$	219		$	(1,297	)	$	6,419
Non-cash transactions:
Capital leases	$	265		$	140		$	773
Note receivable exchanged for shares of subsidiary	$	—		$	—		$	1,746
Dividends payable	$	739		$	912		$	1,347
Deferred acquisition consideration settled through issuance of shares	$	10,458		$	—		$	—
Value of shares issued for acquisition	$	34,219		$	—		$	—
Leasehold improvements paid for by landlord	$	7,250		$	—		$	—

The accompanying notes to the consolidated financial statements are an integral part of these statements.

61

MDC PARTNERS INC.

CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ DEFICIT

(Thousands of United States Dollars)

	Common Stock									Share Capital to Be Issued					Additional Paid-in Capital			Charges in Excess of Capital			Accumulated Deficit			Stock Subscription Receivable			Accumulated Other Comprehensive Loss			MDC Partners Inc. Shareholders’ Deficit			Noncontrolling Interests			Total Shareholders’ Deficit
	Class A						Class B
	Shares			Amount			Shares	Amount		Shares		Amount
Balance at December 31, 2013	49,092,427			$	262,655		3,755	$	1	42,000		$	424		$	—		$	(126,352	)	$	(479,144	)	$	(55	)	$	(797	)	$	(343,268	)	$	53,088		$	(290,180	)
Net loss attributable to MDC Partners	—			—			—	—		—		—			—			—			(21,411		)	—			—			(21,411		)	—			(21,411		)
Other comprehensive loss	—			—			—	—		—		—			—			—			—			—			(6,955		)	(6,955		)	(1,712		)	(8,667		)
Shares acquired and canceled	(216,004		)	(5,414		)	—	—		—		—			—			—			—			—			—			(5,414		)	—			(5,414		)
Issuance of restricted stock	761,686			7,661			—	—		—		—			(7,661		)	—			—			—			—			—			—			—
Stock subscription receipts	—			—			—	—		—		—			—			—			—			55			—			55			—			55
Stock-based compensation	—			—			—	—		—		—			9,868			—			—			—			—			9,868			—			9,868
Changes in redemption value of redeemable noncontrolling interests	—			—			—	—		—		—			(38,850		)	—			—			—			—			(38,850		)	—			(38,850		)
Decrease in noncontrolling interests and redeemable noncontrolling interests from business acquisitions and step-up transactions	—			—			—	—		—		—			(8,992		)	—			—			—			—			(8,992		)	(8,839		)	(17,831		)
Increase in noncontrolling interests from business acquisitions	—			—			—	—		—		—			—			—			—			—			—			—			50,118			50,118
Dividends paid and to be paid	—			—			—	—		—		—			(37,244		)	—			—			—			—			(37,244		)	—			(37,244		)
Other	42,000			915			—	—		(42,000	)	(424		)	(437		)	—			—			—			—			54			—			54
Transfer to charges in excess of capital	—			—			—	—		—		—			83,316			(83,316		)	—			—			—			—			—			—
Balance at December 31, 2014	$	49,680,109		$	265,817		3,755	$	1	—		$	—		$	—		$	(209,668	)	$	(500,555	)	$	—		$	(7,752	)	$	(452,157	)	$	92,655		$	(359,502	)

The accompanying notes to the consolidated financial statements are an integral part of these statements.

62

MDC PARTNERS INC.

CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ DEFICIT

(Thousands of United States Dollars) – (continued)

	Common Stock								Share Capital to Be Issued			Additional Paid-in Capital			Charges in Excess of Capital			Accumulated Deficit			Stock Subscription Receivable		Accumulated Other Comprehensive Income (Loss)			MDC Partners Inc. Shareholders’ Deficit			Noncontrolling Interests			Total Shareholders’ Deficit
	Class A					Class B
	Shares		Amount			Shares	Amount		Shares	Amount
Balance at December 31, 2014	49,680,109		$	265,817		3,755	$	1	—	$	—	$	—		$	(209,668	)	$	(500,555	)	$	—	$	(7,752	)	$	(452,157	)	$	92,655		$	(359,502	)
Net loss attributable to MDC Partners	—		—			—	—		—	—		—			—			(35,454		)	—		—			(35,454		)	—			(35,454		)
Other comprehensive income (loss)	—		—			—	—		—	—		—			—			—			—		14,009			14,009			(4,868		)	9,141
Issuance of restricted stock	365,873		6,069			—	—		—	—		(6,069		)	—			—			—		—			—			—			—
Shares acquired and canceled	(96,777	)	(2,388		)	—	—		—	—		—			—			—			—		—			(2,388		)	—			(2,388		)
Options exercised	37,500		343			—	—		—	—		(119		)	—			—			—		—			224			—			224
Stock-based compensation	—		—			—	—		—	—		8,437			—			—			—		—			8,437			—			8,437
Changes in redemption value of redeemable noncontrolling interests	—		—			—	—		—	—		(22,809		)	—			—			—		—			(22,809		)	—			(22,809		)
Decrease in noncontrolling interests and redeemable noncontrolling interests from business acquisitions and step-up transactions	—		—			—	—		—	—		(42,780		)	—			—			—		—			(42,780		)	(8,708		)	(51,488		)
Dividends paid and to be paid	—		—			—	—		—	—		(42,253		)	—			—			—		—			(42,253		)	—			(42,253		)
Transfer to charges in excess of capital	—		—			—	—		—	—		105,593			(105,593		)	—			—		—			—			—			—
Balance at December 31, 2015	49,986,705		$	269,841		3,755	$	1	—	$	—	$	—		$	(315,261	)	$	(536,009	)	$	—	$	6,257		$	(575,171	)	$	79,079		$	(496,092	)

The accompanying notes to the consolidated financial statements are an integral part of these statements.

63

MDC PARTNERS INC.

CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ DEFICIT

(Thousands of United States Dollars) – (continued)

	Common Stock								Share Capital to Be Issued			Additional Paid-in Capital			Charges in Excess of Capital			Accumulated Deficit			Stock Subscription Receivable		Accumulated Other Comprehensive Income (Loss)			MDC Partners Inc. Shareholders’ Deficit			Noncontrolling Interests			Total Shareholders’ Deficit
	Class A					Class B
	Shares		Amount			Shares	Amount		Shares	Amount
Balance at December 31, 2015	49,986,705		$	269,841		3,755	$	1	—	$	—	$	—		$	(315,261	)	$	(536,009	)	$	—	$	6,257		$	(575,171	)	$	79,079		$	(496,092	)
Net loss attributable to MDC Partners	—		—			—	—		—	—		—			—			(45,839		)	—		—			(45,839		)	—			(45,839		)
Other comprehensive income (loss)	—		—			—	—		—	—		—			—			—			—		(8,081		)	(8,081		)	394			(7,687		)
Deferred acquisition consideration settled through issuance of shares	691,559		10,458			—	—		100,000	2,360		—			—			—			—		—			12,818			—			12,818
Issuance of restricted stock and stock options	425,915		6,615			—	—		—	—		(6,615		)	—			—			—		—			—			—			—
Shares issued, acquisition	1,900,000		34,219			—	—		—	—		—			—			—			—		—			34,219			—			34,219
Shares acquired and canceled	(205,876	)	(3,350		)	—	—		—	—		—			—			—			—		—			(3,350		)	—			(3,350		)
Stock-based compensation	—		—			—	—		—	—		10,662			—			—			—		—			10,662			—			10,662
Changes in redemption value of redeemable noncontrolling interests	—		—			—	—		—	—		9,604			—			—			—		—			9,604			—			9,604
Changes in noncontrolling interests and redeemable noncontrolling interests from business acquisitions and step-up transactions	—		—			—	—		—	—		22,776			—			—			—		—			22,776			(13,840		)	8,936
Dividends paid and to be paid	—		—			—	—		—	—		(32,747		)	—			—			—		—			(32,747		)	—			(32,747		)
Transfer to charges in excess of capital	—		—			—	—		—	—		(3,680		)	3,680			—			—		—			—			—			—
Balance at December 31, 2016	52,798,303		$	317,783		3,755	$	1	100,000	$	2,360	$	—		$	(311,581	)	$	(581,848	)	$	—	$	(1,824	)	$	(575,109	)	$	65,633		$	(509,476	)

The accompanying notes to the consolidated financial statements are an integral part of these statements.

64

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Except per Share Amounts)

1. Basis of Presentation

MDC Partners Inc. (the “Company” or “MDC”) has prepared the consolidated financial statements included herein pursuant to the rules and regulations of the United States Securities and Exchange Commission (the “SEC”) and in accordance with generally accepted accounting principles of the United States of America (“U.S. GAAP”).

Based in part on feedback from the SEC, the Company performed a comprehensive review of its reportable segments, reassessed the aggregation of its operating segments, and identified four new reportable segments. As each Partner Firm represents an operating segment, the Company aggregates Partner Firms that meet the aggregation criteria pursuant to the guidance of the Financial Accounting Standards Board (the “FASB”) Accounting Standards Codification (the “ASC”) Topic 280, Segment Reporting, into one of four reportable segments and combines and discloses those Partner Firms that do not meet the aggregation criteria in the All Other category. For further information, see Note 14, “Segment Information.”

Nature of Operations

MDC is a leading provider of global marketing, advertising, activation, communications and strategic consulting solutions. MDC’s Partner Firms deliver a wide range of customized services in order to drive growth and business performance for its clients.

MDC Partners Inc., formerly MDC Corporation Inc., is incorporated under the laws of Canada. The Company commenced using the name MDC Partners Inc. on November 1, 2003 and legally changed its name through amalgamation with a wholly-owned subsidiary on January 1, 2004. The Company operates primarily in the U.S., Canada, Europe, Asia, and Latin America.

2. Significant Accounting Policies

The Company’s significant accounting policies are summarized as follows:

Accounting Changes. On December 31, 2016, the Company retrospectively adopted the FASB Accounting Standards Update (“ASU”) 2015-17, Income Taxes (Topic 740). This update requires that deferred tax assets and liabilities be classified as non-current. As a result of the adoption of ASU 2015-17, the balance sheet at December 31, 2015 was adjusted to reflect the reclassification of $14,381 from other current assets to long-term deferred tax assets and $263 from accruals and other liabilities to long-term deferred tax liabilities.

On January 1, 2016, the Company retrospectively adopted the FASB ASU 2015-03, Interest - Imputation of Interest. This update requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. As a result of the adoption of this update, the balance sheet at December 31, 2015 was adjusted to reflect the reclassification of $12,625 from other assets to long-term debt.

Additionally, the Company prospectively adopted the FASB ASU 2016-09, Stock Compensation (Topic 718). As a result of the adoption, there was no material impact.

Principles of Consolidation.  The accompanying consolidated financial statements include the accounts of MDC Partners Inc. and its domestic and international controlled subsidiaries that are not considered variable interest entities, and variable interest entities for which the Company is the primary beneficiary. Intercompany balances and transactions have been eliminated in consolidation.

Reclassifications. Certain reclassifications have been made to the prior period financial statements to conform to the current period presentation. During the three months ended March 31, 2017, the Company changed the presentation of book overdrafts on its statement of cash flows to classify the associated cash flows as operating activities. Book overdrafts were previously presented within financing activities. This resulted in cash outflows of $6,636 and $1,410, and inflows of $37,835, being reclassified from financing activities to operating activities for the for the years ended December 31,2016, 2015 and 2014, respectively. There was no impact on the Company’s consolidated statements of operations, comprehensive income (loss), or balance sheets.

Use of Estimates.  The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities including goodwill, intangible assets, contingent deferred acquisition consideration, valuation allowances for receivables, deferred tax assets and the amounts of revenue and expenses reported during the period. These estimates are evaluated on an ongoing basis and are based on historical experience, current conditions and various other assumptions believed to be reasonable under the circumstances. Actual results could differ from these estimates.

Fair Value.  The Company applies the fair value measurement guidance of the FASB Accounting Standards Codification (the “ASC”) Topic 820, Fair Value Measurements, for financial assets and liabilities that are required to be measured at fair value and

65

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

2. Significant Accounting Policies – (continued)

for non-financial assets and liabilities that are not required to be measured at fair value on a recurring basis, including goodwill and other identifiable intangible assets. The measurement of fair value requires the use of techniques based on observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions. The inputs create the following fair value hierarchy:

• Level 1 - Quoted prices for identical instruments in active markets.

• Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations where inputs are observable or where significant value drivers are observable.

• Level 3 - Instruments where significant value drivers are unobservable to third parties.

When available, the Company uses quoted market prices to determine the fair value of its financial instruments and classifies such items in Level 1. In some cases, quoted market prices are used for similar instruments in active markets and the Company classifies such items in Level 2.

Concentration of Credit Risk.  The Company provides marketing communications services to clients who operate in most industry sectors. Credit is granted to qualified clients in the ordinary course of business. Due to the diversified nature of the Company’s client base, the Company does not believe that it is exposed to a concentration of credit risk. No client accounted for more than 10% of the Company’s consolidated accounts receivable as of December 31, 2016 and 2015. No clients accounted for 10% of the Company's revenue in each of the years ended December 31, 2016, 2015, and 2014.

Cash and Cash Equivalents.  The Company’s cash equivalents are primarily comprised of investments in overnight interest-bearing deposits, commercial paper and money market instruments and other short-term investments with original maturity dates of three months or less at the time of purchase. The Company has a concentration of credit risk in that there are cash deposits in excess of federally insured amounts.

Cash in Trust. A subsidiary of the Company holds restricted cash in trust accounts related to funds received on behalf of clients. Such amounts are held in escrow under depositary service agreements and distributed at the direction of the clients.  The funds are presented as a corresponding liability on the balance sheet.

Allowance for Doubtful Accounts.  Trade receivables are stated at invoiced amounts less allowances for doubtful accounts. The allowances represent estimated uncollectible receivables associated with potential customer defaults usually due to customers’ potential insolvency. The allowances include amounts for certain customers where a risk of default has been specifically identified. The assessment of the likelihood of customer defaults is based on various factors, including the length of time the receivables are past due, historical experience and existing economic conditions.

Expenditures Billable to Clients.  Expenditures billable to clients consist principally of outside vendor costs incurred on behalf of clients when providing advertising, marketing and corporate communications services that have not yet been invoiced to clients. Such amounts are invoiced to clients at various times over the course of the production process.

Fixed Assets.  Fixed assets are stated at cost, net of accumulated depreciation. Computers, furniture and fixtures are depreciated on a straight-line basis over periods of three to seven years. Leasehold improvements are depreciated on a straight-line basis over the lesser of the term of the related lease or the estimated useful life of the asset. Repairs and maintenance costs are expensed as incurred.

Impairment of Long-lived Assets.  In accordance with the FASB ASC, a long-lived asset or asset group is tested for recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable. When such events occur, the Company compares the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset or asset group to the carrying amount of such asset or asset group. If this comparison indicates that there is an impairment, the amount of the impairment is typically calculated using discounted expected future cash flows where observable fair values are not readily determinable. The discount rate applied to these cash flows is based on the Company’s weighted average cost of capital (“WACC”), risk adjusted where appropriate.

Equity Method Investments.  The equity method is used to account for investments in entities in which the Company has an ownership interest of less than 50% and has significant influence, or joint control by contractual arrangement, (i) over the operating and financial policies of the affiliate or (ii) has an ownership interest greater than 50%; however, the substantive participating rights of the noncontrolling interest shareholders preclude the Company from exercising unilateral control over the operating and financial policies of the affiliate. The Company’s investments accounted for using the equity method include a 30% undivided

66

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

2. Significant Accounting Policies – (continued)

interest in a real estate joint venture and various interests in investment funds. The Company’s management periodically evaluates these investments to determine if there has been a decline in value that is other than temporary. These investments are included in investments in non-consolidated affiliates.

During the year ended December 31,2016, the Company sold its ownership in two of these equity method investments for $4,023 and recognized a gain of $623 in Other income.

During the year ended December 31, 2015, the Company sold its ownership in one of these equity method investments for $2,094 and recognized a gain of $1,086 in Other income.

Cost Method Investments.  From time to time, the Company makes non-material cost based investments in start-up advertising technology companies and innovative consumer product companies where the Company does not exercise significant influence over the operating and financial policies of the investee. The total net cost basis of these investments, which is included in Other Assets on the balance sheet, as of December 31, 2016 and 2015 was $10,132 and $11,763, respectively. These investments are periodically evaluated to determine whether a significant event or change in circumstances has occurred that may impact the fair value of each investment other than temporary declines below book value. A variety of factors are considered when determining if a decline is other than temporary, including, among others, the financial condition and prospects of the investee, as well as the Company’s investment intent.

During the year ended December 31, 2016, the Company sold its ownership in three of these cost method investments for an aggregate purchase price of $4,074 and recognized a gain of $1,309 in Other income.

During the year ended December 31, 2015, the Company sold its ownership in six of these cost method investments for an aggregate purchase price of $11,364 and recognized a gain of $5,440 in Other income.

In addition, the Company’s partner agencies may receive noncontrolling equity interests from start-up companies in lieu of fees. During the year ended December 31, 2014, the Company liquidated two such equity interest positions in exchange for an aggregate purchase price equal to $8,248. The purchasers of these equity investments were current investors in such entities and two executive officers of our subsidiary partner agencies.

Goodwill and Indefinite Lived Intangibles.  In accordance with the FASB ASC topic, Goodwill and Other Intangible Assets, goodwill and indefinite life intangible assets (trademarks) acquired as a result of a business combination which are not subject to amortization are tested for impairment annually as of October 1st of each year, or more frequently if indicators of potential impairment exist. For goodwill, impairment is assessed at the reporting unit level.

For the annual impairment testing the Company has the option of assessing qualitative factors to determine whether it is more likely than not that the carrying amount of a reporting unit exceeds its fair value or performing the two-step goodwill impairment test. Qualitative factors considered in the assessment include industry and market considerations, the competitive environment, overall financial performance, changing cost factors such as labor costs, and other factors specific to each reporting unit such as change in management or key personnel.

If the Company elects to perform the qualitative assessment and concludes that it is more likely than not that the fair value of the reporting unit is more than its carrying amount, then goodwill is not considered impaired and the two-step goodwill impairment test is not necessary. For reporting units for which the qualitative assessment concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount and for reporting units for which the qualitative assessment is not performed, the Company will perform the first step of the goodwill impairment test, which compares the fair value of the reporting unit to its carrying amount. If the fair value of the reporting unit exceeds the carrying amount of the net assets assigned to that reporting unit, goodwill is not considered impaired and additional analysis is not required. However, if the carrying amount of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, then the second step of the goodwill impairment test must be performed to determine the implied fair value of the reporting unit’s goodwill.

Determining the fair value of a reporting unit involves the use of significant estimates and assumptions. The Company’s goodwill impairment test uses the income approach to estimate a reporting unit’s fair value. The income approach is based on a discounted cash flow (“DCF”) method, which requires the exercise of significant judgment, including judgment about the amount and timing of expected future cash flows, assumed terminal value and appropriate discount rates.

The DCF estimates incorporate expected cash flows that represent a spectrum of the amount and timing of possible cash flows of each reporting unit from a market participant perspective. The expected cash flows are developed as part of the Company’s routine long-range planning process using projections of revenue and expenses and related cash flows based on assumed long-

67

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

2. Significant Accounting Policies – (continued)

term growth rates and demand trends and appropriate discount rates based on a reporting unit’s WACC as determined by considering the observable WACC of comparable companies and factors specific to the reporting unit (for example, size). The terminal value is estimated using a constant growth method which requires an assumption about the expected long-term growth rate. The estimates are based on historical data and experience, industry projections, economic conditions, and the Company’s expectations.

The assumptions used for the long-term growth rate and WACC in the annual goodwill impairment tests are as follows:

	October 1,
	2016	2015
Long-term growth rate	3%	3%
WACC	10.39% - 13.45%	8.92% - 11.95%

The Company’s reporting units vary in size with respect to revenue and operating profits. These differences drive variations in fair value of the reporting units. In addition, these differences as well as differences in book value, including goodwill, cause variations in the amount by which fair value exceeds the carrying amount of the reporting units. The reporting unit goodwill balances vary by reporting unit primarily because it relates specifically to the Partner Firm’s goodwill which was determined at the date of acquisition.

Under the second step of the goodwill impairment test, the Company utilizes both a market approach and income approach to estimate the implied fair value of a reporting unit’s goodwill. For the market approach, the Company utilizes both the guideline public company method and the precedent transaction method. For the income approach, the Company utilizes a DCF method. The Company weights the market and income approaches to arrive at an implied fair value of goodwill. If the Company determines that the carrying amount of a reporting unit’s goodwill exceeds its implied fair value, an impairment loss equal to the difference is recorded.

For the 2015 annual goodwill impairment testing, the Company had 13 reporting units. All of the reporting units were subject to the two-step test. As the fair value of all reporting units were in excess of their respective carrying amounts, there was no impairment of goodwill. The range of the excess of the fair value over the carrying amount was from 7% to over 100%. The Company performed a sensitivity analysis which included a 1% increase to the WACC. Based on the results of that analysis, one reporting unit, which was comprised of the marketing experiential businesses, was at risk of failing.

The Company noted no significant events or conditions during the first and second quarter of 2016 that would have affected the conclusions from the annual assessment. During the third quarter of 2016, the Company changed its operating segments, as a result of the management structure change as discussed in Note 14, which resulted in a corresponding change to the Company’s reporting units. Each Partner Firm now represents an operating segment as well as a reporting unit for goodwill impairment testing. As a result of the changes in the reporting units, the Company performed further analysis to assess whether the results of the 2015 testing would have been different had it been performed at the Partner Firm level. This change in operating segments, coupled with a decline in operating performance required the Company to perform interim goodwill testing on one of its experiential reporting units. Additionally, a triggering event occurred during the third quarter of 2016 that required the Company to perform interim goodwill testing on one non-material reporting unit. These two reporting units failed the first step of the goodwill impairment testing, and the second step of the goodwill impairment testing resulted in a partial impairment of goodwill of $27,893 and $1,738 relating to the experiential reporting unit and non-material reporting unit, respectively. See Note 8 for further information.

For the 2016 annual goodwill impairment test, the Company had 31 reporting units, all of which were subject to the two-step test.

For the 2016 annual goodwill impairment test, the carrying amount of one of the Company’s strategic communications reporting unit exceeded its fair value and the second step of the goodwill impairment test was performed, resulting in a partial impairment of goodwill of $18,893. The fair value for all other reporting units were in excess of their respective carrying amounts and as a result there was no additional impairment of goodwill. The range of the excess of the fair value over the carrying amount was from 5% to over 100%. The Company performed a sensitivity analysis which included a 1% increase to the WACC. Based on the results of that analysis, the non-material reporting unit for which a partial impairment of goodwill was recorded during the third quarter of 2016 would be at risk of failing; however, there were no events or circumstances that would more likely than not reduce the fair value of such reporting unit below its respective carrying value between the interim and annual goodwill impairment testing performed.

68

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

2. Significant Accounting Policies – (continued)

The Company believes the estimates and assumptions used in the calculations are reasonable. However, if there was an adverse change in the facts and circumstances, then an impairment charge may be necessary in the future. The Company will monitor its reporting units to determine if there is an indicator of potential impairment. Should the fair value of any of the Company’s reporting units fall below its carrying amount because of reduced operating performance, market declines, changes in the discount rate, or other conditions, charges for impairment may be necessary. Subsequent to the annual impairment test at October 1, 2016, there were no events or circumstances that triggered the need for an interim impairment test. See Note 8 for further information.

Definite Lived Intangible Assets.  In accordance with the FASB ASC, acquired intangibles are subject to amortization over their useful lives. The method of amortization selected reflects the pattern in which the economic benefits of the specific intangible asset is consumed or otherwise used up. If that pattern cannot be reliably determined, a straight-line amortization method is used over the estimated useful life. Intangible assets that are subject to amortization are reviewed for potential impairment at least annually or whenever events or circumstances indicate that carrying amounts may not be recoverable. See also Note 8.

BusinessCombinations. Business combinationsare accounted for using the acquisition method and accordingly, the assets acquired (including identified intangible assets), the liabilities assumed and any noncontrolling interest in the acquired business are recorded at their acquisition date fair values. The Company’s acquisition model typically provides for an initial payment at closing and for future additional contingent purchase price obligations. Contingent purchase price obligations are recorded as deferred acquisition consideration on the balance sheet at the acquisition date fair value and are remeasured at each reporting period. Changes in such estimated values are recorded in the results of operations. For the years ended December 31, 2016, 2015 and 2014, $7,972, $36,344 and $16,467, respectively, related to changes in estimated value was recorded as operating expenses. For further information, see Note 4 and Note 13. For the years ended December 31, 2016, 2015, and 2014, $2,640, $2,912 and $6,133, respectively, of acquisition related costs were charged to operations.

For each acquisition, the Company undertakes a detailed review to identify other intangible assets and a valuation is performed for all such identified assets. The Company uses several market participant measurements to determine estimated value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies. Like most service businesses, a substantial portion of the intangible asset value that the Company acquires is the specialized know-how of the workforce, which is treated as part of goodwill and is not required to be valued separately. The majority of the value of the identifiable intangible assets acquired is derived from customer relationships, including the related customer contracts, as well as trade names. In executing the Company’s overall acquisition strategy, one of the primary drivers in identifying and executing a specific transaction is the existence of, or the ability to, expand the existing client relationships. The expected benefits of the Company’s acquisitions are typically shared across multiple agencies and regions.

Redeemable Noncontrolling Interests.  Many of the Company’s acquisitions include contractual arrangements where the noncontrolling shareholders have an option to purchase, or may require the Company to purchase, such noncontrolling shareholders’ incremental ownership interests under certain circumstances and the Company has similar call options under the same contractual terms. The amount of consideration under these contractual arrangements is not a fixed amount, but rather is dependent upon various valuation formulas as described in Note 16. In the event that an incremental purchase may be required of the Company, the amounts are recorded as redeemable noncontrolling interests in mezzanine equity on the balance sheet at their acquisition date fair value and adjusted for changes to their estimated redemption value through additional paid-in capital (but not less than their initial redemption value), except for foreign currency translation adjustments. These adjustments will not impact the calculation of earnings (loss) per share if the redemption values are less than the estimated fair values. For the three years ended December 31, 2016, 2015, and 2014, there was no impact on the Company's earnings (loss) per share calculation.

69

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

2. Significant Accounting Policies – (continued)

The following table presents changes in redeemable noncontrolling interests:

	Years Ended December 31,
	2016			2015			2014
Beginning Balance as of January 1,	$	69,471		$	194,951		$	148,534
Redemptions	(1,708		)	(155,042		)	(4,820		)
Granted (1)	2,274			7,703			13,327
Changes in redemption value	(9,604		)	22,809			38,850
Currency translation adjustments	(253		)	(950		)	(940		)
Ending Balance as of December 31,	$	60,180		$	69,471		$	194,951

(1) Grants in 2015 consisted of transfers from noncontrolling interests related to step-up transactions and new acquisitions.

Subsidiary and Equity Investment Stock Transactions. Transactions involving the purchase, sale or issuance of stock of a subsidiary where control is maintained are recorded as a reduction in the redeemable noncontrolling interests or noncontrolling interests, as applicable. Any difference between the purchase price and noncontrolling interest is recorded to additional paid-in capital. In circumstances where the purchase of shares of an equity investment results in obtaining control, the existing carrying value of the investment is remeasured to the acquisition date fair value and any gain or loss is recognized in results of operations.

Variable Interest Entity.  Effective March 28, 2012, the Company invested in Doner Partners LLC (“Doner”). The Company acquired a 30% voting interest and convertible preferred interests that allow the Company to increase ordinary voting ownership to 70% at the Company’s option. The Company has determined that (i) this entity is a variable interest entity and (ii) the Company is the primary beneficiary because it receives a disproportionate share of profits and losses as compared to its ownership percentage. As such, Doner is consolidated for all periods subsequent to the date of investment.

Doner is a full service integrated creative agency that is included as part of the Company’s portfolio in the Global Integrated Agencies reportable segment. The Company’s Credit Agreement (see Note 11) is guaranteed and secured by all of Doner’s assets.

Total assets and total liabilities of Doner included in the Company’s consolidated balance sheet at December 31, 2016 and 2015, were $102,456 and $57,622, and $122,558 and $86,047, respectively.

Guarantees.  Guarantees issued or modified by the Company to third parties after January 1, 2003 are generally recognized, at the inception or modification of the guarantee, as a liability for the obligations it has undertaken in issuing the guarantee, including its ongoing obligation to stand ready to perform over the term of the guarantee in the event that the specified triggering events or conditions occur. The initial measurement of that liability is the fair value of the guarantee. The recognition of the liability is required even if it is not probable that payments will be required under the guarantee. The Company’s liability associated with guarantees is not significant. (See Note 16.)

Revenue Recognition.  The Company’s revenue recognition policies are established in accordance with the Revenue Recognition topics of the FASB ASC, and accordingly, revenue is recognized when all of the following criteria are satisfied: (i) persuasive evidence of an arrangement exists; (ii) the selling price is fixed or determinable; (iii) services have been performed or upon delivery of the products when ownership and risk of loss has transferred to the client; and (iv) collection of the resulting receivable is reasonably assured.

The Company follows the Multiple-Element Arrangement topic of the FASB ASC, which addresses certain aspects of the accounting by a vendor for arrangements under which it will perform multiple revenue-generating activities and how to determine whether an arrangement involving multiple deliverables contains more than one unit of accounting.

The Company follows the Principal Agent Consideration topic of the FASB ASC which addresses (i) whether revenue should be recorded at the gross amount billed because it has earned revenue from the sale of goods or services, or recorded at the net amount retained because it has earned a fee or commission, and (ii) that reimbursements received for out-of-pocket expenses incurred should be characterized in the income statement as revenue. Accordingly, the Company has included such reimbursed expenses in revenue.

The Company earns revenue from agency arrangements in the form of retainer fees or commissions; from short-term project arrangements in the form of fixed fees or per diem fees for services; and from incentives or bonuses.

70

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

2. Significant Accounting Policies – (continued)

Non-refundable retainer fees are generally recognized on a straight-line basis over the term of the specific customer arrangement. Commission revenue is earned and recognized upon the placement of advertisements in various media when the Company has no further performance obligations. Fixed fees for services are recognized upon completion of the earnings process and acceptance by the client. Per diem fees are recognized upon the performance of the Company’s services. In addition, for a limited number of certain service transactions, which require delivery of a number of service acts, the Company uses the proportional performance model, which generally results in revenue being recognized based on the straight-line method.

Fees billed to clients in excess of fees recognized as revenue are classified as Advanced Billings on the Company’s balance sheet.

A small portion of the Company’s contractual arrangements with customers includes performance incentive provisions, which allow the Company to earn additional revenue as a result of its performance relative to both quantitative and qualitative goals. The Company recognizes the incentive portion of revenue under these arrangements when specific quantitative goals are assured, or when the Company’s clients determine performance against qualitative goals has been achieved. In all circumstances, revenue is only recognized when collection is reasonably assured. The Company records revenue net of sales and other taxes due to be collected and remitted to governmental authorities.

Cost of Services Sold.  Cost of services sold do not include depreciation charges for fixed assets.

Interest Expense.  Interest expense primarily consists of the cost of borrowing on the Company’s previously outstanding 6.75% Senior Notes due 2020 (the “6.75% Notes”); the Company’s 6.50% senior unsecured notes due 2024 (the “6.50% Notes”); and the Company’s $325 million senior secured revolving credit agreement due 2021 (the “Credit Agreement”). The Company uses the effective interest method to amortize the deferred financing costs as well as the original issue premium on the previously outstanding 6.75% Notes. The Company also uses the straight-line method to amortize the deferred financing costs on the Credit Agreement. For the years ended December 31, 2016, 2015, and 2014, interest expense included $255, $2,543, and $2,186, respectively, relating to present value adjustments for fixed deferred acquisition consideration payments.

Deferred Taxes.  The Company uses the asset and liability method of accounting for income taxes. Deferred income taxes are provided for the temporary difference between the financial reporting basis and tax basis of the Company’s assets and liabilities. Deferred tax benefits result principally from certain tax carryover benefits and from recording certain expenses in the financial statements that are not currently deductible for tax purposes and from differences between the tax and book basis of assets and liabilities recorded in connection with acquisitions. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. Deferred tax liabilities result principally from deductions recorded for tax purposes in excess of that recorded in the financial statements or income for financial statement purposes in excess of the amount for tax purposes. The effect of changes in tax rates is recognized in the period the rate change is enacted.

During the second quarter of 2017, the Company identified and recorded out-of-period adjustments related to the misapplication of ASC 740 and ASC 850-740 accounting policies as they applied to the calculation of deferred tax liabilities.  The Company has revised prior period information presented on this Amendment No. 1 on Form 10-K/A as follows: (i) for the years ended December 31, 2016, 2015, and 2014, income tax expense has been reduced by $2,108, $1,903, and $2,646, respectively, (ii) basic and diluted net loss attributable to MDC Partners Inc. common shareholders for the years ended December 31, 2016, 2015, and 2014 increased by $0.04 per share, $0.04 per share, and $0.06 per share, respectively, (iii) deferred tax liabilities as of December 31, 2016 and 2015 have been increased by $6,916 and $9,016, respectively, and (iv) accumulated deficit as of December 31, 2013 has been increased by $13,568. The correction had no impact on the Company’s cash flows.

Stock-Based Compensation.  Under the fair value method, compensation cost is measured at fair value at the date of grant and is expensed over the service period, in this case the award’s vesting period. The Company recognized forfeitures as they occur. When awards are exercised, share capital is credited by the sum of the consideration paid together with the related portion previously credited to additional paid-in capital when compensation costs were charged against income or acquisition consideration.

The Company uses its historical volatility derived over the expected term of the award to determine the volatility factor used in determining the fair value of the award.

Stock-based awards that are settled in cash, or may be settled in cash at the option of employees, are recorded as liabilities. The measurement of the liability and compensation cost for these awards is based on the fair value of the award, and is recorded in operating income over the service period, in this case the awards vesting period. Changes in the Company’s payment obligation

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MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

2. Significant Accounting Policies – (continued)

prior to the settlement date of a stock-based award are recorded as compensation cost in operating income in the period of the change. The final payment amount for such awards is established on the date of the exercise of the award by the employee.

Stock-based awards that are settled in cash or equity at the option of the Company are recorded at fair value on the date of grant and recorded as additional paid-in capital. The fair value measurement of the compensation cost for these awards is based on using the Black-Scholes option pricing-model and is recorded in operating income over the service period, in this case the award's vesting period.

For the years ended December 31, 2016, 2015, and 2014, the Company issued no stock options or similar awards.

It is the Company’s policy for issuing shares upon the exercise of an equity incentive award to verify the amount of shares to be issued, as well as the amount of proceeds to be collected (if any) and to deliver new shares to the exercising party.

The Company has adopted the straight-line attribution method for determining the compensation cost to be recorded during each accounting period. The Company commences recording compensation expense related to awards that are based on performance conditions under the straight-line attribution method when it is probable that such performance conditions will be met. The fair value at the grant date for performance based awards granted in 2016, 2015, and 2014 was $140, $1,741, and $3,026, respectively.

The Company treats benefits paid by shareholders or equity members to employees as a stock-based compensation charge with a corresponding credit to additional paid-in capital.

From time to time, certain acquisitions and step-up transactions include an element of compensation related payments. The Company accounts for those payments as stock-based compensation.

Pension Costs.  Several of the Company’s U.S. and Canadian subsidiaries offer employees access to certain defined contribution pension programs. Under the defined contribution plans, these subsidiaries, in some cases, make annual contributions to participants’ accounts which are subject to vesting. The Company’s contribution expense pursuant to these plans was $10,026, $6,731 and $7,503 for the years ended December 31, 2016, 2015, and 2014, respectively. The Company also has a defined benefit plan. See Note 18.

Income (Loss) per Common Share.  Basic income (loss) per share is based upon the weighted average number of common shares outstanding during each period. “Share capital to be issued” as reflected in the Shareholders’ Equity on the balance sheet are also included if there is no circumstance under which those shares would not be issued. Diluted income (loss) per share is based on the above, in addition, if dilutive, common share equivalents, which include outstanding options, stock appreciation rights, and unvested restricted stock units.

Foreign Currency Translation.  The Company’s financial statements were prepared in accordance with the requirements of the Foreign Currency Translation topic of the FASB ASC. The functional currency of the Company is the Canadian dollar and it has decided to use U.S. dollars as its reporting currency for consolidated reporting purposes. Generally, the Company’s subsidiaries use their local currency as their functional currency. Accordingly, the currency impacts of the translation of the balance sheets of the Company’s non-U.S. dollar based subsidiaries to U.S. dollar statements are included as cumulative translation adjustments in accumulated other comprehensive income. Translation of intercompany debt, which is not intended to be repaid, is included in cumulative translation adjustments. Cumulative translation adjustments are not included in net earnings unless they are actually realized through a sale or upon complete, or substantially complete, liquidation of the Company’s net investment in the foreign operation. Translation of current intercompany balances are included in net earnings. The balance sheets of non-U.S. dollar based subsidiaries are translated at the period end rate. The income statements of non-U.S. dollar based subsidiaries are translated at average exchange rates for the period.

Gains and losses arising from the Company’s foreign currency transactions are reflected in net earnings. Unrealized gains or losses arising on the translation of certain intercompany foreign currency transactions that are of a long-term nature (that is settlement is not planned or anticipated in the future) are included as cumulative translation adjustments in accumulated other comprehensive income.

Derivative Financial Instruments.  The Company follows the Accounting for Derivative Instruments and Hedging Activities topic of the FASB ASC, which establishes accounting and reporting standards requiring that every derivative instrument (including certain derivative instruments embedded in other contracts and debt instruments) be recorded on the balance sheet as either an asset or liability measured at its fair value. The accounting for the change in fair value of the derivative depends on whether the instrument qualifies for and has been designated as a hedging relationship and on the type of hedging relationship. There are three types of hedging relationships: (i) a cash flow hedge, (ii) a fair value hedge, and (iii) a hedge of foreign currency exposure of a

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MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

2. Significant Accounting Policies – (continued)

net investment in a foreign operation. The designation is based upon the exposure being hedged. Derivatives that are not hedges, or become ineffective hedges, must be adjusted to fair value through earnings.

3. Loss per Common Share

The following table sets forth the computation of basic and diluted loss per common share from continuing operations for the years ended December 31:

	2016			2015			2014
Numerator
Numerator for diluted loss per common share – income (loss) from continuing operations	$	(40,621	)	$	(20,119	)	$	6,739
Net income attributable to the noncontrolling interests	(5,218		)	(9,054		)	(6,890		)
Loss attributable to MDC Partners Inc. common shareholders from continuing operations	(45,839		)	(29,173		)	(151		)
Effect of dilutive securities	—			—			—
Numerator for diluted loss per common share – loss attributable to MDC Partners Inc. common shareholders from continuing operations	$	(45,839	)	$	(29,173	)	$	(151	)
Denominator
Denominator for basic loss per common share – weighted average common shares	51,345,807			49,875,282			49,545,350
Effect of dilutive securities:
Dilutive potential common shares	—			—			—
Denominator for diluted loss per common share – adjusted weighted shares and assumed conversions	51,345,807			49,875,282			49,545,350
Basic and Diluted loss per common share from continuing operations	$	(0.89	)	$	(0.58	)	$	—

At December 31, 2016, 2015, and 2014, warrants, options and other rights to purchase 1,391,456, 947,465 and 1,114,681 shares of common stock, respectively, were not included in the computation of diluted loss per common share because doing so would have had an antidilutive effect. Additionally, the 523,321 of restricted stock and restricted stock unit awards which are contingent upon the Company meeting an undefined cumulative three year earnings target and continued employment are also excluded from the computation of diluted loss per common share.

4. Acquisitions

Valuations of acquired companies are based on a number of factors, including specialized know-how, reputation, competitive position and service offerings. The Company’s acquisition strategy has been focused on acquiring the expertise of an assembled workforce in order to continue to build upon the core capabilities of its various strategic business platforms to better serve the Company’s clients. The Company’s strategy includes acquiring ownership stakes in well-managed businesses with strong reputations in the industry. The Company’s model of “Perpetual Partnership” often involves acquiring a majority interest rather than a 100% interest and leaving management owners with a significant financial interest in the performance of the acquired entity for a minimum period of time, typically not less than five years. The Company’s acquisition model in this scenario typically provides for (i) an initial payment at the time of closing, (ii) additional contingent purchase price obligations based on the future performance of the acquired entity, and (iii) an option by the Company to purchase (and in some instances a requirement to so purchase) the remaining interest of the acquired entity under a predetermined formula.

Contingent purchase price obligations. The Company’s contingent purchase price obligations are generally payable within a five year period following the acquisition date, and are based on (i) the achievement of specific thresholds of future earnings, and (ii) in certain cases, the growth rate of those earnings. Contingent purchase price obligations are recorded as deferred acquisition consideration on the balance sheet at the acquisition date fair value and adjusted at each reporting period through operating income or net interest expense, depending on the nature of the arrangement. See Note 13 for additional information on deferred acquisition consideration.

Options to purchase. When acquiring less than 100% ownership, the Company may enter into agreements that give the Company an option to purchase, or require the Company to purchase, the incremental ownership interests under certain

73

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

4. Acquisitions  – (continued)

circumstances. Where the option to purchase the incremental ownership is within the Company’s control, the amounts are recorded as noncontrolling interests in the equity section of the Company’s balance sheet. Where the incremental purchase may be required of the Company, the amounts are recorded as redeemable noncontrolling interests in mezzanine equity at their acquisition date estimated redemption value and adjusted at each reporting period for changes to their estimated redemption value through additional paid-in capital (but not less than their initial redemption value), except for foreign currency translation adjustments. On occasion, the Company may initiate a renegotiation to acquire an incremental ownership interest and the amount of consideration paid may differ materially from the balance sheet amounts. See Note 16 for additional information on redeemable noncontrolling interests.

Employment conditions. From time to time, specifically when the projected success of an acquisition is deemed to be dependent on retention of specific personnel, such acquisition may include deferred payments that are contingent upon employment terms as well as financial performance. The Company accounts for those payments through operating income as stock-based compensation over the required retention period. For the years ended December 31, 2016, 2015 and 2014, stock-based compensation included $10,341, $9,359, and $7,802, respectively, of expense relating to those payments.

Distributions to noncontrolling shareholders. If noncontrolling shareholders have the right to receive distributions based on the profitability of an acquired entity, the amount is recorded as income attributable to noncontrolling interests. However, there are circumstances when the Company acquires a majority interest and the selling shareholders waive their right to receive distributions with respect to their retained interest for a period of time, typically not less than five years.  Under this model, the right to receive such distributions typically begins concurrently with the purchase option period and, therefore, if such option is exercised at the first available date the Company may not record any noncontrolling interest over the entire period from the initial acquisition date through the acquisition date of the remaining interests.

Included in the Company’s consolidated statement of operations for the year ended December 31, 2016 was revenue of $39,569, and net loss of $3,815, related to 2016 acquisitions. The net loss was attributable to an increase in the deferred acquisition payment liability driven by the decrease in the future market performance of the Company’s stock price and the amortization of the intangibles identified in the allocation of the purchase price consideration.

2016 Acquisitions

Effective July 1, 2016, the Company acquired 100% of the equity interests of Forsman & Bodenfors AB (“F&B”), an advertising agency based in Sweden, for an approximate purchase price range of $35,000 to $55,000. The estimated aggregate purchase price at acquisition date of $49,837, which is subject to adjustments, consisted of a closing payment of 1,900,000 MDC Class A subordinate voting shares with an acquisition date fair value of $34,219, plus additional deferred acquisition payments with an estimated present value at acquisition date of $15,618. The amount of additional payments will be calculated based on the financial results of the acquired business for 2015 and 2016 as well as the value of the Company’s shares from July 1, 2016 up to and including the close of business on November 2, 2016. At December 31, 2016, the estimated present value of the additional deferred acquisition payments was $18,857. The additional deferred acquisition payments are payable in 2017 at the Company’s option through the payment of cash or the issuance of additional Class A subordinate voting shares. In the event the Company elects to settle the additional deferred payments through the issuance of Class A subordinate voting shares, such settlement amount will be subject to adjustment based on the value of the Company’s shares determined at the close of business on the final trading day of the seller’s applicable 90 day trading window.

An allocation of excess purchase price consideration of this acquisition to the fair value of the net assets acquired resulted in identifiable intangibles of $36,698, consisting primarily of customer lists, trade names and covenants not to compete, and goodwill of $24,778, including the value of the assembled workforce. The identified assets have a weighted average useful life of approximately 10.8 years and will be amortized in a manner represented by the pattern in which the economic benefits of such assets are expected to be realized. In addition, the Company has recorded $2,275 as the present value of redeemable noncontrolling interests and $5,514 as the present value of noncontrolling interests both relating to the noncontrolling interest of F&B's subsidiaries. None of the intangibles and goodwill are tax deductible and the Company recorded a deferred tax liability of $8,074 related to the intangibles. F&B's results are included in the Global Integrated Agencies reportable segment.

The actual adjustments that the Company will ultimately make in finalizing the allocation of purchase price to fair value of the net assets acquired will depend on a number of factors.

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MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

4. Acquisitions  – (continued)

The following unaudited pro forma results of operations of the Company for the years ended December 31, 2016 and 2015 assume that the acquisition of F&B occurred on January 1, 2015. These unaudited pro forma results are not necessarily indicative of either the actual results of operations that would have been achieved had the acquisition of F&B taken place on January 1, 2015, or are they necessarily indicative of future results of operations.

	Year Ended December 31,
	2016			2015
Revenues	$	1,426,770		$	1,398,756
Net loss attributable to MDC Partners Inc.	$	(39,756	)	$	(34,398	)
Loss per common share:
Basic and Diluted
Net loss attributable to MDC Partners Inc. common shareholders	$	(0.76	)	$	(0.66	)

Effective April 1, 2016, the Company acquired the remaining 40% ownership interests of Luntz Global Partners LLC. In 2016, the Company also entered into various non-material transactions in connection with other majority-owned entities. As a result of the foregoing, the Company made total cash closing payments of $1,581, eliminated the contingent deferred acquisition payments of $4,052 and fixed deferred acquisition payments of $467 related to certain initial acquisition of the equity interests, reduced other assets by $428, reduced redeemable noncontrolling interests by $1,005, reduced noncontrolling interests by $19,354, increased accruals and other liabilities by $94, and increased additional paid-in capital by $22,775. Additional deferred payments with an estimated present value at acquisition date of $2,393 that are contingent upon service conditions have been excluded from deferred acquisition consideration and will be expensed as stock-based compensation over the required service period.

2015 Acquisitions

Effective May 1, 2015, the Company acquired a majority of the equity interests of Y Media Labs LLC, such that following the transaction, the Company’s effective ownership was 60%. Effective October 31, 2015, the Company acquired substantially 100% of the assets of Unique Influence, LLC (and certain other affiliated entities). The aggregate purchase price of these acquisitions had an estimated present value at acquisition date of $55,279 and consisted of total closing cash payments of $23,000 and additional deferred acquisition payments that will be based on the future financial results of the underlying businesses from 2015 to 2020 with final payments due in 2022. These additional deferred payments have an estimated present value at acquisition date of $32,279. An allocation of excess purchase price consideration of these acquisitions to the fair value of the net assets acquired resulted in identifiable intangibles of $16,721, consisting primarily of customer lists, trade names and covenants not to compete, and goodwill of $43,654, including the value of the assembled workforce. The identified assets have a weighted average useful life of approximately 6.3 years and will be amortized in a manner represented by the pattern in which the economic benefits of such assets are expected to be realized. In addition, the Company has recorded $1,999 as the present value of redeemable noncontrolling interests. The Company expects intangibles and goodwill of $9,720 to be tax deductible.

In 2015, the Company acquired incremental ownership interests of Sloane & Company LLC, Anomaly Partners LLC, Allison & Partners LLC, Relevent Partners LLC, Kenna Communications LP and 72andSunny Partners LLC. In addition, the Company also entered into various non-material transactions in connection with other majority owned entities.

The aggregate purchase price for these 2015 acquisitions of incremental ownership interests had an estimated present value at transaction date of $200,822 and consisted of total closing cash payments of $37,467 and additional deferred acquisition payments that are both fixed and based on the future financial results of the underlying businesses from 2015 to 2021 with final payments due in 2022. These additional deferred payments had an estimated present value at acquisition date of $163,355. The Company reduced redeemable noncontrolling interests by $149,335 and noncontrolling interests by $8,708. The difference between the purchase price and the noncontrolling interests of $42,780 was recorded in additional paid-in capital.

2014 Acquisitions

During 2014, the Company entered into several acquisitions and various non-material transactions with certain majority owned entities. Effective January 1, 2014, the Company acquired 60% of the equity interests of Luntz Global Partners LLC. Effective February 14, 2014, the Company acquired 65% of the equity interests of Kingsdale Partners LP. On June 3, 2014, the Company acquired a 100% equity interest in The House Worldwide Ltd. On July 31, 2014, Union Advertising Canada LP acquired 100% of the issued and outstanding stock of Trapeze Media Limited (“Trapeze”). Effective August 1, 2014, the Company acquired 65%

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MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

4. Acquisitions  – (continued)

of the equity interests of Hunter PR LLC. Effective August 18, 2014, the Company acquired a 75% interest in Albion Brand Communication Limited. In addition, in June 2014 and August 2014, the Company (through a subsidiary) entered into other non-material acquisitions.

The aggregate purchase price of these acquisitions had an estimated present value at acquisition date of $151,202 and consisted of total closing cash payments of $67,236, and additional deferred acquisition payments that are based on the financial results of the underlying businesses from 2014 to 2018 with final payments due in 2019. These additional deferred payments had an estimated present value at acquisition date of $83,966. An allocation of excess purchase price consideration of these acquisitions to the fair value of the net assets acquired resulted in identifiable intangibles of $64,733, consisting primarily of customer lists, a technology asset and covenants not to compete, and goodwill of $146,806, including the value of the assembled workforce. The identified assets will be amortized over a five to six year period in a manner represented by the pattern in which the economic benefits of such assets are expected to be realized. In addition, the Company has recorded $50,552 as the present value of noncontrolling interests and $13,327 as the present value of redeemable noncontrolling interests. The Company expects intangibles and goodwill of $149,232 to be tax deductible. In addition the Company recorded other income of $908 representing a gain on the previously held 18% interest in Trapeze.

Noncontrolling Interests

Changes in the Company’s ownership interests in our less than 100% owned subsidiaries during the three years ended December 31, were as follows:

Net Loss Attributable to MDC Partners Inc. and

Transfers (to) from the Noncontrolling Interests

	Year Ended December 31,
	2016			2015			2014
Net loss attributable to MDC Partners Inc.	$	(45,839	)	$	(35,454	)	$	(21,411	)
Transfers (to) from the noncontrolling interests
Increase (decrease) in MDC Partners Inc. paid-in capital for purchase of equity interests in excess of noncontrolling interests and redeemable noncontrolling interests	22,776			(42,780		)	(8,992		)
Net transfers (to) from noncontrolling interests	$	22,776		$	(42,780	)	$	(8,992	)
Change from net loss attributable to MDC Partners Inc. and transfers (to) from noncontrolling interests	$	(23,063	)	$	(78,234	)	$	(30,403	)

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MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

5. Fixed Assets  

The following is a summary of the Company’s fixed assets as of December 31:

	2016							2015
	Cost		Accumulated Depreciation			Net Book Value		Cost		Accumulated Depreciation			Net Book Value
Computers, furniture and fixtures	$	91,909	$	(64,030	)	$	27,879	$	87,213	$	(62,901	)	$	24,312
Leasehold improvements	91,601		(41,103		)	50,498		72,898		(33,653		)	39,245
	$	183,510	$	(105,133	)	$	78,377	$	160,111	$	(96,554	)	$	63,557

At December 31, 2016 and 2015, included in fixed assets are assets under capital lease obligations with a cost of $1,967 and $1,959, respectively, and accumulated depreciation of $1,316 and $1,378, respectively. Depreciation expense for the years ended December 31, 2016, 2015, and 2014 was $22,293, $18,871 and $16,462, respectively.

6. Accruals and Other Liabilities

At December 31, 2016 and 2015, accruals and other liabilities included accrued media of $201,872 and $187,540, respectively; and amounts due to noncontrolling interest holders for their share of profits, which will be distributed within the next twelve months, of $4,154 and $5,473, respectively.

Changes in noncontrolling interest amounts included in accrued and other liabilities for the three years ended December 31, were as follows:

	Noncontrolling Interests
Balance at December 31, 2013	$	5,210
Income attributable to noncontrolling interests	6,890
Distributions made	(6,523		)
Other(1)	437
Balance at December 31, 2014	$	6,014
Income attributable to noncontrolling interests	9,054
Distributions made	(9,503		)
Other(1)	(92		)
Balance at December 31, 2015	$	5,473
Income attributable to noncontrolling interests	5,218
Distributions made	(7,772		)
Other(1)	1,235
Balance at December 31, 2016	$	4,154

(1) Other consists primarily of business acquisitions, sale of a business, step-up transactions, and cumulative translation adjustments.

7. Financial Instruments

Financial assets, which include cash and cash equivalents and accounts receivable, have carrying values which approximate fair value due to the short-term nature of these assets. Financial liabilities with carrying values approximating fair value due to short-term maturities include accounts payable. Deferred acquisition consideration is recorded at fair value. The revolving credit agreement is a variable rate debt, the carrying value of which approximates fair value. The Company’s notes are a fixed rate debt instrument recorded at the carrying value. See Note 13 for the fair value. The fair value of financial commitments, guarantees and letters of credit, are based on the stated value of the underlying instruments. Guarantees have been issued in conjunction with the disposition of businesses in 2001 and 2003 and letters of credit have been issued in the normal course of business.

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MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except Share and per Share Amounts)

8. Goodwill and Intangible Assets

As of December 31, the gross and net amounts of acquired intangible assets were as follows:

Goodwill	Global Integrated Agencies			Domestic Creative Agencies			Specialist Communications			Media Services		All Other			Total
Balance at December 31, 2014	$	370,094		$	37,117		$	98,497		$	136,033	$	209,632		$	851,373
Acquired goodwill	—			—			—			6,253		37,401			43,654
Acquisition purchase price adjustments	(998		)	133			(879		)	—		(684		)	(2,428		)
Foreign currency translation	(4,937		)	(579		)	(40		)	—		(16,742		)	(22,298		)
Balance at December 31, 2015	$	364,159		$	36,671		$	97,578		$	142,286	$	229,607		$	870,301
Acquired goodwill	24,778			—			—			—		—			24,778
Disposition	—			—			—			—		(764		)	(764		)
Impairment loss recognized	—			—			(18,893		)	—		(29,631		)	(48,524		)
Transfer of goodwill between segments (1)	(34,400		)	—			—			34,400		—			—
Foreign currency translation	(3,821		)	91			6			—		2,692			(1,032		)
Balance at December 31, 2016	$	350,716		$	36,762		$	78,691		$	176,686	$	201,904		$	844,759

⁽¹⁾ During the year ended December 31, 2016, the Company transferred a component of one reporting unit to another reporting unit. As a result, based on the relative fair value, we transferred $34.4 million of goodwill from the Global Integrated Agencies reportable segment to Media Services, which represented the portion of the goodwill associated with the component.  An interim impairment analysis was performed both before and after the transfer, noting no impairment indicators were present.

	For the Year Ended December 31,
Intangible Assets	2016			2015
Trademarks (indefinite life)	$	17,780		$	17,780
Customer relationships – gross	$	121,408		$	135,919
Less accumulated amortization	(80,432		)	(97,604		)
Customer relationships – net	$	40,976		$	38,315
Other intangibles – gross	$	43,656		$	33,638
Less accumulated amortization	(17,341		)	(17,351		)
Other intangibles – net	$	26,315		$	16,287
Total intangible assets	$	182,844		$	187,337
Less accumulated amortization	(97,773		)	(114,955		)
Total intangible assets – net	$	85,071		$	72,382

The results of the annual goodwill impairment test performed as of October 1, 2015, indicated fair values in excess of carrying amounts for each of the Company’s reporting units. The Company noted no significant events or conditions during the first and second quarter of 2016 that would have affected the conclusions from the annual assessment.

During the third quarter of 2016, the Company changed its operating segments, as a result of the management structure change as discussed in Note 14, which resulted in a corresponding change to the Company’s reporting units. The Company performed interim goodwill testing on one of its experiential reporting units and one non-material reporting unit, resulting in a partial impairment of goodwill of $27,893 and $1,738 relating to the experiential reporting unit and non-material reporting unit, respectively. Additionally, as a result of the annual goodwill impairment test performed as of October 1, 2016, the Company recognized a partial impairment of goodwill of $18,893 relating to one of the Company’s strategic communications reporting units. See Note 2 for further information.

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MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except Share and per Share Amounts)

The total accumulated goodwill impairment charges are $95,407 through December 31, 2016. During the year for 2016, the Company wrote off goodwill of $764 related to the sale of its ownership interests in Bryan Mills to the noncontrolling shareholders. This write off is included in other income (expense).

The weighted average amortization periods for customer relationships are six years and other intangible assets are eight years. In total, the weighted average amortization period is seven years. Amortization expense related to amortizable intangible assets for the years ended December 31, 2016, 2015, and 2014 was $21,726, $30,024, and $29,749, respectively.

The estimated amortization expense for the five succeeding years is as follows:

Year	Amortization
2017	$	16,677
2018	$	11,525
2019	$	7,346
2020	$	4,999
2021	$	3,411

9. Income Taxes

The components of the Company’s income (loss) from continuing operations before income taxes and equity in earnings of non-consolidated affiliates by taxing jurisdiction for the years ended December 31, were:

	2016			2015			2014
Income (Loss):
U.S.	$	(16,661	)	$	23,180		$	46,728
Non-U.S.	(33,055		)	(40,596		)	(31,619		)
	$	(49,716	)	$	(17,416	)	$	15,109

The provision (benefit) for income taxes by taxing jurisdiction for the years ended December 31, were:

	2016			2015			2014
Current tax provision
U.S. federal	$	—		$	—		$	—
U.S. state and local	(1,520		)	1,375			907
Non-U.S.	2,154			2,465			552
	634			3,840			1,459
Deferred tax provision (benefit):
U.S. federal	5,785			5,359			11,173
U.S. state and local	(3,550		)	2,877			1,554
Non-U.S.	(12,273		)	(8,315		)	(4,410		)
	(10,038		)	(79		)	8,317
Income tax provision (benefit)	$	(9,404	)	$	3,761		$	9,776

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MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

9. Income Taxes – (continued)

A reconciliation of income tax expense (benefit) using the statutory Canadian federal and provincial income tax rate compared with actual income tax expense for the years ended December 31, is as follows:

	2016			2015			2014
Income (loss) from continuing operations before income taxes, equity in non-consolidated affiliates and noncontrolling interest	$	(49,716	)	$	(17,416	)	$	15,109
Statutory income tax rate	26.5		%	26.5		%	26.5		%
Tax expense (benefit) using statutory income tax rate	(13,175		)	(4,615		)	4,004
State and foreign taxes	(94		)	3,524			1,459
Non-deductible stock-based compensation	1,123			665			1,982
Other non-deductible expense	1,848			163			3,075
Change to valuation allowance on items affecting taxable income	6,605			3,565			(643		)
Effect of the difference in federal and statutory rates	(4,579		)	1,906			2,222
Noncontrolling interests	(1,287		)	(2,399		)	(1,826		)
Other, net	155			952			(497		)
Income tax expense (benefit)	$	(9,404	)	$	3,761		$	9,776
Effective income tax rate	18.9		%	(21.6		)%	64.7		%

The 2016 effective income tax rate was lower than the statutory rate due primarily to non-deductible stock-based compensation of $1,848, an increase in the valuation allowance of $6,605, and the effect of the difference in the U.S. and foreign federal rates and the Canadian statutory rate of $4,579. All of this resulted in a lower tax benefit.

The 2015 effective income tax rate was higher than the statutory rate due primarily to non-deductible stock-based compensation of $665 and an increase in the valuation allowance of $3,565, and the effect of the difference in the U.S. and foreign federal rates and the Canadian statutory rate of $1,906. All of this resulted in a tax expense verses a tax benefit.

The 2014 effective income tax rate was higher than the statutory rate due primarily to non-deductible stock-based compensation of $1,982, an decrease in the valuation allowance of $643, and the effect of the difference in the U.S. and foreign federal rates and the Canadian statutory rate of $2,222.

Income taxes receivable were $1,506 and $615 at December 31, 2016 and 2015, respectively, and were included in other current assets on the balance sheet. Income taxes payable were $4,547 and $7,019 at December 31, 2016 and 2015, respectively, and were included in accrued and other liabilities on the balance sheet. It is the Company’s policy to classify interest and penalties arising in connection with the under payment of income taxes as a component of income tax expense.

80

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

9. Income Taxes – (continued)

The tax effects of significant temporary differences representing deferred tax assets and liabilities at December 31, were as follows:

	2016			2015
Deferred tax assets:
Capital assets and other	$	6,758		$	7,334
Net operating loss carry forwards	44,305			39,454
Interest deductions	12,146			12,266
Refinancing charge	7,413			144
Goodwill and intangibles	179,029			178,835
Stock compensation	2,581			3,033
Pension plan	5,095			3,770
Unrealized foreign exchange	15,237			15,548
Capital loss carry forwards	10,957			10,630
Accounting reserves	7,138			6,701
Gross deferred tax asset	290,659			277,715
Less: valuation allowance	(248,866		)	(247,967		)
Net deferred tax assets	41,793			29,748
Deferred tax liabilities:
Deferred finance charges	(333		)	(323		)
Capital assets and other	(388		)	(797		)
Goodwill amortization	(109,638		)	(100,743		)
Total deferred tax liabilities	(110,359		)	(101,863		)
Net deferred tax asset (liability)	$	(68,566	)	$	(72,115	)
Disclosed as:
Deferred tax assets	$	41,793		$	29,748
Deferred tax liabilities	(110,359		)	(101,863		)
	$	(68,566	)	$	(72,115	)

The Company has U.S. federal net operating loss carry forwards of $21,339 and non-U.S. net operating loss carry forwards of $70,517. These carry forwards expire in years 2016 through 2031. The Company also has total indefinite loss carry forwards of $118,413. These indefinite loss carry forwards consist of $35,723 relating to the U.S. and $82,691 which are related to capital losses from the Canadian operations. In addition, the Company has net operating loss carry forwards for various state taxing jurisdictions of approximately $188,367.

The Company records a valuation allowance against deferred income tax assets when management believes it is more likely than not that some portion or all of the deferred income tax assets will not be realized. Management considers factors such as the reversal of deferred income tax liabilities, projected future taxable income, the character of the income tax asset, tax planning strategies, changes in tax laws and other factors. A change to these factors could impact the estimated valuation allowance and income tax expense.

The valuation allowance has been recorded to reduce our deferred tax asset to an amount that is more likely than not to be realized, and is based upon the uncertainty of the realization of certain U.S., non-U.S. and state deferred tax assets. The increase in the Company’s valuation allowance charged to the statement of operations for each of the years ended December 31, 2016, 2015 and was $6,605, and $3,565, respectively. The Company's valuation allowance decreased $643 in 2014. In addition, a benefit of $1,112 has been recorded in accumulated other comprehensive loss relating to the defined pension plan for the years ended December 31, 2014. There was no benefit or expense related to the defined pension plan recorded in 2015 and 2016.

81

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

9. Income Taxes – (continued)

Deferred taxes are not provided for temporary differences representing earnings of subsidiaries that are intended to be permanently reinvested. The potential deferred tax liability associated with these undistributed earnings is not material.

During the second quarter of 2017, the Company identified and recorded out-of-period adjustments related to the misapplication of ASC 740 and ASC 850-740 accounting policies as they applied to the calculation of deferred tax liabilities. See Note 2 for details.

As of December 31, 2016 and 2015, the Company recorded a liability for unrecognized tax benefits as well as applicable penalties and interest in the amount of $1,543 and $4,200. As of December 31, 2016 and 2015, accrued penalties and interest included in unrecognized tax benefits were approximately $78 and $595. The Company identified an uncertainty relating to the future tax deductibility of certain intercompany fees. To the extent that such future benefit will be established, the resolution of this position will have no effect with respect to the financial statements. If these unrecognized tax benefits were to be recognized, it would affect the Company’s effective tax rate.

Changes in the Company’s reserve is as follows:
Balance at December 31, 2013	$	3,073
Charges to income tax expense	—
Balance at December 31, 2014	3,073
Charges to income tax expense	960
Settlement of uncertainty	(428		)
Balance at December 31, 2015	3,605
Charges to income tax expense	(1,261		)
Settlement of uncertainty	(879		)
Balance at December 31, 2016	$	1,465

The Company does not expect its unrecognized tax benefits to change significantly over the next 12 months.

The Company has completed U.S. federal tax audits through 2013 and has completed a non-U.S. tax audit through 2009.

10. Discontinued Operations

In the fourth quarter of 2014, the Company made the decision to strategically sell the net assets of Accent. Effective May 31, 2015, the Company completed the sale of Accent for an aggregate selling price of $17,102, net of transaction expenses. There were no discontinued operations for the year ended December 31, 2016.

Included in discontinued operations in the Company’s consolidated statements of operations for the years ended December 31, 2015 and 2014 were the following:

	Years Ended December 31,
		2015			2014
Revenue		$	27,025		$	70,041
Operating loss		(322		)	(4,704		)
Other expense		(752		)	(458		)
Loss on disposal		(5,207		)	(16,098		)
Net loss from discontinued operations		$	(6,281	)	$	(21,260	)

For the year ended December 31, 2014, the loss on disposal included a goodwill write off of $15,564.

At December 31, 2016 and 2015, the Company had no assets held for sale.

82

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

11. Debt

As of December 31, the Company’s indebtedness was comprised as follows:

	2016			2015
Revolving credit facility	$	54,425		$	—
6.50% Notes due 2024	900,000			—
6.75% Notes due 2020	—			735,000
Original issue premium	—			5,838
Debt issuance costs	(18,420		)	(12,625		)
	936,005			728,213
Obligations under capital leases	431			670
	936,436			728,883
Less:
Current portion	228			470
	$	936,208		$	728,413

Interest expense related to long-term debt for the years ended December 31, 2016, 2015, and 2014 was $56,468, $53,090 and $50,832, respectively. For the year ended December 31, 2016, the Company recorded a charge for the loss on redemption of the 6.75% Notes of $33,298, which included accrued interest, related premiums, fees and expenses, write offs of unamortized original issue premium, and unamortized debt issuance costs. For the years ended December 31, 2016, 2015, and 2014, interest expense included income of $312, $1,178, $975, related to the amortization of the original issue premium. For the years ended December 31, 2016, 2015, and 2014, interest expense included $255, $2,543 and $2,186, respectively, of present value adjustments for fixed deferred acquisition payments.

The amortization of deferred finance costs included in interest expense were $3,022, $3,448 and $3,222 for the years ended December 31, 2016, 2015, and 2014, respectively.

6.50% Senior Notes

On March 23, 2016, MDC entered into an indenture (the “Indenture”) among MDC, its existing and future restricted subsidiaries that guarantee, or are co-borrowers under or grant liens to secure, the Credit Agreement, as guarantors (the “Guarantors”) and The Bank of New York Mellon, as trustee, relating to the issuance by MDC of $900,000 aggregate principal amount of the 6.50% Notes. The 6.50% Notes were sold in a private placement in reliance on exceptions from registration under the Securities Act of 1933. The 6.50% Notes bear interest at a rate of 6.50% per annum, accruing from March 23, 2016. Interest is payable semiannually in arrears on May 1 and November 1 of each year, beginning November 1, 2016. The 6.50% Notes mature on May 1, 2024, unless earlier redeemed or repurchased. The Company received net proceeds from the offering of the 6.50% Notes equal to approximately $880,000. The Company used the net proceeds to redeem all of its existing 6.75% Notes, together with accrued interest, related premiums, fees and expenses and recorded a charge for the loss on redemption of such notes of $33,298, including write offs of unamortized original issue premium and debt issuance costs. Remaining proceeds were used for general corporate purposes, including funding of deferred acquisition consideration.

The 6.50% Notes are guaranteed on a senior unsecured basis by all of MDC’s existing and future restricted subsidiaries that guarantee, or are co-borrowers under or grant liens to secure, the Credit Agreement. The 6.50% Notes are unsecured and unsubordinated obligations of MDC and rank (i) equally in right of payment with all of MDC’s or any Guarantor’s existing and future senior indebtedness, (ii) senior in right of payment to MDC’s or any Guarantor’s existing and future subordinated indebtedness, (iii) effectively subordinated to all of MDC’s or any Guarantor’s existing and future secured indebtedness to the extent of the collateral securing such indebtedness, including the Credit Agreement, and (iv) structurally subordinated to all existing and future liabilities of MDC’s subsidiaries that are not Guarantors.

MDC may, at its option, redeem the 6.50% Notes in whole at any time or in part from time to time, on and after May 1, 2019 (i) at a redemption price of 104.875% of the principal amount thereof if redeemed during the twelve-month period beginning on May 1, 2019, (ii) at a redemption price of 103.250% of the principal amount thereof if redeemed during the twelve-month period beginning on May 1, 2020, (iii) at a redemption price of 101.625% of the principal amount thereof if redeemed during the twelve-

83

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

11. Debt – (continued)

month period beginning on May 1, 2021, and (iv) at a redemption price of 100% of the principal amount thereof if redeemed on May 1, 2022 and thereafter.

Prior to May 1, 2019, MDC may, at its option, redeem some or all of the 6.50% Notes at a price equal to 100% of the principal amount of the 6.50% Notes plus a “make whole” premium and accrued and unpaid interest. MDC may also redeem, at its option, prior to May 1, 2019, up to 35% of the 6.50% Notes with the proceeds from one or more equity offerings at a redemption price of 106.50% of the principal amount thereof.

If MDC experiences certain kinds of changes of control (as defined in the Indenture), holders of the 6.50% Notes may require MDC to repurchase any 6.50% Notes held by them at a price equal to 101% of the principal amount of the 6.50% Notes plus accrued and unpaid interest. In addition, if MDC sells assets under certain circumstances, it must apply the proceeds from such sale and offer to repurchase the 6.50% Notes at a price equal to 100% of the principal amount plus accrued and unpaid interest.

The Indenture includes covenants that, among other things, restrict MDC’s ability and the ability of its restricted subsidiaries (as defined in the Indenture) to incur or guarantee additional indebtedness; pay dividends on or redeem or repurchase the capital stock of MDC; make certain types of investments; create restrictions on the payment of dividends or other amounts from MDC’s restricted subsidiaries; sell assets; enter into transactions with affiliates; create liens; enter into sale and leaseback transactions; and consolidate or merge with or into, or sell substantially all of MDC’s assets to, another person. These covenants are subject to a number of important limitations and exceptions. The 6.50% Notes are also subject to customary events of default, including a cross-payment default and cross-acceleration provision.

Redemption of 6.75% Senior Notes

On March 23, 2016, the Company redeemed the 6.75% Notes in whole at a redemption price of 103.375% of the principal amount thereof with the proceeds from the issuance of the 6.50% Notes.

Credit Agreement

On March 20, 2013, MDC, Maxxcom Inc. (a subsidiary of MDC) and each of their subsidiaries party thereto entered into an amended and restated, $225 million senior secured revolving credit agreement due 2018 (the “Credit Agreement”) with Wells Fargo Capital Finance, LLC, as agent, and the lenders from time to time party thereto. Advances under the Credit Agreement are to be used for working capital and general corporate purposes, in each case pursuant to the terms of the Credit Agreement. Capitalized terms used in this section and not otherwise defined have the meanings set forth in the Credit Agreement.

Effective October 23, 2014, MDC and its subsidiaries entered into an amendment to its Credit Agreement. The amendment: (i) expanded the commitments under the facility by $100 million, from $225 million to $325 million; (ii) extended the date by an additional eighteen months to September 30, 2019; (iii) reduced the base borrowing interest rate by 25 basis points (the applicable margin for borrowing is 1.00% in the case of Base Rate Loans and 1.75% in the case of LIBOR Rate Loans) ; and (iv) modified certain covenants to provide the Company with increased flexibility to fund its continued growth and other general corporate purposes.

Effective May 3, 2016, MDC and its subsidiaries entered into an additional amendment to its Credit Agreement. The amendment: (i) extends the date by an additional nineteen months to May 3, 2021; (ii) reduces the base borrowing interest rate by 25 basis points; (iii) provides the Company the ability to borrow in foreign currencies; and (iv) certain other modifications to provide additional flexibility in operating the Company’s business.

Advances under the Credit Agreement bear interest as follows: (a)(i) LIBOR Rate Loans bear interest at the LIBOR Rate and (ii) Base Rate Loans bear interest at the Base Rate, plus (b) an applicable margin. The initial applicable margin for borrowing is 1.00% in the case of Base Rate Loans and 1.75% in the case of LIBOR Rate Loans. In addition to paying interest on outstanding principal under the Credit Agreement, MDC is required to pay an unused revolver fee to lenders under the Credit Agreement in respect of unused commitments thereunder.

The Company is currently in compliance with all of the terms and conditions of its Credit Agreement, and management believes, based on its current financial projections, that the Company will be in compliance with the covenants over the next twelve months. At December 31, 2016, there were $54,425 of borrowings under the Credit Agreement.

At December 31, 2016, the Company had issued $4,360 of undrawn letters of credit.

At December 31, 2016 and 2015, accounts payable included $80,193 and $73,558, respectively, of outstanding checks.

84

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

11. Debt – (continued)

Future Principal Repayments

Future principal repayments, including capital lease obligations, for the years ended December 31, and in aggregate, are as follows:

Period	Amount
2016	$	228
2017	91
2018	86
2019	22
2020	54,429
2021 and thereafter	900,000
	$	954,856

Capital Leases

Future minimum capital lease payments for the years ended December 31 and in aggregate, are as follows:

Period	Amount
2016	$	248
2017	102
2018	93
2019	23
2020	5
2021 and thereafter	—
	471
Less: imputed interest	(40		)
	431
Less: current portion	(228		)
	$	203

12. Share Capital

The authorized share capital of the Company is as follows:

(a) Authorized Share Capital

Class A Shares

An unlimited number of subordinate voting shares, carrying one vote each, entitled to dividends equal to or greater than Class B shares, convertible at the option of the holder into one Class B share for each Class A share after the occurrence of certain events related to an offer to purchase all Class B shares.

Class B Shares

An unlimited number, carrying 20 votes each, convertible at any time at the option of the holder into one Class A share for each Class B share.

Preferred A Shares

An unlimited number, non-voting, issuable in series.

85

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

12. Share Capital – (continued)

(b) Employee Stock Incentive Plan

On May 26, 2005, the Company’s shareholders approved the Company’s 2005 Stock Incentive Plan (the “2005 Incentive Plan”). The 2005 Incentive Plan authorizes the issuance of awards to employees, officers, directors and consultants of the Company with respect to 3,000,000 shares of MDC Partners’ Class A Subordinate Voting Shares or any other security into which such shares shall be exchanged. On June 1, 2007 and on June 2, 2009, the Company’s shareholders approved a total additional authorized Class A Shares of 3,750,000 to be added to the 2005 Incentive Plan for a total of 6,750,000 authorized Class A Shares. In addition, the plan was amended to allow shares under this plan to be used to satisfy share obligations under the Stock Appreciation Rights Plan (the “SARS” Plan”). On May 30, 2008, the Company’s shareholders approved the 2008 Key Partner Incentive Plan, which provides for the issuance of 900,000 Class A Shares. On June 1, 2011, the Company’s shareholders approved the 2011 Stock Incentive Plan, which provides for the issuance of up to 3,000,000 Class A Shares. In June 2013, the Company's shareholders approved an amendment to the SARS Plan to permit the Company to issue shares authorized under the SARS Plan to satisfy the grant and vesting awards under the 2011 Stock Incentive Plan. On June 1, 2016, the Company's shareholders approved the 2016 Stock Incentive Plan, which provides for the issuance of up to 1,500,000 Class A shares.

The following table summarizes information about time based and financial performance-based restricted stock and restricted stock unit awards granted under the 2005 Incentive Plan, 2008 Key Partner Incentive Plan, 2011 Stock Incentive Plan and 2016 Stock Incentive Plan:

	Performance Based Awards				Time Based Awards
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Balance at December 31, 2013	462,666		$	9.79	913,788		$	12.54
Granted	120,578		25.09		293,705		21.99
Vested	(497,214	)	9.62		(264,478	)	10.88
Forfeited	—		—		(26,874	)	11.52
Balance at December 31, 2014	86,030		$	23.14	916,141		$	16.36
Granted	80,000		21.76		191,155		20.42
Vested	(68,067	)	25.21		(297,794	)	12.35
Forfeited	—		—		(35,000	)	21.69
Balance at December 31, 2015	97,963		$	19.61	774,502		$	18.71
Granted	10,000		14.00		392,500		12.53
Vested	(17,963	)	10.02		(380,367	)	16.02
Forfeited	—		—		(46,000	)	20.39
Balance at December 31, 2016	90,000		$	20.90	740,635		$	16.71

The total fair value of restricted stock and restricted stock unit awards, which vested during the years ended December 31, 2016, 2015 and 2014 was $6,272, $5,394 and $7,659, respectively. In connection with the vesting of these awards, the Company included in the taxable loss the amounts of $5,429, $4,678 and $11,874 in 2016, 2015 and 2014, respectively. At December 31, 2016, the weighted average remaining contractual life for performance based awards was 1.87 years and for time based awards was 1.65 years. At December 31, 2016, the fair value of all restricted stock and restricted stock unit awards was $5,441. The term of these awards is three years with vesting up to three years. At December 31, 2016, the unrecognized compensation expense for these awards was $7,105 and will be recognized through 2019. At December 31, 2016, there were 1,934,861 awards available to grant under all equity plans.

In addition, the Company awarded restricted stock and restricted stock unit awards of which 523,321 awarded shares were outstanding as of December 31, 2016. The vesting of these awards are contingent upon the Company meeting a cumulative three year earnings target and continued employment through the vesting date. Once the Company defines the earnings target, the grant date is established and the Company will record the compensation expense over the vesting period.

Prior to adoption of the 2005 Incentive Plan, the Company’s Prior 2003 Plan provided for grants of up to 2,836,179 options to employees, officers, directors and consultants of the Company. All the options granted were for a term of five years from the

86

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

12. Share Capital – (continued)

date of the grant and vest 20% on the date of grant and a further 20% on each anniversary date. In addition, the Company granted 802,440 options, on the privatization of Maxxcom, with a term of no more than 10 years from initial date of grant by Maxxcom and vest 20% in each of the first two years with the balance vesting on the third anniversary of the initial grant.

Information related to share option transactions grant under all plans over the past three years is summarized as follows:

	Options Outstanding			Options Exercisable			Non Vested Options
	Number Outstanding	Weighted Average Price per Share		Number Outstanding	Weighted Average Price per Share
Balance at December 31, 2013	112,500	$	6.03	112,500	$	6.03	—
Vested	—	—					—
Granted	—	—					—
Exercised	—	—					—
Expired and cancelled	—	—					—
Balance at December 31, 2014	112,500	$	5.70	112,500	$	5.70	—
Vested	—	—					—
Granted	—	—					—
Exercised	37,500	4.72					—
Expired and cancelled	—	—					—
Balance at December 31, 2015	75,000	$	5.28	75,000	$	5.28	—
Vested	—	—					—
Granted	—	—					—
Exercised	37,500	5.97					—
Expired and cancelled	—	—					—
Balance at December 31, 2016	37,500	$	5.83	37,500	$	5.83	—

At December 31, 2016, the intrinsic value of vested options and the intrinsic value of all options was $27. For options exercised during 2016, 2015 and 2014, the Company received cash proceeds of nil, $224 and nil, respectively. The Company did not receive any windfall tax benefits. The intrinsic value of options exercised during 2016, 2015 and 2014 was $471, $471 and nil, respectively. At December 31, 2016, the weighted average remaining contractual life of all outstanding options was 0.5 years and for all vested options was 0.5 years. At December 31, 2016, the unrecognized compensation expense of all options was nil.

Share options outstanding as of December 31, 2016 are summarized as follows:

	Options Outstanding				Options Exercisable
Exercise Price	Outstanding Number	Weighted Average Contractual Life	Weighted Average Price per Share		Exercisable Number	Weighted Average Price per Share		Weighted Average Contractual Life
$5.83	37,500	0.50	$	5.83	37,500	$	5.83	0.50

The Company has reserved a total of 2,753,496 Class A shares in order to meet its obligations under various conversion rights, warrants and employee share related plans. At December 31, 2016 there were 781,135 shares available for future option and similar grants.

87

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

13. Fair Value Measurements

 Authoritative guidance for fair value establishes a framework for measuring fair value. A fair value measurement assumes a transaction to sell an asset or transfer a liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability.

 In order to increase consistency and comparability in fair value measurements, the guidance establishes a hierarchy for observable and unobservable inputs used to measure fair value into three broad levels, which are described below: 

• Level 1 - Quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities. The fair value hierarchy gives the highest priority to Level 1 inputs.

• Level 2 - Observable prices that are based on inputs not quoted on active markets, but corroborated by market data.

• Level 3 - Unobservable inputs are used when little or no market data is available. The fair value hierarchy gives the lowest priority to Level 3 inputs.

In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible as well as considers counterparty credit risk in its assessment of fair value.

On a nonrecurring basis, the Company uses fair value measures when analyzing asset impairment. Long-lived assets and certain identifiable intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If it is determined such indicators are present and the review indicates that the assets will not be fully recoverable, based on undiscounted estimated cash flows over the remaining amortization periods, their carrying values are reduced to estimated fair value. Measurements based on undiscounted cash flows are considered to be Level 3 inputs. During the fourth quarter of each year, the Company evaluates goodwill and indefinite-lived intangibles for impairment at the reporting unit level. For each acquisition, the Company performed a detailed review to identify intangible assets and a valuation is performed for all such identified assets. The Company used several market participant measurements to determine estimated value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies. The amounts allocated to assets acquired and liabilities assumed in the acquisitions were determined using level three inputs. Fair value for property and equipment was based on other observable transactions for similar property and equipment. Accounts receivable represents the best estimate of balances that will ultimately be collected, which is based in part on allowance for doubtful accounts reserve criteria and an evaluation of the specific receivable balances.

Financial Liabilities Measured at Fair Value on a Recurring Basis

The following tables present certain information for our financial assets that is measured at fair value on a recurring basis at December 31:

	Level 1 2016		Level 1 2015
	Carrying Amount	Fair Value	Carrying Amount	Fair Value
Liabilities:
6.50% Senior Notes due 2024	900,000	812,250	—	—
6.75% Senior Notes due 2020	—	—	740,838	765,319

Our long-term debt includes fixed rate debt. The fair value of this instrument is based on quoted market prices.

88

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

13. Fair Value Measurements – (continued)

The following table presents changes in deferred acquisition consideration for the years ended December 31:

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	2016			2015
Beginning balance of contingent payments	$	306,734		$	172,227
Payments (1)	(105,169		)	(77,301		)
Additions (2)	16,132			174,530
Redemption value adjustments (3)	13,930			41,636
Other (4)	(6,412		)	—
Foreign translation adjustment	(461		)	(4,358		)
Ending balance of contingent payments	$	224,754		$	306,734

(1) For the year ended December 31, 2016, payments include $10,458 of deferred acquisition consideration settled through the issuance of 691,559 MDC Class A subordinate voting shares in lieu of cash.

(2) Additions are the initial estimated deferred acquisition payments of new acquisitions and step-up transactions completed within that fiscal period.

(3) Redemption value adjustments are fair value changes from the Company’s initial estimates of deferred acquisition payments, including the accretion of present value and stock-based compensation charges relating to acquisition payments that are tied to continued employment.

(4) Other is comprised of (i) $2,360 transfered to shares to be issued related to 100,000 MDC Class A subordinate voting shares to be issued contingent on specific thresholds of future earnings that management expects to be attained; and, (ii) $4,052 of contingent payments eliminated through the acquisition of incremental ownership interests. See Note 4.

In addition to the above amounts, there are fixed payments of $4,810 and $40,370 for total deferred acquisition consideration of $229,564 and $347,104, which reconciles to the consolidated balance sheets at December 31, 2016 and 2015, respectively.

The Company includes the payments of all deferred acquisition consideration in financing activities in the Company’s consolidated statement of cash flows, as the Company believes these payments to be seller-related financing activities, which is the predominant source of cash flows. The FASB recently issued new guidance regarding the classification of cash flows for contingent consideration that is effective January 1, 2018. See Note 17 for further information.

Level 3 payments relate to payments made for deferred acquisition consideration. Level 3 grants relate to contingent purchase price obligations related to acquisitions and are recorded on the balance sheet at the acquisition date fair value. The estimated liability is determined in accordance with various contractual valuation formulas that may be dependent on future events, such as the growth rate of the earnings of the relevant subsidiary during the contractual period and, in some cases, the currency exchange rate as of the date of payment. Level 3 redemption value adjustments relate to the remeasurement and change in these various contractual valuation formulas as well as adjustments of present value.

 At December 31, 2016 and 2015, the carrying amount of the Company’s financial instruments, including cash and cash equivalents, accounts receivable and accounts payable, approximated fair value because of their short-term maturity. The Company does not disclose the fair value for equity method investments or investments held at cost as it is not practical to estimate fair value since there is no readily available market data.

Non-financial Assets and Liabilities that are Measured at Fair Value on a Nonrecurring Basis

On a nonrecurring basis, the Company uses fair value measures when analyzing asset impairment. Long-lived assets and certain identifiable intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If it is determined such indicators are present and the review indicates that the assets will not be fully recoverable, based on undiscounted estimated cash flows over the remaining amortization periods, their carrying values are reduced to estimated fair value. Measurements based on undiscounted cash flows are considered to be Level 3 inputs. During the fourth quarter of each year, the Company evaluates goodwill and indefinite-lived intangibles for impairment at the reporting unit level. For each acquisition, the Company performed a detailed review to identify intangible assets and a

89

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

13. Fair Value Measurements – (continued)

valuation is performed for all such identified assets. The Company used several market participant measurements to determine estimated value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies. The amounts allocated to assets acquired and liabilities assumed in the acquisitions were determined using Level 3 inputs. Fair value for property and equipment was based on other observable transactions for similar property and equipment. Accounts receivable represents the best estimate of balances that will ultimately be collected, which is based in part on allowance for doubtful accounts reserve criteria and an evaluation of the specific receivable balances.

14. Segment Information

The Company determines an operating segment if a component (i) engages in business activities from which it earns revenues and incurs expenses, (ii) has discrete financial information, and is (iii) regularly reviewed by the Chief Operating Decision Maker (“CODM”) to make decisions regarding resource allocation for the segment and assess its performance. During June 2016, the Company entered into a Separation and Release Agreement with its former Chief Operating Officer in connection with a limited restructuring of the Company’s corporate department. This change to the Company’s management structure was designed to provide the CODM greater visibility into the operating performance of individual Partner Firms and resulted in a corresponding change in the level at which the CODM reviews the operating results of such Partner Firms. As a result, in the third quarter of 2016, the Company concluded that each Partner Firm represents an operating segment. The Company then determined to aggregate its Partner Firms to report in one reportable segment along with an “All Other” category.

Based in part on feedback from the SEC, the Company performed a comprehensive review of its reportable segments to determine if aggregation of its operating segments is consistent with the principles detailed in ASC 280. Based on this review, it was determined that the Company misapplied ASC 280 in its identification of reportable segments following the change in the Company’s management structure. The Company incorrectly concluded that there was one reportable segment since the third quarter of 2016. This misapplication of the standard had no impact on the Company’s consolidated statements of operations, balance sheets, or cash flows. Based on the comprehensive review, the Company reassessed the aggregation of its operating segments, identified four new reportable segments and revised the composition of the “All Other” category. This determination was based upon a quantitative analysis of the expected and reported average long-term profitability for each Partner Firm, together with an assessment of the qualitative characteristics set forth in FASB ASC 280-10-50.

The four reportable segments that meet the appropriate aggregation criteria are as follows: “Global Integrated Agencies”; “Domestic Creative Agencies”; “Specialist Communications”; and “Media Services". In addition, the Company combines and discloses those Partner Firms that do not meet the aggregation criteria as “All Other”. The Company also reports corporate expenses, as further detailed below, as “Corporate”. All segments follow the same basis of presentation and accounting policies as those described in Note 1 and 2, respectively.

• The Global Integrated Agencies reportable segment is comprised of the Company’s six global, integrated Partner Firms with broad marketing communication capabilities, including advertising, branding, digital, social media, design and production services, serving multinational clients around the world. Each Partner Firm within this segment represents an operating segment which includes 72andSunny, Anomaly, Crispin Porter + Bogusky, Doner, Forsman & Bodenfors, and kbs. These Partner Firms share similar characteristics related to (i) the nature of their services; (ii) the type of global clients and the methods used to provide services; and (iii) the extent to which they may be impacted by global economic and geopolitical risks. In addition, these Partner Firms compete with each other for new business and often have business move between them. The Company believes the expected average long-term profitability is similar among the Partner Firms aggregated in the Global Integrated Agencies segment.

• The Domestic Creative Agencies reportable segment is comprised of four Partner Firms that are national advertising agencies leveraging creative capabilities at their core. Each Partner Firm within this segment represents an operating segment which includes Colle + McVoy, Laird+Partners, Mono Advertising and Union. These Partner Firms share similar characteristics related to (i) the nature of their creative advertising services; (ii) the type of domestic client accounts and the methods used to provide services; and (iii) the extent to which they may be impacted by domestic economic and policy factors within North America. In addition, these Partner Firms compete with each other for new business and often have business move between them. The Company believes the expected average long-term profitability is similar among the Partner Firms aggregated in the Domestic Creative Agencies segment.

• The Specialist Communications reportable segment is comprised of seven Partner Firms that are each communications agencies with core service offerings in public relations and related communications services. Each Partner Firm within this segment represents an operating segment which includes Allison & Partners, Hunter PR, HL Group Partners, Kwittken,

90

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

14. Segment Information – (continued)

Luntz Global, Sloane & Company and Veritas. These Partner Firms share similar characteristics related to (i) the nature of their public relations and communication services, including content creation, social media and influencer marketing; (ii) the type of client accounts and the methods used to provide services; (iii) the extent to which they may be impacted by domestic economic and policy factors within North America; and (iv) the regulatory environment regarding public relations and social media. In addition, these Partner Firms compete with each other for new business and often have business move between them. The Company believes the expected average long-term profitability is similar among the Partner Firms aggregated in the Specialist Communications segment.

• The Media Services reportable segment is comprised of a unique single operating segment known as MDC Media Partners. MDC Media Partners is comprised of the Company’s network of stand-alone agencies with media buying and planning as their core competency, including the integrated platform Assembly. The agencies within this single operating segment share a Chief Executive Officer and Chief Financial Officer, who have operational oversight of these agencies. These agencies provide other services, including influencer marketing, content, insights & analytics, out-of-home, paid search, social media, lead generation, programmatic, artificial intelligence, and corporate barter. MDC Media Partners operates primarily in North America.

• All Other consists of the Company’s remaining Partner Firms that provide a range of diverse marketing communication services, but generally do not have similar services offerings or financial characteristics as those aggregated in the reportable segments. Each Partner Firm within the All Other category represents an operating segment which includes 6Degrees, Bruce Mau Design, Concentric Partners, Civilian, Gale Partners, Hello Design, Kenna, Kingsdale, Northstar Research Partners, Redscout, Relevent, Source Marketing, Team, Vitro, Yamamoto and Y Media Labs. The nature of the specialist services provided by these Partner Firms varies among each other and from those Partner Firms aggregated into the reportable segments. This results in these Partner Firms having current and long-term performance expectations inconsistent with those Partner Firms aggregated in the reportable segments.

• Corporate consists of corporate office expenses incurred in connection with the strategic resources provided to the Partner Firms, as well as certain other centrally managed expenses that are not fully allocated to the Partner Firms. These office and general expenses include (i) salaries and related expenses for corporate office employees, including employees dedicated to supporting the Partner Firms, (ii) occupancy expenses relating to properties occupied by all corporate office employees, (iii) other office and general expenses including professional fees for the financial statement audits and other public company costs, and (iv) certain other professional fees managed by the corporate office. Additional expenses managed by the corporate office that are directly related to the Partner Firms are allocated to the appropriate reportable segment and the All Other category.

Prior year results have been recast to reflect the new segment reporting.

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MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

14. Segment Information – (continued)

	Years Ended December 31,
	2016			2015			2014
Revenue:
Global Integrated Agencies	$	696,410		$	652,987		$	600,150
Domestic Creative Agencies	85,953			91,658			83,196
Specialist Communications	170,285			153,920			124,938
Media Services	131,498			132,419			120,852
All Other	301,639			295,272			294,376
Corporate	—			—			—
Total	$	1,385,785		$	1,326,256		$	1,223,512
Segment operating income (loss):
Global Integrated Agencies	$	58,505		$	66,161		$	67,290
Domestic Creative Agencies	16,583			17,535			14,266
Specialist Communications	1,939			18,047			16,242
Media Services	6,154			20,116			29,706
All Other	9,368			15,423			28,322
Corporate	(44,118		)	(65,172		)	(68,077		)
Total	$	48,431		$	72,110		$	87,749
Other Income (Expense):
Other income, net	414			7,238			689
Foreign exchange gain (loss)	(213		)	(39,328		)	(18,482		)
Interest expense and finance charges, net	(98,348		)	(57,436		)	(54,847		)
Income (loss) continuing operations before income taxes and equity in earnings of non-consolidated affiliates	(49,716		)	(17,416		)	15,109
Income tax expense (benefit)	(9,404		)	3,761			9,776
Income (loss) from continuing operations before equity in earnings of non-consolidated affiliates	(40,312		)	(21,177		)	5,333
Equity in earnings (loss) of non-consolidated affiliates	(309		)	1,058			1,406
Income (loss) from continuing operations	(40,621		)	(20,119		)	6,739
Income (loss) from discontinued operations attributable to MDC Partners Inc., net of taxes	—			(6,281		)	(21,260		)
Net income (loss)	(40,621		)	(26,400		)	(14,521		)
Net income attributable to the noncontrolling interest	(5,218		)	(9,054		)	(6,890		)
Net income (loss) attributable to MDC Partners Inc.	$	(45,839	)	$	(35,454	)	$	(21,411	)

92

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

14. Segment Information – (continued)

	Years Ended December 31,
	2016		2015		2014
Depreciation and amortization:
Global Integrated Agencies	$	21,447	$	20,599	$	17,410
Domestic Creative Agencies	1,653		1,855		1,809
Specialist Communications	6,637		11,201		8,272
Media Services	5,718		4,660		6,113
All Other	9,406		12,134		11,783
Corporate	1,585		1,774		1,785
Total	$	46,446	$	52,223	$	47,172
Stock-based compensation:
Global Integrated Agencies	$	12,141	$	6,981	$	5,043
Domestic Creative Agencies	634		644		394
Specialist Communications	3,629		1,510		2,050
Media Services	301		471		918
All Other	1,773		5,450		3,628
Corporate	2,525		2,740		5,663
Total	$	21,003	$	17,796	$	17,696
Capital expenditures:
Global Integrated Agencies	$	16,439	$	17,043	$	19,669
Domestic Creative Agencies	1,055		1,321		818
Specialist Communications	2,741		1,311		632
Media Services	5,110		825		475
All Other	4,054		2,704		3,485
Corporate	33		371		1,337
Total	$	29,432	$	23,575	$	26,416

A summary of the Company’s long-lived assets, comprised of fixed assets, goodwill and intangibles, net, as at December 31, is set forth in the following table.

	United States		Canada		Other		Total
Long-lived Assets
2016	$	67,617	$	5,887	$	4,873	$	78,377
2015	$	52,305	$	6,817	$	4,435	$	63,557
Goodwill and Intangible Assets
2016	$	736,334	$	121,987	$	71,509	$	929,830
2015	$	798,746	$	122,821	$	21,116	$	942,683

93

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

14. Segment Information – (continued)

A summary of the Company’s revenue as at December 31 is set forth in the following table.

	United States		Canada		Other		Total
Revenue:
2016	$	1,103,714	$	124,101	$	157,970	$	1,385,785
2015	$	1,085,051	$	129,039	$	112,166	$	1,326,256
2014	$	993,474	$	150,390	$	79,648	$	1,223,512

15. Related Party Transactions

Scott L. Kauffman is Chairman and Chief Executive Officer of the Company. His daughter, Sarah Kauffman, has been employed by Partner Firm kbs since July 2011, and currently acts as Director of Operations, Attention Partners. In 2016 and 2015, her total compensation, including salary, bonus and other benefits, totaled approximately $145 and $125, respectively. Her compensation is commensurate with that of her peers.

16. Commitments, Contingencies and Guarantees

Deferred Acquisition Consideration.  In addition to the consideration paid by the Company in respect of certain of its acquisitions at closing, additional consideration may be payable, or may be potentially payable, based on the achievement of certain threshold levels of earnings. See Note 2 and Note 4.

Options to Purchase.  Noncontrolling shareholders in certain subsidiaries have the right in certain circumstances to require the Company to acquire the remaining ownership interests held by them. The noncontrolling shareholders’ ability to exercise any such option right is subject to the satisfaction of certain conditions, including conditions requiring notice in advance of exercise and specific employment termination conditions. In addition, these rights cannot be exercised prior to specified staggered exercise dates. The exercise of these rights at their earliest contractual date would result in obligations of the Company to fund the related amounts during 2017 to 2023. It is not determinable, at this time, if or when the owners of these rights will exercise all or a portion of these rights.

The amount payable by the Company in the event such rights are exercised is dependent on various valuation formulas and on future events, such as the average earnings of the relevant subsidiary through the date of exercise, the growth rate of the earnings of the relevant subsidiary during that period and, in some cases, the currency exchange rate at the date of payment.

Management estimates, assuming that the subsidiaries owned by the Company at December 31, 2016 perform over the relevant future periods at their trailing twelve-month earnings levels, that these rights, if all exercised, could require the Company to pay an aggregate amount of approximately $12,510 to the owners of such rights in future periods to acquire such ownership interests in the relevant subsidiaries. Of this amount, the Company is entitled, at its option, to fund approximately $124 by the issuance of share capital.

In addition, the Company is obligated under similar put option rights to pay an aggregate amount of approximately $43,085 only upon termination of such owner’s employment with the applicable subsidiary or death.

The amount the Company would be required to pay to the noncontrolling interest holders should the Company acquire the remaining ownership interests is $4,585 less than the initial redemption value recorded in redeemable noncontrolling interests.

Included in redeemable noncontrolling interests at December 31, 2016 was $60,180 of these put options because they are not within the control of the Company. The ultimate amount payable relating to these transactions will vary because it is dependent on the future results of operations of the subject businesses and the timing of when these rights are exercised.

Natural Disasters.  Certain of the Company’s operations are located in regions of the United States which typically are subject to hurricanes. During the years ended December 31, 2016, 2015, and 2014, these operations did not incur any material costs related to damages resulting from hurricanes.

Guarantees.  Generally, the Company has indemnified the purchasers of certain assets in the event that a third party asserts a claim against the purchaser that relates to a liability retained by the Company. These types of indemnification guarantees typically extend for a number of years. Historically, the Company has not made any significant indemnification payments under such agreements and no amount has been accrued in the accompanying consolidated financial statements with respect to these indemnification guarantees. The Company continues to monitor the conditions that are subject to guarantees and indemnifications

94

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

16. Commitments, Contingencies and Guarantees – (continued)

to identify whether it is probable that a loss has occurred and would recognize any such losses under any guarantees or indemnifications in the period when those losses are probable and estimable.

Legal Proceedings.  The Company’s operating entities are involved in legal proceedings of various types. While any litigation contains an element of uncertainty, the Company has no reason to believe that the outcome of such proceedings or claims will have a material adverse effect on the financial condition or results of operations of the Company. In addition, the Company is involved in class action suits as described below.

MDC Partners remains committed to the highest standards of corporate governance and transparency in its reporting practices. In April 2015, the Company announced it was actively cooperating in connection with an SEC investigation of the Company. On January 18, 2017, the Company announced that it reached a final settlement agreement with the Philadelphia Regional Office of the SEC, and that the SEC entered an administrative Order concluding its investigation of the Company.

Under the Order, without admitting or denying liability, the Company agreed that it will not in the future violate Section 17(a)(2) of the Securities Act of 1933 and Sections 13(a), 13(b) and 14(a) of the Securities Exchange Act of 1934 and related rules requiring that periodic filings be accurate; that accurate books and records and a system of internal accounting controls be maintained; and that solicitations of proxies comply with the securities laws. In addition, the Company agreed to comply with all requirements under Regulation G relating to the disclosure and reconciliation of non-GAAP financial measures. Pursuant to the Order, and based upon the Company’s full cooperation with the investigation, the SEC imposed a civil penalty of $1,500 on the Company to resolve all potential claims against the Company relating to these matters. In 2016, the Company recorded a charge of $1,500 related to such penalty. There will be no restatement of any of the Company’s previously-filed financial statements.

On July 31, 2015, North Collier Fire Control and Rescue District Firefighter Pension Plan (“North Collier”) filed a putative class action suit in the Southern District of New York, naming as defendants MDC, CFO David Doft, former CEO Miles Nadal, and former CAO Mike Sabatino. On December 11, 2015, North Collier and co-lead plaintiff Plymouth County Retirement Association filed an amended complaint, adding two additional defendants, Mitchell Gendel and Michael Kirby, a former member of MDC’s Board of Directors. The plaintiff alleges in the amended complaint violations of § 10(b), Rule 10b-5, and § 20 of the Securities Exchange Act of 1934, based on allegedly materially false and misleading statements in the Company’s SEC filings and other public statements regarding executive compensation, goodwill accounting, and the Company’s internal controls. The Company filed a motion to dismiss the amended complaint on February 9, 2016, the lead plaintiffs filed an opposition to that motion on April 8, 2016, and the Company filed a reply brief on May 9, 2016. By order granted on September 30, 2016, the U.S. District Court presiding over the case granted the Company’s motion to dismiss the plaintiffs’ amended complaint in its entirety with prejudice. On November 2, 2016, the lead plaintiffs filed a notice to appeal the U.S. District Court's ruling to the U.S. Court of Appeals for the Second Circuit. On February 21, 2017, the lead plaintiffs voluntarily dismissed their appeal.

On August 7, 2015, Roberto Paniccia issued a Statement of Claim in the Ontario Superior Court of Justice in the City of Brantford, Ontario seeking to certify a class action suit naming the following as defendants: MDC, former CEO Miles S. Nadal, former CAO Michael C. Sabatino, CFO David Doft and BDO U.S.A. LLP. The Plaintiff alleges violations of section 138.1 of the Ontario Securities Act (and equivalent legislation in other Canadian provinces and territories) as well as common law misrepresentation based on allegedly materially false and misleading statements in the Company’s public statements, as well as omitting to disclose material facts with respect to the SEC investigation. The Company intends to continue to vigorously defend this suit. A case management judge has now been appointed but a date for an initial case conference has not yet been set.

One of the Company’s subsidiaries received a subpoena from the U.S. Department of Justice Antitrust Division concerning the Division’s ongoing investigation of production practices in the advertising industry. The Company and its subsidiary are fully cooperating with this confidential investigation.

Commitments.  At December 31, 2016, the Company had $4,360 of undrawn letters of credit. In addition, the Company has commitments to fund investments in an aggregate amount of $738.

Leases.  The Company and its subsidiaries lease certain facilities and equipment. For the years ended December 31, 2016, 2015, and 2014, gross premises rental expense amounted to $56,725, $47,583, and $42,657, respectively, which was reduced by sublease income of $3,027, $1,739, and $1,449, respectively. Where leases contain escalation clauses or other concessions, the impact of such adjustments is recognized on a straight-line basis over the minimum lease period.

95

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

16. Commitments, Contingencies and Guarantees – (continued)

Minimum rental commitments for the rental of office and production premises and equipment under non-cancellable leases net of sublease income, some of which provide for rental adjustments due to increased property taxes and operating costs, for the years ending December 31, 2017 and thereafter, are as follows:

Period	Amount
2017	$	57,294
2018	55,445
2019	51,858
2020	49,068
2021	43,697
2022 and thereafter	134,485
	$	391,847

At December 31, 2016, the total future cash to be received on sublease income is $11,599.

17. New Accounting Pronouncements

In January 2017, the FASB issued Accounting Standards Update (“ASU”) 2017-04, Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment, which eliminates step two from the two-step goodwill impairment test. Under the new guidance, an entity will perform its goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value provided the loss recognized does not exceed the total amount of goodwill allocated to that reporting unit. This guidance is effective for annual or interim goodwill impairment tests performed in fiscal years beginning after December 15, 2019. The Company does not expect the application of this guidance to have a significant impact on its consolidated financial position or results of operations.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows. This new guidance is intended to reduce diversity in practice regarding the classification of certain transactions in the statement of cash flows. This guidance is effective January 1, 2018 and requires a retrospective transition method. Early adoption is permitted. The Company currently classifies all cash outflows for contingent consideration as a financing activity. Upon adoption the Company is required to classify only the original estimated liability as a financing activity and any changes as an operating activity.

In February 2016, the FASB issued ASU 2016-02, which amends the ASC and creates Topic 842, Leases. Topic 842 will require lessees to recognize right-to-use assets and lease liabilities for those leases classified as operating leases under previous U.S. GAAP on the balance sheet. This guidance is effective for annual periods beginning after December 15, 2018 and early adoption is permitted. While not yet in a position to assess the full impact of the application of the new standard, the Company expects that the impact of recording the lease liabilities and the corresponding right-to-use assets will have a significant impact on its total assets and liabilities with a minimal impact on equity.

In January 2016, the FASB issued ASU 2016-01,Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Liabilities, which will require equity investments, except equity method investments, to be measured at fair value and any changes in fair value will be recognized in results of operations. This guidance is effective for annual and interim periods beginning after December 15, 2017 and early application is not permitted. Additionally, this guidance provides for the recognition of the cumulative effect of retrospective application of the new standard in the period of initial application. The Company does not expect the application of this guidance to have a significant impact on its consolidated financial position or results of operations.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which will replace all existing revenue guidance under U.S GAAP. The core principle of ASU 2014-09 is to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration expected to be received in exchange for those goods or services. On July 9, 2015, the FASB approved a one year deferral of the effective date of ASU 2014-09 to all annual and interim periods beginning after December 15, 2017. ASU 2014-09 provides for one of two methods of transition: (i) retrospective application to each prior period presented; or (ii) recognition of the cumulative effect of retrospective application of the new standard as of the beginning of the period of initial application. The Company plans to apply ASU 2014-09 on the effective date of January 1, 2018. Presently, the Company is not yet in a position to conclude on the transition method it will choose. Based on the Company’s initial assessment, the impact of the application of the new standard will likely result in a change in the timing of our revenue recognition for performance incentives received from clients. Performance incentives are currently recognized in revenue when specific quantitative goals are achieved, or when the Company’s performance against qualitative goals is determined by the client. Under

96

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

17. New Accounting Pronouncements – (continued)

the new standard, the Company will be required to estimate the amount of the incentive that will be earned at the inception of the contract and recognize such incentive over the term of the contract. While performance incentives are not material to the Company’s revenue, this will result in an acceleration of revenue recognition for certain contract incentives compared to the current method. Additionally, in certain businesses, the Company records revenue as a principal and includes certain third-party-pass-through and out-of-pocket costs, which are billed to clients in connection with the services provided. In March 2016, the FASB issued further guidance on principal versus agent considerations. The Company is currently evaluating the impact of the principal versus agent guidance on its revenue and cost of services; however, such change is not expected to have a material effect on the Company’s results of operations.

18. Employee Benefit Plans

A subsidiary acquired in 2012 sponsors a defined benefit plan. The benefits under the defined benefit plans are based on each employee’s years of service and compensation. Effective March 1, 2006, the plan was frozen to all new employees. The Company’s policy is to contribute the minimum amounts required by the Employee Retirement Income Security Act of 1974 (ERISA), as amended. The assets of the plans are invested in an investment trust fund and consist of investments in money market funds, bonds and common stock, mutual funds, preferred stock, and partnership interests.

Net periodic pension cost consists of the following components for the years ended December 31:

	Pension Benefits			Pension Benefits
	2016			2015
Service cost	$	—		$	—
Interest cost on benefit obligation	1,855			1,864
Expected return on plan assets	(1,863		)	(2,069		)
Curtailment and settlements	929			—
Amortization of prior service cost	—			—
Amortization of actuarial (gains) losses	137			103
Net periodic benefit cost (benefit)	$	1,058		$	(102	)

ASC 715-30-25 requires an employer to recognize the funded status of its defined pension benefit plan as a net asset or liability in its statement of financial position with an offsetting amount in accumulated other comprehensive income, and to recognize changes in that funded status in the year in which changes occur through comprehensive income.

Other changes in plan assets and benefit obligation recognized in Other Comprehensive Loss consist of the following components for the years ended December 31:

	Pension Benefits			Pension Benefits
	2016			2015
Curtailment/settlement	$	—		$	—
Current year actuarial (gain) loss	3,238			526
Amortization of actuarial gain (loss)	(137		)	(103		)
Current year prior service (credit) cost	—			—
Amortization of prior service credit (cost)	—			—
Amortization of transition asset (obligation)	—			—
Total recognized in other comprehensive (income) loss	$	3,101		$	423
Total recognized in net periodic benefit cost and other comprehensive (income) loss	4,159			$	321

97

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

18. Employee Benefit Plans - (continued)

The following table summarizes the change in benefit obligations and fair values of plan assets for the years ended December 31:

	Pension Benefits			Pension Benefits
	2016			2015
Change in benefit obligation:
Benefit obligation, Beginning balance	$	40,296		$	43,799
Service Cost	—			—
Interest Cost	1,855			1,864
Change in Mortality	—			—
Plan amendments	—			—
Curtailment/settlement	—			—
Actuarial (gains) losses	2,502			(2,774		)
Benefits paid	(3,931		)	(2,593		)
Benefit obligation, Ending balance	40,722			40,296
Change in plan assets:
Fair value of plan assets, Beginning balance	25,190			28,360
Actual return on plan assets	198			(1,232		)
Employer contributions	3,025			655
Benefits paid	(3,931		)	(2,593		)
Fair value of plan assets, Ending balance	24,482			25,190
Unfunded status	$	16,240		$	15,106

Amounts recognized in the balance sheet at December 31 consist of the following:

	Pension Benefits		Pension Benefits
	2016		2015
Non-current liability	$	16,240	$	15,106
Net amount recognized	$	16,240	$	15,106

Amounts recognized, net of tax, in Accumulated Other Comprehensive Loss consists of the following components for the years ended December 31:

	Pension Benefits		Pension Benefits
	2016		2015
Accumulated net actuarial losses	$	12,320	$	9,219
Accumulated prior service cost	—		—
Accumulated transition obligation	—		—
Amount recognized, net of tax	$	12,320	$	9,219

The preceding table presents two measures of benefit obligations for the pension plan. Accumulated benefit obligation generally measures the value of benefits earned to date. Projected benefit obligation also includes the effect of assumed future compensation increases for plans in which benefits for prior service are affected by compensation changes. This pension plan has asset values less than these measures. Plan funding amounts are calculated pursuant to ERISA and Internal Revenue Code rules.

98

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

18. Employee Benefit Plans - (continued)

The following weighted average assumptions were used to determine benefit obligations as of December 31:

	Pension Benefits		Pension Benefits
	2016		2015
Discount rate	4.32	%	4.69	%
Rate of compensation increase	N/A		N/A

The discount rate assumptions at December 31, 2016 and 2015 were determined independently. A yield curve was produced for a universe containing the majority of U.S.-issued AA-graded corporate bonds, all of which were non-callable (or callable with make-whole provisions). The discount rate was developed as the level equivalent rate that would produce the same present value as that using spot rates aligned with the projected benefit payments.

The following weighted average assumptions were used to determine net periodic costs at December 31:

	Pension Benefits		Pension Benefits
	2016		2015
Discount rate	4.69	%	4.38	%
Expected return on plan assets	7.40	%	7.40	%
Rate of compensation increase	N/A		N/A

The expected return on plan assets is a long-term assumption established by considering historical and anticipated returns of the asset classes invested in by the pension plan and the allocation strategy currently in place among those classes.

Fair Value of Plan Assets

The Defined Benefit plan assets fall into any of three fair value classifications as defined in the FASB ASC Topic 820, Fair Value Measurements. There are no Level 3 assets held by the plan. The fair value of the plan assets as of December 31 is as follows:

	December 31, 2016		Level 1		Level 2		Level 3
Asset Category:
Money Market Fund – Short Term Investments	$	1,687	$	1,687	$	—	$	—
Common Stock	—		—		—		—
Corporate Bonds	—		—		—		—
Mutual Funds	22,795		22,795		—		—
Foreign Stock	—		—		—		—
Total	$	24,482	$	24,482	$	—	$	—

	December 31, 2015		Level 1		Level 2		Level 3
Asset Category:
Money Market Fund – Short Term Investments	$	1,580	$	145	$	1,435	$	—
Common Stock	9,479		9,479		—		—
Corporate Bonds	3,834		—		3,834		—
Mutual Funds	10,006		10,006		—		—
Foreign Stock	291		291		—		—
Total	$	25,190	$	19,921	$	5,269	$	—

99

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

18. Employee Benefit Plans - (continued)

The pension plans weighted-average asset allocation for the years ended December 31, 2016 and 2015 are as follows:

	Target Allocation		Actual Allocation		Actual Allocation
	2016		2016		2015
Asset Category:
Equity Securities	68.0	%	65.5	%	68.0	%
Debt Securities	31.0	%	27.6	%	25.7	%
Cash/Cash Equivalents and Short Term Investments	1.0	%	6.9	%	6.3	%
	100	%	100	%	100	%

The investment policy for the plans is formulated by the Company’s Pension Plan Committee (the “Committee”). The Committee is responsible for adopting and maintaining the investment policy, managing the investment of plan assets and ensuring that the plans’ investment program is in compliance with all provisions of ERISA, as well as the appointment of any investment manager who is responsible for implementing the plans’ investment process.

The goals of the pension plan investment program are to fully fund the obligation to pay retirement benefits in accordance with the plan documents and to provide returns that, along with appropriate funding from the Company, maintain an asset/liability ratio that is in compliance with all applicable laws and regulations and assures timely payment of retirement benefits.

The Company’s overall investment strategy is to achieve a mix of approximately 50 percent of investments for long-term growth and 50 percent for near-term benefit payments with a wide diversification of asset types and fund strategies.

Equity securities primarily include investments in large-cap and mid-cap companies primarily located in the United States, as well as a smaller percentage invested in large-cap and mid-cap companies located outside of the United States. Fixed income securities are diversified across different asset types with bonds issued in the United States as well as outside the United States.

The target allocation of plan assets is 50 percent equity securities and 50 percent corporate bonds and U.S. Treasury securities.

The Plan invests in various investment securities. The investments are primarily invested in corporate equity and bond securities. Investment securities are exposed to various risks such as interest rate, market, and credit risks. Due to the level of risk associated with certain investment securities, it is at least reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect the amounts reported in the preceding tables.

The above tables present information about the pension plan assets measured at fair value at December 31, 2016 and the valuation techniques used by the Company to determine those fair values.

In general, fair values determined by Level 1 inputs use quoted prices in active markets for identical assets that the Plan has the ability to access.

Fair values determined by Level 2 inputs use other inputs that are observable, either directly or indirectly. These Level 2 inputs include quoted prices for similar assets in active markets, and other inputs such as interest rates and yield curves that are observable at commonly quoted intervals.

Level 3 inputs are unobservable inputs, including inputs that are available in situations where there is little, if any, market activity for the related asset.

In instances where inputs used to measure fair value fall into different levels in the above fair value hierarchy, fair value measurements in their entirety are categorized based on the lowest level input that is significant to the valuation. The Company’s assessment of the significance of particular inputs to these fair value measurements requires judgment and considers factors specific to each plan asset.

The net of investment manager fee asset return objective is to achieve a return earned by passively managed market index funds, weighted in the proportions identified in the strategic asset allocation matrix. Each investment manager is expected to perform in the top one-third of funds having similar objectives over a full market cycle.

The investment policy is reviewed by the Committee at least annually and confirmed or amended as needed. Under ASC 715-30-25, the transition obligation, prior service costs, and actuarial (gains)/losses are recognized in Accumulated Other Comprehensive Income each December 31 or any interim measurement date, while amortization of these amounts through net

100

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

18. Employee Benefit Plans - (continued)

periodic benefit cost will occur in accordance with ASC 715-30 and ASC 715-60. The estimated amounts that will be amortized in 2017 are as follows:

	Pension Benefits
Estimated Amortization:	2017
Prior service cost (credit) amortization	$	—
Net loss amortization	222
Total	$	222

The following estimated benefit payments, which reflect expected future service, as appropriate, are expected to be paid in the years ending December 31:

Period	Amount
2017	$	1,613
2018	$	1,762
2019	$	1,858
2020	$	2,028
2021	$	2,020
2022 and thereafter	$	11,269

The pension plan contributions are deposited into a trust, and the pension plan benefit payments are made from trust assets.

19. Changes in Accumulated Other Comprehensive Income (Loss)

The changes in accumulated other comprehensive income (loss) for the year ended December 31 were:

	Defined Benefit Pension			Foreign Currency Translation			Total
Balance December 31, 2014	$	(8,796	)	$	1,044		$	(7,752	)
Other comprehensive income before reclassifications	—			14,432			14,432
Amounts reclassified from accumulated other comprehensive income (loss)	(423		)	—			(423		)
Other comprehensive income (loss)	$	(423	)	$	14,432		$	14,009
Balance December 31, 2015	$	(9,219	)	$	15,476		$	6,257
Other comprehensive income before reclassifications	—			(4,980		)	(4,980		)
Amounts reclassified from accumulated other comprehensive income (loss)	(3,101		)	—			(3,101		)
Other comprehensive income (loss)	(3,101		)	(4,980		)	(8,081		)
Balance December 31, 2016	$	(12,320	)	$	10,496		$	(1,824	)

101

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

Reclassifications for the years ended December 31 were as follows:

	2016		2015
Amortization of defined pension plan:
Prior service cost	$	—	$	—
Actuarial losses	137		103
Net periodic benefit cost	137		103
Income tax expense	55		41
Net of tax	$	82	$	62

102

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

20. Quarterly Results of Operations (Unaudited)

The following table sets forth a summary of the Company’s consolidated unaudited quarterly results of operations for the years ended December 31, in thousands of dollars, except per share amounts.

	Quarters
	First			Second		Third			Fourth
Revenue:
2016	$	309,042		$	337,047	$	349,254		$	390,442
2015	$	302,222		$	336,606	$	328,415		$	359,013
Cost of services sold:
2016	$	211,446		$	228,835	$	235,659		$	260,193
2015	$	210,419		$	225,042	$	212,925		$	231,330
Income (loss) from continuing operations:
2016	$	(22,772	)	$	2,089	$	(31,081	)	$	11,143
2015	$	(22,941	)	$	31,548	$	(4,690	)	$	(24,036	)
Net income (loss) attributable to MDC Partners Inc.:
2016	$	(23,631	)	$	835	$	(32,140	)	$	9,097
2015	$	(31,615	)	$	30,036	$	(8,128	)	$	(25,747	)
Income (loss) per common share:
Basic
Continuing operations:
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17
2015	$	(0.51	)	$	0.58	$	(0.14	)	$	(0.52	)
Net income (loss):
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17
2015	$	(0.64	)	$	0.60	$	(0.16	)	$	(0.52	)
Diluted
Continuing operations:
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17		(1)
2015	$	(0.51	)	$	0.57	$	(0.14	)	$	(0.52	)
Net income (loss):
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17		(1)
2015	$	(0.64	)	$	0.60	$	(0.16	)	$	(0.52	)

(1) The diluted income per share calculation for the fourth quarter of 2016 excludes the Company's option to settle the deferred acquisition consideration in shares related to F&B. If such shares were included, the diluted income per common share would be $0.14.

The above revenue, cost of services sold, and income (loss) from continuing operations have primarily been affected by acquisitions, divestitures and discontinued operations.

Historically, with some exceptions, the Company’s fourth quarter generates the highest quarterly revenues in a year. The fourth quarter has historically been the period in the year in which the highest volumes of media placements and retail related consumer marketing occur.

Income (loss) from continuing operations and net loss have been affected as follows:

• The fourth quarter of 2016 and 2015 included a foreign exchange loss of $10,081 and $9,531, respectively.

103

MDC PARTNERS INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Thousands of United States Dollars, Unless Otherwise Stated Except per Share Amounts)

20. Quarterly Results of Operations (Unaudited) - (continued)

• The fourth quarter of 2016 and 2015 included stock-based compensation charges of $5,560 and $4,771, respectively.

• The fourth quarter of 2016 and 2015 included deferred acquisition adjustments of $(9,211) and $41,913, respectively.

• The third and fourth quarter of 2016 included goodwill impairment charges of $29,631 and $18,893, respectively.

21. Other Events

On January 18, 2017, the Company announced that it reached a final settlement agreement with the Philadelphia Regional Office of the SEC in connection with its prior investigation of the Company, and that the SEC entered an administrative Order concluding its investigation of the Company. Pursuant to the Order, and based upon the Company’s full cooperation with the investigation, the SEC imposed a civil penalty of $1,500 on the Company to resolve all potential claims against the Company relating to these matters. There will be no restatement of any of the Company’s previously-filed financial statements.

In connection with the investigation, Miles Nadal resigned from his position as CEO and as a Director of the Company’s Board of Directors, effective July 20, 2015, and agreed to repay to the Company specified expenses paid by the Company on his behalf and prior cash bonus awards. Specifically, as of December 31, 2015, Mr. Nadal repaid to the Company an aggregate amount equal to $11,285 in respect of perquisites and improper payments identified by the Special Committee. The Company recorded this amount as a reduction of office and general expenses in 2015. In addition, Mr. Nadal agreed to repay to the Company $10,582 in connection with amounts required to be repaid pursuant to cash bonus awards previously paid to Mr. Nadal, with such repayments to be made in five installments, with the last to be paid on December 31, 2017. Mr. Nadal repaid to the Company the first installment of $1,000 in September 2015, the second installment of $1,500 in December 2015, and an additional payment of $2,000 in December 2016. An additional $6,082 is due in 2017. In 2015, the Company recorded a charge of approximately  $5,338 for the balance of prior cash bonus award amounts that will not be recovered.

For the twelve months ended December 31, 2016, the Company has incurred $4,065 of professional expenses and $1,500 of civil penalty payments relating to the prior SEC investigation, which were offset by $5,919 of proceeds from the Company’s D&O insurance policy.   

22. Subsequent Events

On February 14, 2017, the Company entered into a securities purchase agreement with Broad Street Principal Investments, L.L.C., an affiliate of The Goldman Sachs Group Inc. (the “Purchaser”), pursuant to which the Company has agreed to issue and sell to the Purchaser, and the Purchaser has agreed to purchase, 95,000 newly authorized Series 4 convertible preference shares for an aggregate purchase price in cash of $95.0 million, subject to the terms and conditions set forth in the securities purchase agreement. The closing of the transaction is expected to occur in the first quarter of 2017, subject to the conditions set forth in the securities purchase agreement.

Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosures

Not Applicable.

Item 9A. Controls and Procedures

(a) Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures designed to ensure that information required to be included in our SEC reports is recorded, processed, summarized, and reported within the applicable time periods specified by the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer (CEO) and our Chief Financial Officer (CFO), who is our principal financial officer, as appropriate, to allow timely decisions regarding required disclosures. There are inherent limitations to the effectiveness of any system of disclosure controls and procedures, including the possibility of human error and the circumvention or overriding of the controls and procedures. Accordingly, our disclosure controls and procedures provide reasonable assurance, but not absolute assurance, of achieving their objectives.

We conducted an evaluation, under the supervision and with the participation of our management, including our CEO, our CFO and our management Disclosure Committee, of the effectiveness of our disclosure controls and procedures as of the end of the period covered by this report pursuant to Rule 13a-15(b) of the Exchange Act. Based on that evaluation, the CEO and CFO concluded that the Company’s disclosure controls and procedures were effective at such time.

104

(b) Management’s Report on Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rules 13a-15(f) under the Exchange Act). Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Management (with the participation of our CEO and CFO) conducted an evaluation of the effectiveness of our internal control over financial reporting as of December 31, 2016 based on the criteria set forth in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

Based on this evaluation, our CEO and CFO concluded that our internal control over financial reporting was effective as of December 31, 2016.

Our management, including our CEO and CFO, believes there have been no changes in our internal control over financial reporting during the fiscal quarter ended December 31, 2016, that materially affected, or were reasonably likely to materially affect, our internal control over financial reporting.

The effectiveness of our internal control over financial reporting as of December 31, 2016, has been independently audited by BDO USA LLP, an independent registered public accounting firm, as stated in their report which is included herein.

(c) Evaluation of New Reportable Segments; Changes in Internal Control Over Financial Reporting

As described in Note 14 to the unaudited condensed consolidated financial statements contained in this Amendment No. 1 on Form 10-K/A, we have recast our single reportable segment and identified four (4) new reportable segments for our Partner Firms. Where applicable, prior period information presented in this Amendment No. 1 on Form 10-K/A has been recast to conform to these new reportable segments. The recasting of prior period segment information in this Amendment No. 1 on Form 10-K/A does not affect our consolidated financial condition or results of operations for the three years in the period ended December 31, 2016, our balance sheets as of December 31, 2016 and December 31, 2015, our cash flows for the three years in the period ended December 31, 2016, or goodwill for any period presented.

Our management, including our CEO and CFO, believes there have been no changes in our internal control over financial reporting during the fiscal quarter ended December 31, 2016, that materially affected, or were reasonably likely to materially affect, our internal control over financial reporting. The Company continues to evaluate the impact of the determination to recast its reportable segments in consultation with the SEC. The outcome of this evaluation could affect our determination as to whether changes in internal control over financial reporting that were made in connection with recasting our reportable segments constituted material changes. 

105

(d) Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders

MDC Partners Inc.

New York, New York

Toronto, Canada

We have audited MDC Partners Inc. internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (the COSO criteria). MDC Partners Inc.’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying “Item 9A - Management’s Report on Internal Control Over Financial Reporting.” Our responsibility is to express an opinion on the company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, MDC Partners Inc. maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board, the consolidated balance sheets of MDC Partners Inc. as of December 31, 2016 and 2015, and the related consolidated statements of operations, comprehensive loss, shareholders’ deficit, and cash flows for each of the three years in the period ended December 31, 2016 and our report dated March 1, 2017, except for Notes 2 and 14 which is August 31, 2017, expressed an unqualified opinion thereon and included an explanatory paragraph regarding the Company's restated (i) segment disclosures, (ii) presentation of book overdrafts on the statements of cash flows, and (iii) adjusted deferred tax liabilities.

/s/ BDO USA LLP

New York, New York

August 31, 2017

106

Item 9B. Other Information

On February 28, 2017, the Company entered into an agreement to issue 568,182 Class A subordinate voting shares to the founders of a subsidiary in a transaction exempt from registration pursuant to Section 4(a)(2) of the Securities Act of 1933, as amended.  These shares will be issued in satisfaction of the Company’s obligation to pay $5 million of deferred purchase payments relating to a prior acquisition, and therefore will not result in any proceeds to the Company. No commissions were or will be paid to any person in connection with the issuance of these Class A shares.

107

PART III

Item 10. Directors, Executive Officers and Corporate Governance

Reference is made to the sections captioned “Nomination of Directors,” “Information Concerning Nominees for Election as Directors,” “Information Concerning Executive Officers,” “Audit Committee,” “Ethical Conduct” and “Compliance with Section 16(a) of the Exchange Act” in our Proxy Statement for the 2017 Annual General Meeting of Stockholders, which will be filed with the Commission within 120 days of the close of our fiscal year ended December 31, 2016, which sections are incorporated herein by reference.

Executive Officers of MDC Partners

The executive officers of MDC Partners as of March 1, 2017 are:

Name	Age	Office
Scott L. Kauffman(1)	61	Chairman of the Board and Chief Executive Officer
David B. Doft	45	Chief Financial Officer
Mitchell S. Gendel	51	Executive Vice President, General Counsel and Corporate Secretary
Bob Kantor	59	Executive Vice President, Global Chief Marketing Officer
David C. Ross	36	Executive Vice President, Strategy and Corporate Development
Alexandra Delanghe Ewing	37	Chief Communications Officer

____________

(1) Also a member of MDC’s Board of Directors.

There is no family relationship among any of the executive officers or directors.

Mr. Kauffman joined MDC Partners in April 2006 as a director on the board of directors and, effective July 20, 2015, assumed the role of Chairman and Chief Executive Officer of MDC Partners.  From April 2013 until May 2014, Mr. Kauffman served as the President and Chief Executive Officer, and a member of the Board of Directors, of New Engineering University. From April 2011 until January 2013, Mr. Kauffman was a Board member and then Chairman of LookSmart, Ltd, a publicly-traded, syndicated pay-per-click search network. From January 2009 to August 2010, Mr. Kauffman was President and Chief Executive Officer, and a member of the board, of GeekNet, Inc., a publicly-traded open source software application developer and e-commerce website operator.

Mr. Doft joined MDC Partners in August 2007 as Chief Financial Officer. Prior to joining MDC Partners, he oversaw media and Internet investments at Cobalt Capital Management Inc. from July 2005 to July 2007. Prior thereto, he worked at Level Global Investors from October 2003 to March 2005 investing in media and Internet companies. Before that, Mr. Doft was a sell side analyst for ten years predominately researching the advertising and marketing services sector for CIBC World Markets where he served as Executive Director and ABN AMRO/ING Barings Furman Selz where he was a Managing Director.

Mr. Gendel joined MDC Partners in November 2004, as General Counsel and Corporate Secretary. Prior to joining MDC Partners, he served as Vice President and Assistant General Counsel at The Interpublic Group of Companies, Inc. from December 1999 until September 2004.

Mr. Kantor joined MDC Partners in May 2009, and currently serves as Global Chief Marketing Officer. Prior to joining MDC Partners, he served as CEO of Publicis NY and President of Lowe & Partners NA, and also founded and built Rotter Kantor, an integrated communications company, as well as Hanger Network, the country’s largest green-marketing platform.

Mr. Rossjoined MDC Partners in March 2010 and currently serves as Executive Vice President, Strategy and Corporate Development.  Prior to joining MDC Partners, Mr. Ross was an attorney at Skadden Arps LLP where he represented global clients in a wide range of capital markets offerings, M&A transactions, and general corporate matters.

Ms. Ewing joined MDC Partners in January 2012, and currently serves as Chief Communications Officer. Prior to joining MDC Partners, Ms. Ewing served as U.S. Director of Communications for DDB, managing national communications efforts on behalf of the network and its agencies.

Additional information about our directors and executive officers appears under the captions “Election of Directors” and “Executive Compensation” in the Company’s Proxy Statement for the 2016 Annual General Meeting of Stockholders.

108

Code of Conduct

The Company has adopted a Code of Conduct, which applies to all directors, officers (including the Company’s Chief Executive Officer and Chief Financial Officer) and employees of the Company and its subsidiaries. The Company’s policy is to not permit any waiver of the Code of Conduct for any director or executive officer, except in extremely limited circumstances. Any waiver of this Code of Conduct for directors or officers of the Company must be approved by the Company’s Board of Directors. Amendments to and waivers of the Code of Conduct will be publicly disclosed as required by applicable laws, rules and regulations. The Code of Conduct is available free of charge on the Company’s website at http://www.mdc-partners.com, or by writing to MDC Partners Inc., 745 Fifth Avenue, 19th Floor, New York, New York, 10151, Attention: Investor Relations.

Item 11. Executive Compensation

Reference is made to the sections captioned “Compensation of Directors” and “Executive Compensation” in the Company’s next Proxy Statement for the 2017 Annual General Meeting of Stockholders, which are incorporated herein by reference.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Reference is made to Item 5 of this Amendment No. 1 on Form 10-K/A and to the sections captioned “Section 16 (a) Beneficial Ownership Reporting Compliance” in the Company’s next Proxy Statement for the 2017 Annual General Meeting of Stockholders, which are incorporated herein by reference.

Item 13. Certain Relationships and Related Transactions and Director Independence

Reference is made to the section captioned “Transactions with Related Parties” in this Amendment No. 1 on Form 10-K/A, and to “Certain Relationships and Related Transactions” in the Company’s Proxy Statement for the 2017 Annual General Meeting of Stockholders, which is incorporated herein by reference.

Item 14. Principal Accountant Fees and Services

Reference is made to the section captioned “Appointment of Auditors” in the Company’s Proxy Statement for the 2016 Annual General Meeting of Stockholders, which is incorporated herein by reference.

109

PART IV

Item 15. Exhibits and Financial Statement Schedules.

Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders

MDC Partners Inc. New York, New York

The audits referred to in our report dated March 1, 2017, except for Notes 2 and 14 which is August 31, 2017, relating to the consolidated financial statements of MDC Partners Inc., which is contained in Item 8 of this Form 10-K/A also included the audit of the financial statement Schedule II (restated) for years ended 2016, 2015 and 2014. This financial statement schedule is the responsibility of the Company’s management. Our responsibility is to express an opinion on the financial statement schedule based on our audits.

In our opinion such financial statement Schedule II, when considered in relation to the basic consolidated financial statements taken as a whole, present fairly, in all material respects, the information set forth therein.

/s/ BDO USA LLP

New York, New York

March 1, 2017, except as it relates to the tax reserves described in Note 2 to the audited consolidated financial statements, which is August 31, 2017

110

(a) Financial Statements and Schedules

The Financial Statements and Schedules listed in the accompanying Index to Consolidated Financial Statements in Item 8 are filed as part of this report. Schedules not included in the index have been omitted because they are not applicable.

Schedule II — 1 of 2

MDC PARTNERS INC. & SUBSIDIARIES

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

For the Three Years Ended December 31,

(Dollars in Thousands)

Column A	Column B		Column C		Column D			Column E			Column F
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Removal of Uncollectible Receivables			Translation Adjustments Increase (Decrease)			Balance at the End of Period
Valuation accounts deducted from assets to which they apply –  allowance for doubtful accounts:
December 31, 2016	$	1,306	$	1,053	$	(830	)	$	(6	)	$	1,523
December 31, 2015	$	1,409	$	750	$	(799	)	$	(54	)	$	1,306
December 31, 2014	$	2,011	$	556	$	(1,127	)	$	(31	)	$	1,409

Schedule II — 2 of 2

MDC PARTNERS INC. & SUBSIDIARIES

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

For the Three Years Ended December 31,

(Dollars in Thousands)

Column A	Column B		Column C			Column D			Column E			Column F
Description	Balance at Beginning of Period		Charged to Costs and Expenses			Other(1)			Translation Adjustments Increase (Decrease)			Balance at the End of Period
Valuation accounts deducted from assets to which they apply – valuation allowance for deferred income taxes:
December 31, 2016	$	247,967	$	6,605		$	(6,032	)	$	327		$	248,866
December 31, 2015	$	175,218	$	3,565		$	73,390		$	(4,206	)	$	247,967
December 31, 2014	$	161,875	$	(643	)	$	15,331		$	(1,345	)	$	175,218

____________

(1) Adjustment to reconcile actual net operating loss carry forwards to prior year tax accrued, utilization of net operating loss carry forwards, which were fully reserved, adjustment for net operating loss relating to sale of business and pension plan adjustment.

(b) Exhibits

The exhibits listed on the accompanying Exhibits Index are filed as a part of this report.

111

Item 16. Amendment No. 1 on Form 10-K/A Summary

None.

112

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

By:

MDC PARTNERS INC.

Date:	August 31, 2017	/s/ Scott L. Kauffman
		Name: Scott L. Kauffman Title: Chairman and Chief Executive Officer

113

EXHIBIT INDEX

Exhibit No.	Description
3.1	Articles of Amalgamation, dated January 1, 2004 (incorporated by reference to Exhibit 3.1 to the Company’s Form 10-Q filed on May 10, 2004);
3.1.1	Articles of Continuance, dated June 28, 2004 (incorporated by reference to Exhibit 3.3 to the Company’s Form 10-Q filed on August 4, 2004);
3.1.2	Articles of Amalgamation, dated July 1, 2010 (incorporated by reference to Exhibit 3.1 to the Company’s Form 10-Q filed on July 30, 2010);
3.1.3	Articles of Amalgamation, dated May 1, 2011 (incorporated by reference to Exhibit 3.1 to the Company’s Form 10-Q filed on May 2, 2011);
3.1.4	Articles of Amalgamation, dated January 1, 2013 (incorporated by reference to Exhibit 3.1.4 to the Company’s Form 10-K filed on March 10, 2014);
3.1.5	Articles of Amalgamation, dated April 1, 2013 (incorporated by reference to Exhibit 3.1.5 to the Company’s Form 10-K filed on March 10, 2014);
3.1.6	Articles of Amalgamation, dated July 1, 2013 (incorporated by reference to Exhibit 3.1.6 to the Company’s Form 10-K filed on March 10, 2014);
3.2	General By-law No. 1, as amended on April 29, 2005 (incorporated by reference to Exhibit 3.2 to the Company’s Form 10-K filed on March 16, 2007);
4.1	Indenture, dated as of March 23, 2016, among the Company, the Guarantors and The Bank of New York Mellon, as trustee (incorporated by reference to Exhibit 4.1 to the Company’s Form 8-K filed on March 23, 2016);
4.1.1	6.50% Senior Notes due 2024 (incorporated by reference to Exhibit 4.2 to the Company’s Form 8-K filed on March 23, 2016);
10.1	Second Amended and Restated Credit Agreement, dated as of May 3, 2016, among the Company, Maxxcom Inc., a Delaware corporation, each of their subsidiaries party thereto, Wells Fargo Capital Finance, LLC, as agent, and the lenders from time to time party thereto (incorporated by reference to Exhibit 10.1 to the Company’s Form 8-K filed on May 3, 2016);
10.2	Employment Agreement between the Company and Scott Kauffman, dated as of August 6, 2015 (incorporated by reference to Exhibit 10.2 to the Company’s Form 10-K filed on February 26, 2016);
10.3	Separation Agreement, by and among the Company, Nadal Management Limited, Nadal Financial Corporation and Miles Nadal, dated as of July 20, 2015 (incorporated by reference to Exhibit 10.1 to the Company’s Form 8-K filed on July 20, 2015);
10.4	Employment Agreement between the Company and David Doft, dated as of July 19, 2007 (effective August 10, 2007) (incorporated by reference to Exhibit 10.7 to the Company’s Form 10-Q filed on August 7, 2007);
10.4.1	Amendment No. 1 dated March 7, 2011, to the Amended and Restated Employment Agreement made as of July 19, 2007, by and between the Company and David Doft (incorporated by reference to Exhibit 10.2 to the Company’s Form 10-Q filed on May 2, 2011);
10.5	Amended and Restated Employment Agreement between the Company and Mitchell Gendel, dated as of July 6, 2007 (incorporated by reference to Exhibit 10.5 to the Company’s Form 10-Q filed on August 7, 2007);
10.5.1	Amendment No. 1 dated March 7, 2011, to the Amended and Restated Employment Agreement made as of July 6, 2007, by and between the Company and Mitchell Gendel (incorporated by reference to Exhibit 10.3 to the Company’s Form 10-Q filed on May 2, 2011);
10.6	Amended and Restated Employment Agreement between the Company and Robert Kantor, dated as of May 5, 2014 (incorporated by reference to Exhibit 10.2 to the Company’s 10-Q filed on May 4, 2016);
10.7	Second Amended and Restated Employment Agreement between the Company and David Ross, dated as of February 27, 2017 (incorporated by reference to Exhibit 10.7 to the Company's 10-K filed on March 1, 2017);
10.8	Amended and Restated Stock Appreciation Rights Plan, as adopted by the shareholders of the Company at the 2009 Annual and Special Meeting of Shareholders on June 2, 2009 (incorporated by reference to Exhibit 10.2 to the Company’s Form 8-K filed on June 5, 2009);
10.8.1	Form of Stock Appreciation Rights Agreement (incorporated by reference to Exhibit 10.2 to the Company’s 10-Q filed on May 5, 2006);
10.9	Amended 2005 Stock Incentive Plan of the Company, as approved and adopted by the shareholders of the Company at the 2009 Annual and Special Meeting of Shareholders on June 2, 2009 (incorporated by reference to Exhibit 10.1 to the Company’s 8-K filed on June 5, 2009);
10.10	2008 Key Partner Incentive Plan, as approved and adopted by the shareholders of the Company at the 2008 Annual and Special Meeting of Shareholders on May 30, 2008 (incorporated by reference to Exhibit 10.1 to the Company’s Form 10-Q filed on July 31, 2008);
10.11	2011 Stock Incentive Plan of the Company, as approved and adopted by the shareholders of the Company on June 1, 2011 (incorporated by reference to Exhibit 10.1 to the Company’s Form 8-K filed on June 1, 2011);

114

10.11.1	Form of Restricted Stock Grant Agreement (2011 Plan) (incorporated by reference to Exhibit 10.2 to the Company’s Form 8-K filed on June 1, 2011);
10.11.2	Form of Restricted Stock Unit (RSU) Grant Agreement (2011 Plan) (incorporated by reference to Exhibit 10.3 to the Company's Form 8-K filed on June 1, 2011);
10.11.3	Form of Restricted Stock Grant Agreement (2012) (incorporated by reference to Exhibit 10.13.3 of the Company’s Form 10-K filed on March 15, 2012);
10.11.4	Form of Restricted Stock Unit (RSU) Grant Agreement (2012) (incorporated by reference to Exhibit 10.13.4 of the Company’s Form 10-K filed on March 15, 2012);
10.11.5	Form of 2014 Financial-Performance Based Restricted Stock Grant Agreement (incorporated by reference to Exhibit 10.10.5 to the Company’s Form 10-K filed on March 10, 2014);
10.11.6	Form of Financial-Performance Based Restricted Stock Grant Agreement (2016) under the 2011 Stock Incentive Plan (incorporated by reference to Exhibit 10.15 to the Company’s Form 10-K filed on February 26, 2016);
10.12	Form of Incentive/Retention Payment letter agreement (incorporated by reference to Exhibit 10.1 to the Company’s Form 8-K filed on August 1, 2011);
10.13	MDC Partners Inc. 2014 Long Term Cash Incentive Compensation Plan, as adopted March 6, 2014, including forms of 2014 Award Agreement (incorporated by reference to Exhibit 10.12 to the Company’s Form 10-K filed on March 10, 2014);
10.14	2016 Stock Incentive Plan, as adopted by the shareholders of the Company at the 2016 Annual and Special Meeting of Shareholders on June 1, 2016 (incorporated by reference to Exhibit 10.14 to the Company's 10-K filed on March 1, 2017);
10.14.1	Form of Financial-Performance Based Restricted Stock Grant Agreement (2017) under the 2016 Stock Incentive Plan (incorporated by reference to Exhibit 10.14.1 to the Company's 10-K filed on March 1, 2017);
12	Statement of computation of ratio of earnings to fixed charges**;
14	Code of Conduct of MDC Partners Inc. (as amended, November 2015) (as amended, February 2016) (incorporated by reference to Exhibit 14 to the Company’s Form 10-K filed on February 26, 2016);
14.1	MDC Partners’ Corporate Governance Guidelines (as amended, February 2016) (incorporated by reference to Exhibit 14.1 to the Company’s Form 10-K filed on February 26, 2016);
21	Subsidiaries of Registrant**;
23	Consent of Independent Registered Public Accounting Firm BDO USA LLP*;
31.1	Certification by Chief Executive Officer pursuant to Rules 13a 14(a) and 15d 14(a) under the Securities Exchange Act of 1934 and Section 302 of the Sarbanes-Oxley Act of 2002*;
31.2	Certification by Chief Financial Officer pursuant to Rules 13a 14(a) and 15d 14(a) under the Securities Exchange Act of 1934 and Section 302 of the Sarbanes-Oxley Act of 2002*;
32.1	Certification by Chief Executive Officer pursuant to 18 USC. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*;
32.2	Certification by Chief Financial Officer pursuant to 18 USC. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*.

___________

*    Filed electronically herewith.

**    Previously filed.

115

EX-12

Exhibit 12

Statement of Computation of Ratio of Earnings to Fixed Charges

	Twelve Months Ended December 31,
	2016			2015			2014			2013			2012
Earnings:
Loss from continuing operations attributable to MDC Partners Inc.	$	(45,839	)	$	(29,173	)	$	(151	)	$	(139,663	)	$	(80,311	)
Additions:
Income taxes (recovery)	(9,404		)	3,761			9,776			(4,367		)	9,553
Noncontrolling interest in earnings of consolidated subsidiaries	5,218			9,054			6,890			6,461			6,863
Fixed charges, as shown below	117,055			73,184			69,001			113,188			55,453
Distributions received from equity-method investees	123			652			726			3,096			1,288
	112,992			86,651			86,393			118,378			73,157
Subtractions:
Equity in income (loss) of nonconsolidated affiliates	(309		)	1,058			1,406			281			633
Noncontrolling interest in earnings of consolidated subsidiaries that have not incurred fixed charges	—			—			—			—			—
	(309		)	1,058			1,406			281			633
Earnings (loss) as adjusted	67,462			56,420			84,836			(21,566		)	(7,787		)
Fixed charges:
Interest on indebtedness, expensed or capitalized	90,021			55,633			53,018			92,936			42,003
Amortization of debt discount and expense and premium on indebtedness, expensed or capitalized	9,135			2,270			2,247			7,762			2,249
Interest within rent expense	17,899			15,281			13,736			12,490			11,201
Total fixed charges	$	117,055		$	73,184		$	69,001		$	113,188		$	55,453
Ratio of earnings to fixed charges	N/A			N/A			1.23			N/A			N/A
Dollar amount deficiency	$	49,593		$	16,764		N/A			$	134,754		$	63,240

EX-21

Exhibit 21

MDC PARTNERS INC.
 
SUBSIDIARIES OF THE REGISTRANT

Name	Jurisdiction of Incorporation/Formation
1208075 Ontario Limited	Ontario
2329640 Ontario Inc.	Ontario
2340432 Ontario Inc.	Ontario
6 Degrees Integrated Communications Corp.	Ontario
72andSunny NL B.V.	Netherlands
72andSunny Partners LLC	Delaware
72andSunny Partners LLC	New York
72andSunny Pte. Ltd.	Republic of Singapore
72andSunny Pty Ltd	New South Wales
7thfl LLC	Delaware
939GP Inc.	Ontario
Accumark Partners Inc.	Ontario
ACE Content LLC	Delaware
Albion Brand Communication Limited	United Kingdom
Allegory LLC	Delaware
Allison & Partners Holdings (Thailand) Limited	Bangkok
Allison & Partners LLC	Delaware
Allison & Partners Thailand Limited	unknown
Allison and Partners K.K.	Tokyo
Allison Kommunikation GmbH	Berlin
Allison Partners Limited	Wanchai
Allison PR (Beijing) Limited	Beijing
Allison+Partners Singapore Pte Ltd	Republic of Singapore
Allison+Partners UK Limited	England
Alveo LLC	Delaware
Anomaly (Shanghai) Advertising Co., Ltd.	Shanghai
Anomaly B.V.	Netherlands
Anomaly Inc.	Ontario
Anomaly London LLP	United Kingdom
Anomaly Partners LLC	Delaware
Anomaly UK Limited	United Kingdom
Antidote 360 LLC	Delaware
Attention Partners LLC	Delaware
Boom Marketing Inc.	Ontario
Born AI LLC	Delaware
Bruce Mau Design (USA) LLC	Delaware
Bruce Mau Design Inc.	Ontario

Bruce Mau Holdings Ltd.	Ontario
Capital C Partners GP Inc.	Ontario
Colle & McVoy LLC	Delaware
Com.motion Inc.	Delaware
Concentric Health Experience Limited	United Kingdom
Concentric Partners LLC	Delaware
CP+B - Crispin Porter & Bogusky Brasil Publicidade e Participacao Ltda.	Sao Paulo
Crispin Porter & Bogusky (Hong Kong) Limited	Hong Kong
Crispin Porter & Bogusky LLC	Delaware
Crispin Porter & Bogusky Ltd	United Kingdom
Crispin Porter + Bogusky Denmark ApS	Copenhagen
Crispin Porter + Bogusky Scandinavia AB	Sweden
Cultura United Agency LLC	Delaware
Doner Limited	United Kingdom
Doner Partners LLC	Delaware
Dotglu LLC	Delaware
Elixir Health Experience LLC	Delaware
Enplay Partners LLC	Delaware
Expecting Productions, LLC	California
Forsman & Bodenfors AB	Sweden
Forsman & Bodenfors Factory AB	unknown
Forsman & Bodenfors Inhouse AB	unknown
Forsman & Bodenfors Studios AB	unknown
Gale Creative Agency Private Limited	Bangalore
Gale Partners Inc.	Ontario
Gale Partners LLC	Delaware
Gale Partners LP	Ontario
Happy Forsman & Bodenfors AB	unknown
Hecho en 72 LLC	Delaware
Hello Design, LLC	California
HL Group Partners Limited	United Kingdom
HL Group Partners LLC	Delaware
HPR Partners, LLC	Delaware
Hudson and Sunset Media, LLC	Delaware
Hunter PR Canada LP	Ontario
Hunter PR UK Limited	United Kingdom
Hunter Public Relations UK Limited	United Kingdom
KBP Holdings LLC	Delaware
KBS (Hong Kong) Limited	Unknown
KBS (Shanghai) Advertising Co., Ltd.	Shanghai
KBS+P Canada LP KBS+P Canada SEC	Ontario
KBS+P Ventures LLC	Delaware
Kenna Communications GP Inc.	Ontario
Kenna Communications LP	Ontario
Kingsdale Partners LP	Ontario
Kingsdale Shareholder Services US LLC	Delaware

Kirshenbaum Bond Senecal & Partners LLC	Delaware
KIS Investor Services Inc. (Barbados)	Barbados
Kollo AB	unknown
Kwittken & Company Limited	United Kingdom
Kwittken LLC	Delaware
Kwittken LP	Ontario
Kwittken Ltd.	United Kingdom
Laird + Partners New York LLC	Delaware
Laurie, Foard & Wheeler Limited	Unknown
Laurie, Ford + Wheeler LLC	Delaware
LBN Partners LLC	Delaware
Legend PR Partners LLC	Delaware
LifeMed Media, Inc.	Delaware
Luntz Global Partners LLC	Delaware
Main North LP	Ontario
Maxxcom (Barbados) Inc.	Barbados
Maxxcom (USA) Finance Company	Delaware
Maxxcom (USA) Holdings Inc.	Delaware
Maxxcom Global Media LLC	Delaware
Maxxcom Inc.	Delaware
MDC Acquisition Inc.	Delaware
MDC Canada GP Inc.	Canada
MDC Corporate (US) Inc.	Delaware
MDC Europe Ltd.	United Kingdom
MDC Gale43 GP Inc.	Ontario
MDC Innovation Partners LLC	Delaware
MDC Kingsdale GP Inc.	Ontario
MDC Partners Inc.	Canada
MDC Partners UK Holdings Limited	United Kingdom
Mono Advertising, LLC	Delaware
New Team LLC	Delaware
No Sleep Productions LLC	Delaware
Northstar Management Holdco Inc.	Ontario
Northstar Research GP LLC	Delaware
Northstar Research Holdings Canada Inc.	Ontario
Northstar Research Holdings USA LP	Delaware
Northstar Research Partners (UK) Limited	United Kingdom
Northstar Research Partners (USA) LLC	Delaware
Northstar Research Partners Inc. (ON)	Ontario
Pictor Digital Creative Services LLC	Delaware
Plus Productions, LLC	Delaware
Pt. Northstar Business Consulting Partners	Republic of Indonesia
Redscout LLC	Delaware
Redscout Ltd.	United Kingdom
Relevent Partners LLC	Delaware
Rumble Fox LLC	Delaware

Sloane & Company LLC	Delaware
SML Partners Holdings LLC	Delaware
Source Marketing LLC	New York
Studio Pica Inc.	Canada
Sugar Daddy Development, LLC	Delaware
TargetCast LLC	Delaware
Targetcom LLC	Delaware
TC Acquisition Inc.	Delaware
TEAM LP	Ontario
The Arsenal LLC	Delaware
The Path Worldwide Limited	United Kingdom
Trade X Partners LLC	Delaware
Trailer Productions, LLC	California
TS Holdings LP	Ontario
Union Advertising Canada LP	Ontario
Unique Influence Partners LLC	Delaware
Varick Media Management LLC	Delaware
Veritas Communications Inc.	Ontario
Vitro Partners LLC	Delaware
VitroRobertson LLC	Delaware
Walker Brook Capital LLC	Delaware
Y Media Labs LLC	Delaware
Y Media Labs Private Limited	unknown
Yamamoto Moss Mackenzie, Inc.	Delaware
Zig Management (USA) Inc.	Delaware
Zyman Group, LLC	Delaware

EX-23

Exhibit 23

Consent of Independent Registered Public Accounting Firm

MDC Partners Inc.

New York, New York

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-159831 and 333-176059) and Form S-3 (No. 333-194445) of MDC Partners Inc., of our reports dated March 1, 2017, except for Notes 2 and 14 as to which the date is August 31, 2017, relating to the consolidated financial statements and financial statement Schedule II, and our report dated August 31, 2017, relating to the effectiveness of MDC Partners Inc.'s internal control over financial reporting which appear in this Amendment no.1 to Form 10-K/A.

/s/ BDO USA, LLP

BDO USA, LLP

New York, New York

August 31, 2017

EX-31.1

Exhibit 31.1

Certification Pursuant to Rules 13a-14(a) and 15d-14(a) as

Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Scott L. Kauffman, certify that:

1. I have reviewed this annual report on Form 10-K/A for the year ended December 31, 2016 of MDC Partners Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent function):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 31, 2017	/s/ Scott L. Kauffman
		By:	Scott L. Kauffman
		Title:	Chairman and Chief Executive Officer

EX-32.1

Exhibit 31.2

Certification Pursuant to Rules 13a-14(a) and 15d-14(a) as

Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, David Doft, certify that:

1. I have reviewed this annual report on Form 10-K/A for the year ended December 31, 2016 of MDC Partners Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent function):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 31, 2017	/s/ David Doft
		By:	David Doft
		Title:	Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification Pursuant to 18 U.S.C. Section 1350, as

Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the annual report of MDC Partners Inc. (the “Company”) on Form 10-K/A for fiscal year ended December 31, 2016, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Scott L. Kauffman, Chairman and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to my knowledge, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated as of	August 31, 2017	/s/ Scott L. Kauffman
		By:	Scott L. Kauffman
		Title:	Chairman and Chief Executive Officer

This certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed “filed” by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Report, irrespective of any general incorporation language contained in such filing.

A signed original of this written statement required by Section 906, or other documents authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

Certification Pursuant to 18 U.S.C. Section 1350, as

Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the annual report of MDC Partners Inc. (the “Company”) on Form 10-K/A for fiscal year ended December 31, 2016, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David Doft, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to my knowledge, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated as of	August 31, 2017	/s/ David Doft
		By:	David Doft
		Title:	Chief Financial Officer

This certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed “filed” by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Report, irrespective of any general incorporation language contained in such filing.

A signed original of this written statement required by Section 906, or other documents authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Feb. 22, 2017
Document Information [Line Items]
Trading Symbol	MDCA
Entity Registrant Name	MDC PARTNERS INC
Entity Central Index Key	0000876883
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float	$ 0.0
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		0
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		3,755

XML

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue:
Services	$ 1,385,785,000	$ 1,326,256,000	$ 1,223,512,000
Operating Expenses:
Cost of services sold	936,133,000	879,716,000	798,518,000
Office and general expenses	306,251,000	322,207,000	290,073,000
Depreciation and amortization	46,446,000	52,223,000	47,172,000
Goodwill, Impairment Loss	48,524,000	0	0
Costs and Expenses, Total	1,337,354,000	1,254,146,000	1,135,763,000
Operating income	48,431,000	72,110,000	87,749,000
Other Income (Expenses):
Other, net	414,000	7,238,000	689,000
Foreign exchange loss	(213,000)	(39,328,000)	(18,482,000)
Interest expense and finance charges	(65,858,000)	(57,903,000)	(55,265,000)
Loss on redemption of Notes	(33,298,000)	0	0
Interest income	808,000	467,000	418,000
Nonoperating Income (Expense), Total	(98,147,000)	(89,526,000)	(72,640,000)
Income (loss) from continuing operations before income taxes and equity in earnings of non-consolidated affiliates	(49,716,000)	(17,416,000)	15,109,000
Income tax (benefit) expense	(9,404,000)	3,761,000	9,776,000
Income (loss) from continuing operations before equity in earnings of non-consolidated affiliates	(40,312,000)	(21,177,000)	5,333,000
Equity in earnings (losses) of non-consolidated affiliates	(309,000)	1,058,000	1,406,000
Income (loss) from continuing operations	(40,621,000)	(20,119,000)	6,739,000
Loss from discontinued operations attributable to MDC Partners Inc., net of taxes	0	(6,281,000)	(21,260,000)
Net loss	(40,621,000)	(26,400,000)	(14,521,000)
Net income attributable to the noncontrolling interests	(5,218,000)	(9,054,000)	(6,890,000)
Net loss attributable to MDC Partners Inc.	$ (45,839,000)	$ (35,454,000)	$ (21,411,000)
Basic and Diluted
Loss from continuing operations attributable to MDC Partners Inc. common shareholders (in USD per share)	$ (0.89)	$ (0.58)	$ 0.00
Discontinued operations attributable to MDC Partners Inc. common shareholders (in USD per share)	0.00	(0.13)	(0.43)
Net loss attributable to MDC Partners Inc. common shareholders (in USD per share)	$ (0.89)	$ (0.71)	$ (0.43)
Weighted Average Number of Common Shares Outstanding:
Basic and diluted (in shares)	51,345,807	49,875,282	49,545,350
Stock-based compensation expense is included in the following line items above:
Cost of services sold	$ 21,003,000	$ 17,796,000	$ 17,696,000
Share-based Compensation	21,003,000	17,796,000	17,696,000
Cost of Sales [Member]
Stock-based compensation expense is included in the following line items above:
Cost of services sold	14,237,000	11,710,000	9,883,000
Share-based Compensation	14,237,000	11,710,000	9,883,000
General and Administrative Expense [Member]
Stock-based compensation expense is included in the following line items above:
Cost of services sold	6,766,000	6,086,000	7,813,000
Share-based Compensation	$ 6,766,000	$ 6,086,000	$ 7,813,000

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Comprehensive Loss
Net loss	$ (40,621)	$ (26,400)	$ (14,521)
Other comprehensive income (loss), net of applicable tax:
Foreign currency translation adjustment	(4,586)	9,564	1,736
Benefit plan adjustment, net of income tax benefit, nil for 2016, nil for 2015, and income tax benefit of $1,112 for 2014	(3,101)	(423)	(10,403)
Other comprehensive income (loss)	(7,687)	9,141	(8,667)
Comprehensive loss for the year	(48,308)	(17,259)	(23,188)
Comprehensive income attributable to the noncontrolling interests	(5,612)	(4,186)	(5,178)
Comprehensive loss attributable to MDC Partners Inc.	$ (53,920)	$ (21,445)	$ (28,366)

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Pension and other postretirement benefit plans, tax	$ 0	$ 0	$ (1,112,000)

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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 27,921	$ 61,458
Cash held in trust	5,341	5,122
Accounts receivable, less allowance for doubtful accounts of $1,523 and $1,306	388,340	361,044
Inventory, Work in Process, Gross	33,118	44,012
Other current assets	34,862	22,728
Total Current Assets	489,582	494,364
Fixed assets, at cost, less accumulated depreciation of $105,134 and $96,554	78,377	63,557
Investment in non-consolidated affiliates	4,745	6,263
Goodwill	844,759	870,301
Other intangible assets, net	85,071	72,382
Deferred tax assets	41,793	29,748
Other assets	33,051	41,010
Total Assets	1,577,378	1,577,625
Current Liabilities:
Accounts payable	251,456	359,568
Trust Liability, Current	5,341	5,122
Accrued Liabilities and Other Liabilities	303,581	297,701
Advance billings	133,925	119,100
Current portion of long-term debt	228	470
Total Current Liabilities	802,821	912,361
Long-term debt, less current portion	936,208	728,413
Other liabilities	56,012	44,905
Deferred tax liabilities	110,359	101,863
Total Liabilities	2,026,674	2,004,246
Redeemable Noncontrolling Interest, Equity, Redemption Value	60,180	69,471
Commitments, Contingencies and Guarantees (Note 16)
Shareholders’ Deficit:
Preferred shares, unlimited authorized, none issued	0	0
Common Stock, Value, To be Issued	2,360	0
Charges in excess of capital	(311,581)	(315,261)
Accumulated deficit	(581,848)	(536,009)
Accumulated other comprehensive income (loss)	(1,824)	6,257
MDC Partners Inc. Shareholders’ Deficit	(575,109)	(575,171)
Noncontrolling Interests	65,633	79,079
Total Shareholders’ Deficit	(509,476)	(496,092)
Total Liabilities, Redeemable Noncontrolling Interests and Shareholders’ Deficit	1,577,378	1,577,625
Common Class A
Shareholders’ Deficit:
Common stock	317,783	269,841
Common Class B
Shareholders’ Deficit:
Common stock	1	1
Contingent and fixed payments [Member]
Current Liabilities:
Current portion of deferred acquisition consideration	108,290	130,400
Long-term portion of deferred acquisition consideration	$ 121,274	$ 216,704

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts receivable, allowance for doubtful accounts (in dollars)	$ 1,523	$ 1,306
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 105,133	$ 96,554
Preferred stock, shares issued	0	0
Common Stock, Shares, To be Issued	100,000	0
Common Class A
Common stock, shares issued	52,798,303	49,986,705
Common stock, shares outstanding	52,798,303	49,986,705
Common Stock, Par or Stated Value Per Share	$ 0	$ 0
Common Class B
Common stock, shares issued	3,755	3,755
Common stock, shares outstanding	3,755	3,755
Common Stock, Par or Stated Value Per Share	$ 0	$ 0

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CONSOLIDATED STATEMENTS OF CASH FLOWS	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Cash flows (used in) provided by operating activities:
Net loss	$ (40,621,000)	$ (26,400,000)	$ (14,521,000)
Loss from discontinued operations	0	(6,281,000)	(21,260,000)
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	(40,621,000)	(20,119,000)	6,739,000
Share-based Compensation	21,003,000	17,796,000	17,696,000
Adjustments to reconcile income (loss) from continuing operations to cash provided by operating activities:
Depreciation	22,293,000	18,871,000	16,462,000
Amortization of intangibles	24,153,000	33,352,000	30,710,000
Amortization of deferred finance charges and debt discount	9,135,000	2,270,000	2,247,000
Goodwill, Impairment Loss	48,524,000	0	0
Loss on redemption of Notes	26,873,000	0	0
Adjustment to deferred acquisition consideration	8,227,000	38,887,000	18,652,000
Deferred income taxes	(10,038,000)	(79,000)	8,317,000
Earnings (losses) of non-consolidated affiliates	309,000	(1,058,000)	(1,406,000)
Distributions from non-consolidated affiliates	7,402,000	0	3,409,000
Other and non-current assets and liabilities	13,527,000	4,680,000	(7,805,000)
Foreign exchange	(8,240,000)	30,185,000	14,821,000
Changes in working capital:
Accounts receivable	(16,752,000)	(4,796,000)	(35,800,000)
Increase (Decrease) in Inventories	(13,048,000)	3,879,000	(23,351,000)
Prepaid expenses and other current assets	(13,608,000)	1,550,000	(1,949,000)
Accounts payable, accruals and other current liabilities	(110,018,000)	75,111,000	88,955,000
Increase (Decrease) in Deferred Revenue	11,397,000	(23,508,000)	(13,805,000)
Cash flows (used in) provided by continuing operating activities	(1,212,000)	162,737,000	167,185,000
Discontinued operations	0	(1,342,000)	(1,827,000)
Net cash (used in) provided by operating activities	(1,212,000)	161,395,000	165,358,000
Gain (Loss) on Disposition of Assets	(424,000)	(6,526,000)	0
Cash flows used in investing activities:
Capital expenditures	(29,432,000)	(23,575,000)	(26,416,000)
Increase (Decrease) in Deposit Assets	2,528,000	0	0
Payments for (Proceeds from) Investments	666,000	8,631,000	85,000
Acquisitions, net of cash acquired	2,531,000	(24,778,000)	(68,344,000)
Other investments	(3,835,000)	(7,272,000)	(6,312,000)
Cash flows used in continuing investing activities	(25,196,000)	(46,994,000)	(97,578,000)
Discontinued operations	0	17,101,000	(2,108,000)
Net cash used in investing activities	(25,196,000)	(29,893,000)	(99,686,000)
Cash flows used in financing activities:
Acquisition related payments	(135,693,000)	(134,056,000)	(78,322,000)
Distributions to noncontrolling interests	(7,772,000)	(9,503,000)	(6,523,000)
Payment of dividends	(32,918,000)	(42,313,000)	(37,698,000)
Repayment of long-term debt	(507,000)	(534,000)	(656,000)
Premium paid on redemption of Notes	(26,873,000)	0	0
Deferred financing costs	(21,569,000)	0	(3,659,000)
Purchase of shares	(3,350,000)	(2,388,000)	(5,414,000)
Other	0	224,000	112,000
Cash flows used in continuing financing activities	(9,257,000)	(188,570,000)	(53,223,000)
Discontinued operations	0	(40,000)	(40,000)
Net cash used in financing activities	(9,257,000)	(188,610,000)	(53,263,000)
Effect of exchange rate changes on cash and cash equivalents	2,128,000	5,218,000	(1,068,000)
(Decrease) increase in cash and cash equivalents	(33,537,000)	(51,890,000)	11,341,000
Cash and cash equivalents at beginning of year	61,458,000	113,348,000	102,007,000
Cash and cash equivalents at end of year	27,921,000	61,458,000	113,348,000
Supplemental disclosures:
Cash income taxes paid	2,895,000	1,887,000	431,000
Cash interest paid	64,671,000	52,666,000	49,253,000
Change in cash held in trusts	219,000	(1,297,000)	6,419,000
Non-cash transactions:
Capital leases	265,000	140,000	773,000
Notes Receivable in exchange for shares of subsidiary	0	0	1,746,000
Dividends Payable	739,000	912,000	1,347,000
Stock Issued During Period, Value, Acquisitions	34,219,000
Leasehold improvements financed by landlord	7,250,000	0	0
Six Point Five Zero Percentage Notes [Domain]
Cash flows used in financing activities:
Proceeds from issuance of notes	900,000,000	0	0
6.75% Notes
Cash flows used in financing activities:
Proceeds from issuance of notes	0	0	78,937,000
Repayment of 6.75% Notes	(735,000,000)	0	0
Wells Fargo Capital Finance, Llc [Member] | Revolving Credit Facility [Member]
Cash flows used in financing activities:
Repayments of Lines of Credit	(1,790,108,000)	(703,020,000)	(378,985,000)
Proceeds from Lines of Credit	1,844,533,000	703,020,000	378,985,000
Common Stock [Member] | Common Class A
Non-cash transactions:
Stock Issued During Period, Value, New Issues	10,458,000	0	0
Forsman & Bodenfors AB [Domain] | Common Stock [Member] | Common Class A
Non-cash transactions:
Stock Issued During Period, Value, Acquisitions	$ 34,219,000	$ 0	$ 0

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)	Dec. 31, 2016	Dec. 31, 2014	Dec. 31, 2013	Mar. 20, 2013
6.75% Notes
Stated interest rate	6.75%	6.75%	6.75%	6.75%

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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT) - USD ($)	Total	Common Class A	Common Class B	Common Stock Common Class A	Common Stock Common Class B	Share Capital to Be Issued	Additional Paid-in Capital	Charges in Excess of Capital	Retained Earnings [Member]	Stock Subscription Receivable	Accumulated Other Comprehensive Loss	MDC Partners Inc. Shareholders’ Deficit	Noncontrolling Interests	Forsman & Bodenfors AB [Domain] Common Stock Common Class A	Contingent Consideration Classified as Equity [Member] MDC Partners Inc. Shareholders’ Deficit	Contingent Consideration, Liability Settlements [Domain]	Contingent Consideration, Liability Settlements [Domain] MDC Partners Inc. Shareholders’ Deficit
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	$ 0			$ 7,661,000			$ (7,661,000)
Noncontrolling Interest, Increase from Business Combination	50,118,000												$ 50,118,000
Stockholders' equity, beginning balance at Dec. 31, 2013	(290,180,000)			$ 262,655,000	$ 1,000	$ 424,000	0	$ (126,352,000)	$ (479,144,000)	$ (55,000)	$ (797,000)	$ (343,268,000)	53,088,000
Common stock outstanding, beginning balance (in shares) at Dec. 31, 2013				49,092,427	3,755	42,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss attributable to MDC Partners	(21,411,000)								(21,411,000)			(21,411,000)
Other comprehensive income (loss)	(8,667,000)										(6,955,000)	(6,955,000)	(1,712,000)
Shares acquired and canceled	(5,414,000)			$ (5,414,000)								(5,414,000)
Shares acquired and cancelled (in shares)				(216,004)
Stock subscription receipts	55,000									55,000		55,000
Stock-based compensation	9,868,000						9,868,000					9,868,000
Noncontrolling Interest, Change in Redemption Value							(38,850,000)					(38,850,000)
Temporary Equity, Accretion to Redemption Value	(38,850,000)
Dividends paid and to be paid	(37,244,000)						(37,244,000)					(37,244,000)
Other	54,000			$ 915,000		$ (424,000)	(437,000)					54,000
Other (in shares)				42,000		(42,000)
Transfer to charges in excess of capital	0						83,316,000	(83,316,000)
Common stock outstanding, ending balance (in shares) at Dec. 31, 2014				49,680,109	3,755	0
Stockholders' equity, ending balance at Dec. 31, 2014	(359,502,000)			$ 265,817,000	$ 1,000	$ 0	0	(209,668,000)	(500,555,000)	0	(7,752,000)	(452,157,000)	92,655,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures				761,686
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	$ (17,831,000)						(8,992,000)					(8,992,000)	(8,839,000)
Stock Issued During Period, Shares, New Issues	0
Stock Issued During Period, Value, New Issues				$ 0
Stock Issued During Period, Value, Acquisitions														$ 0
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	$ 0			6,069,000			(6,069,000)
Noncontrolling Interest, Increase from Business Combination	(51,488,000)						(42,780,000)					(42,780,000)	(8,708,000)
Net loss attributable to MDC Partners	(35,454,000)											(35,454,000)
Other comprehensive income (loss)	9,141,000										14,009,000	14,009,000	(4,868,000)
Shares acquired and canceled	(2,388,000)			$ (2,388,000)								(2,388,000)
Shares acquired and cancelled (in shares)				(96,777)
Options Exercised	224,000			$ 343,000			(119,000)					224,000
Options Exercised (in shares)				37,500
Stock-based compensation	8,437,000						8,437,000					8,437,000
Temporary Equity, Accretion to Redemption Value	(22,809,000)						(22,809,000)					(22,809,000)
Dividends paid and to be paid	(42,253,000)						(42,253,000)					(42,253,000)
Transfer to charges in excess of capital	0						105,593,000	(105,593,000)
Common stock outstanding, ending balance (in shares) at Dec. 31, 2015		49,986,705	3,755	49,986,705	3,755	0
Stockholders' equity, ending balance at Dec. 31, 2015	$ (496,092,000)			$ 269,841,000	$ 1,000	$ 0	0	(315,261,000)	(536,009,000)	0	6,257,000	(575,171,000)	79,079,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures				365,873
Stock Issued During Period, Shares, New Issues	0
Stock Issued During Period, Value, New Issues				$ 0
Stock Issued During Period, Value, Acquisitions														0
Noncontrolling Interest, Increase from Business Combination	$ 8,936,000						22,776,000					22,776,000	(13,840,000)
Net loss attributable to MDC Partners	(45,839,000)											(45,839,000)
Other comprehensive income (loss)	(7,687,000)										(8,081,000)	(8,081,000)	394,000
Stock Appreciation Rights Exercised (in shares)						100,000
Stock Authorized During Period, Value, To be Issued						$ 2,360,000
Issuance of restricted stock (in shares)				425,915
Stock Issued During Period, Value, Restricted Stock and Stock Options, Net of Forfeitures	0			$ 6,615,000			(6,615,000)					0
Shares acquired and canceled	(3,350,000)			$ (3,350,000)								(3,350,000)
Shares acquired and cancelled (in shares)				(205,876)
Stock-based compensation	10,662,000						10,662,000					10,662,000
Temporary Equity, Accretion to Redemption Value	9,604,000						9,604,000					9,604,000
Dividends paid and to be paid	(32,747,000)						(32,747,000)					(32,747,000)
Transfer to charges in excess of capital	0						(3,680,000)	3,680,000
Common stock outstanding, ending balance (in shares) at Dec. 31, 2016		52,798,303	3,755	52,798,303	3,755	100,000
Stockholders' equity, ending balance at Dec. 31, 2016	$ (509,476,000)			$ 317,783,000	$ 1,000	$ 2,360,000	$ 0	$ (311,581,000)	$ (581,848,000)	$ 0	$ (1,824,000)	$ (575,109,000)	$ 65,633,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, New Issues	0			691,559
Stock Issued During Period, Value, New Issues				$ 10,458,000												$ 12,818,000	$ 12,818,000
Stock Issued During Period, Shares, Acquisitions				1,900,000
Stock Issued During Period, Value, Acquisitions	$ 34,219,000													$ 34,219,000	$ 34,219,000

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Basis of Presentation

12 Months Ended

Dec. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

1. Basis of Presentation

MDC Partners Inc. (the “Company” or “MDC”) has prepared the consolidated financial statements included herein pursuant to the rules and regulations of the United States Securities and Exchange Commission (the “SEC”) and in accordance with generally accepted accounting principles of the United States of America (“U.S. GAAP”).

Based in part on feedback from the SEC, the Company performed a comprehensive review of its reportable segments, reassessed the aggregation of its operating segments, and identified four new reportable segments. As each Partner Firm represents an operating segment, the Company aggregates Partner Firms that meet the aggregation criteria pursuant to the guidance of the Financial Accounting Standards Board (the “FASB”) Accounting Standards Codification (the “ASC”) Topic 280, Segment Reporting, into one of four reportable segments and combines and discloses those Partner Firms that do not meet the aggregation criteria in the All Other category. For further information, see Note 14, “Segment Information.”

Nature of Operations

MDC is a leading provider of global marketing, advertising, activation, communications and strategic consulting solutions. MDC’s Partner Firms deliver a wide range of customized services in order to drive growth and business performance for its clients.

MDC Partners Inc., formerly MDC Corporation Inc., is incorporated under the laws of Canada. The Company commenced using the name MDC Partners Inc. on November 1, 2003 and legally changed its name through amalgamation with a wholly-owned subsidiary on January 1, 2004. The Company operates primarily in the U.S., Canada, Europe, Asia, and Latin America.

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Significant Accounting Policies

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Significant Accounting Policies

2. Significant Accounting Policies

The Company’s significant accounting policies are summarized as follows:

Accounting Changes. On December 31, 2016, the Company retrospectively adopted the FASB Accounting Standards Update (“ASU”) 2015-17, Income Taxes (Topic 740). This update requires that deferred tax assets and liabilities be classified as non-current. As a result of the adoption of ASU 2015-17, the balance sheet at December 31, 2015 was adjusted to reflect the reclassification of $14,381 from other current assets to long-term deferred tax assets and $263 from accruals and other liabilities to long-term deferred tax liabilities.

On January 1, 2016, the Company retrospectively adopted the FASB ASU 2015-03, Interest - Imputation of Interest. This update requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. As a result of the adoption of this update, the balance sheet at December 31, 2015 was adjusted to reflect the reclassification of $12,625 from other assets to long-term debt.

Additionally, the Company prospectively adopted the FASB ASU 2016-09, Stock Compensation (Topic 718). As a result of the adoption, there was no material impact.

Principles of Consolidation.  The accompanying consolidated financial statements include the accounts of MDC Partners Inc. and its domestic and international controlled subsidiaries that are not considered variable interest entities, and variable interest entities for which the Company is the primary beneficiary. Intercompany balances and transactions have been eliminated in consolidation.

Reclassifications. Certain reclassifications have been made to the prior period financial statements to conform to the current period presentation. During the three months ended March 31, 2017, the Company changed the presentation of book overdrafts on its statement of cash flows to classify the associated cash flows as operating activities. Book overdrafts were previously presented within financing activities. This resulted in cash outflows of $6,636 and $1,410, and inflows of $37,835, being reclassified from financing activities to operating activities for the for the years ended December 31,2016, 2015 and 2014, respectively. There was no impact on the Company’s consolidated statements of operations, comprehensive income (loss), or balance sheets.

Use of Estimates.  The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities including goodwill, intangible assets, contingent deferred acquisition consideration, valuation allowances for receivables, deferred tax assets and the amounts of revenue and expenses reported during the period. These estimates are evaluated on an ongoing basis and are based on historical experience, current conditions and various other assumptions believed to be reasonable under the circumstances. Actual results could differ from these estimates.

Fair Value.  The Company applies the fair value measurement guidance of the FASB Accounting Standards Codification (the “ASC”) Topic 820, Fair Value Measurements, for financial assets and liabilities that are required to be measured at fair value and for non-financial assets and liabilities that are not required to be measured at fair value on a recurring basis, including goodwill and other identifiable intangible assets. The measurement of fair value requires the use of techniques based on observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions. The inputs create the following fair value hierarchy:

• Level 1 - Quoted prices for identical instruments in active markets.

• Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations where inputs are observable or where significant value drivers are observable.

• Level 3 - Instruments where significant value drivers are unobservable to third parties.

When available, the Company uses quoted market prices to determine the fair value of its financial instruments and classifies such items in Level 1. In some cases, quoted market prices are used for similar instruments in active markets and the Company classifies such items in Level 2.

Concentration of Credit Risk.  The Company provides marketing communications services to clients who operate in most industry sectors. Credit is granted to qualified clients in the ordinary course of business. Due to the diversified nature of the Company’s client base, the Company does not believe that it is exposed to a concentration of credit risk. No client accounted for more than 10% of the Company’s consolidated accounts receivable as of December 31, 2016 and 2015. No clients accounted for 10% of the Company's revenue in each of the years ended December 31, 2016, 2015, and 2014.

Cash and Cash Equivalents.  The Company’s cash equivalents are primarily comprised of investments in overnight interest-bearing deposits, commercial paper and money market instruments and other short-term investments with original maturity dates of three months or less at the time of purchase. The Company has a concentration of credit risk in that there are cash deposits in excess of federally insured amounts.

Cash in Trust. A subsidiary of the Company holds restricted cash in trust accounts related to funds received on behalf of clients. Such amounts are held in escrow under depositary service agreements and distributed at the direction of the clients.  The funds are presented as a corresponding liability on the balance sheet.

Allowance for Doubtful Accounts.  Trade receivables are stated at invoiced amounts less allowances for doubtful accounts. The allowances represent estimated uncollectible receivables associated with potential customer defaults usually due to customers’ potential insolvency. The allowances include amounts for certain customers where a risk of default has been specifically identified. The assessment of the likelihood of customer defaults is based on various factors, including the length of time the receivables are past due, historical experience and existing economic conditions.

Expenditures Billable to Clients.  Expenditures billable to clients consist principally of outside vendor costs incurred on behalf of clients when providing advertising, marketing and corporate communications services that have not yet been invoiced to clients. Such amounts are invoiced to clients at various times over the course of the production process.

Fixed Assets.  Fixed assets are stated at cost, net of accumulated depreciation. Computers, furniture and fixtures are depreciated on a straight-line basis over periods of three to seven years. Leasehold improvements are depreciated on a straight-line basis over the lesser of the term of the related lease or the estimated useful life of the asset. Repairs and maintenance costs are expensed as incurred.

Impairment of Long-lived Assets.  In accordance with the FASB ASC, a long-lived asset or asset group is tested for recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable. When such events occur, the Company compares the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset or asset group to the carrying amount of such asset or asset group. If this comparison indicates that there is an impairment, the amount of the impairment is typically calculated using discounted expected future cash flows where observable fair values are not readily determinable. The discount rate applied to these cash flows is based on the Company’s weighted average cost of capital (“WACC”), risk adjusted where appropriate.

Equity Method Investments.  The equity method is used to account for investments in entities in which the Company has an ownership interest of less than 50% and has significant influence, or joint control by contractual arrangement, (i) over the operating and financial policies of the affiliate or (ii) has an ownership interest greater than 50%; however, the substantive participating rights of the noncontrolling interest shareholders preclude the Company from exercising unilateral control over the operating and financial policies of the affiliate. The Company’s investments accounted for using the equity method include a 30% undivided interest in a real estate joint venture and various interests in investment funds. The Company’s management periodically evaluates these investments to determine if there has been a decline in value that is other than temporary. These investments are included in investments in non-consolidated affiliates.

During the year ended December 31,2016, the Company sold its ownership in two of these equity method investments for $4,023 and recognized a gain of $623 in Other income.

During the year ended December 31, 2015, the Company sold its ownership in one of these equity method investments for $2,094 and recognized a gain of $1,086 in Other income.

Cost Method Investments.  From time to time, the Company makes non-material cost based investments in start-up advertising technology companies and innovative consumer product companies where the Company does not exercise significant influence over the operating and financial policies of the investee. The total net cost basis of these investments, which is included in Other Assets on the balance sheet, as of December 31, 2016 and 2015 was $10,132 and $11,763, respectively. These investments are periodically evaluated to determine whether a significant event or change in circumstances has occurred that may impact the fair value of each investment other than temporary declines below book value. A variety of factors are considered when determining if a decline is other than temporary, including, among others, the financial condition and prospects of the investee, as well as the Company’s investment intent.

During the year ended December 31, 2016, the Company sold its ownership in three of these cost method investments for an aggregate purchase price of $4,074 and recognized a gain of $1,309 in Other income.

During the year ended December 31, 2015, the Company sold its ownership in six of these cost method investments for an aggregate purchase price of $11,364 and recognized a gain of $5,440 in Other income.

In addition, the Company’s partner agencies may receive noncontrolling equity interests from start-up companies in lieu of fees. During the year ended December 31, 2014, the Company liquidated two such equity interest positions in exchange for an aggregate purchase price equal to $8,248. The purchasers of these equity investments were current investors in such entities and two executive officers of our subsidiary partner agencies.

Goodwill and Indefinite Lived Intangibles.  In accordance with the FASB ASC topic, Goodwill and Other Intangible Assets, goodwill and indefinite life intangible assets (trademarks) acquired as a result of a business combination which are not subject to amortization are tested for impairment annually as of October 1st of each year, or more frequently if indicators of potential impairment exist. For goodwill, impairment is assessed at the reporting unit level.

For the annual impairment testing the Company has the option of assessing qualitative factors to determine whether it is more likely than not that the carrying amount of a reporting unit exceeds its fair value or performing the two-step goodwill impairment test. Qualitative factors considered in the assessment include industry and market considerations, the competitive environment, overall financial performance, changing cost factors such as labor costs, and other factors specific to each reporting unit such as change in management or key personnel.

If the Company elects to perform the qualitative assessment and concludes that it is more likely than not that the fair value of the reporting unit is more than its carrying amount, then goodwill is not considered impaired and the two-step goodwill impairment test is not necessary. For reporting units for which the qualitative assessment concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount and for reporting units for which the qualitative assessment is not performed, the Company will perform the first step of the goodwill impairment test, which compares the fair value of the reporting unit to its carrying amount. If the fair value of the reporting unit exceeds the carrying amount of the net assets assigned to that reporting unit, goodwill is not considered impaired and additional analysis is not required. However, if the carrying amount of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, then the second step of the goodwill impairment test must be performed to determine the implied fair value of the reporting unit’s goodwill.

Determining the fair value of a reporting unit involves the use of significant estimates and assumptions. The Company’s goodwill impairment test uses the income approach to estimate a reporting unit’s fair value. The income approach is based on a discounted cash flow (“DCF”) method, which requires the exercise of significant judgment, including judgment about the amount and timing of expected future cash flows, assumed terminal value and appropriate discount rates.

The DCF estimates incorporate expected cash flows that represent a spectrum of the amount and timing of possible cash flows of each reporting unit from a market participant perspective. The expected cash flows are developed as part of the Company’s routine long-range planning process using projections of revenue and expenses and related cash flows based on assumed long-term growth rates and demand trends and appropriate discount rates based on a reporting unit’s WACC as determined by considering the observable WACC of comparable companies and factors specific to the reporting unit (for example, size). The terminal value is estimated using a constant growth method which requires an assumption about the expected long-term growth rate. The estimates are based on historical data and experience, industry projections, economic conditions, and the Company’s expectations.

The assumptions used for the long-term growth rate and WACC in the annual goodwill impairment tests are as follows:

	October 1,
	2016	2015
Long-term growth rate	3%	3%
WACC	10.39% - 13.45%	8.92% - 11.95%

The Company’s reporting units vary in size with respect to revenue and operating profits. These differences drive variations in fair value of the reporting units. In addition, these differences as well as differences in book value, including goodwill, cause variations in the amount by which fair value exceeds the carrying amount of the reporting units. The reporting unit goodwill balances vary by reporting unit primarily because it relates specifically to the Partner Firm’s goodwill which was determined at the date of acquisition.

Under the second step of the goodwill impairment test, the Company utilizes both a market approach and income approach to estimate the implied fair value of a reporting unit’s goodwill. For the market approach, the Company utilizes both the guideline public company method and the precedent transaction method. For the income approach, the Company utilizes a DCF method. The Company weights the market and income approaches to arrive at an implied fair value of goodwill. If the Company determines that the carrying amount of a reporting unit’s goodwill exceeds its implied fair value, an impairment loss equal to the difference is recorded.

For the 2015 annual goodwill impairment testing, the Company had 13 reporting units. All of the reporting units were subject to the two-step test. As the fair value of all reporting units were in excess of their respective carrying amounts, there was no impairment of goodwill. The range of the excess of the fair value over the carrying amount was from 7% to over 100%. The Company performed a sensitivity analysis which included a 1% increase to the WACC. Based on the results of that analysis, one reporting unit, which was comprised of the marketing experiential businesses, was at risk of failing.

The Company noted no significant events or conditions during the first and second quarter of 2016 that would have affected the conclusions from the annual assessment. During the third quarter of 2016, the Company changed its operating segments, as a result of the management structure change as discussed in Note 14, which resulted in a corresponding change to the Company’s reporting units. Each Partner Firm now represents an operating segment as well as a reporting unit for goodwill impairment testing. As a result of the changes in the reporting units, the Company performed further analysis to assess whether the results of the 2015 testing would have been different had it been performed at the Partner Firm level. This change in operating segments, coupled with a decline in operating performance required the Company to perform interim goodwill testing on one of its experiential reporting units. Additionally, a triggering event occurred during the third quarter of 2016 that required the Company to perform interim goodwill testing on one non-material reporting unit. These two reporting units failed the first step of the goodwill impairment testing, and the second step of the goodwill impairment testing resulted in a partial impairment of goodwill of $27,893 and $1,738 relating to the experiential reporting unit and non-material reporting unit, respectively. See Note 8 for further information.

For the 2016 annual goodwill impairment test, the Company had 31 reporting units, all of which were subject to the two-step test.

For the 2016 annual goodwill impairment test, the carrying amount of one of the Company’s strategic communications reporting unit exceeded its fair value and the second step of the goodwill impairment test was performed, resulting in a partial impairment of goodwill of $18,893. The fair value for all other reporting units were in excess of their respective carrying amounts and as a result there was no additional impairment of goodwill. The range of the excess of the fair value over the carrying amount was from 5% to over 100%. The Company performed a sensitivity analysis which included a 1% increase to the WACC. Based on the results of that analysis, the non-material reporting unit for which a partial impairment of goodwill was recorded during the third quarter of 2016 would be at risk of failing; however, there were no events or circumstances that would more likely than not reduce the fair value of such reporting unit below its respective carrying value between the interim and annual goodwill impairment testing performed.

The Company believes the estimates and assumptions used in the calculations are reasonable. However, if there was an adverse change in the facts and circumstances, then an impairment charge may be necessary in the future. The Company will monitor its reporting units to determine if there is an indicator of potential impairment. Should the fair value of any of the Company’s reporting units fall below its carrying amount because of reduced operating performance, market declines, changes in the discount rate, or other conditions, charges for impairment may be necessary. Subsequent to the annual impairment test at October 1, 2016, there were no events or circumstances that triggered the need for an interim impairment test. See Note 8 for further information.

Definite Lived Intangible Assets.  In accordance with the FASB ASC, acquired intangibles are subject to amortization over their useful lives. The method of amortization selected reflects the pattern in which the economic benefits of the specific intangible asset is consumed or otherwise used up. If that pattern cannot be reliably determined, a straight-line amortization method is used over the estimated useful life. Intangible assets that are subject to amortization are reviewed for potential impairment at least annually or whenever events or circumstances indicate that carrying amounts may not be recoverable. See also Note 8.

BusinessCombinations. Business combinationsare accounted for using the acquisition method and accordingly, the assets acquired (including identified intangible assets), the liabilities assumed and any noncontrolling interest in the acquired business are recorded at their acquisition date fair values. The Company’s acquisition model typically provides for an initial payment at closing and for future additional contingent purchase price obligations. Contingent purchase price obligations are recorded as deferred acquisition consideration on the balance sheet at the acquisition date fair value and are remeasured at each reporting period. Changes in such estimated values are recorded in the results of operations. For the years ended December 31, 2016, 2015 and 2014, $7,972, $36,344 and $16,467, respectively, related to changes in estimated value was recorded as operating expenses. For further information, see Note 4 and Note 13. For the years ended December 31, 2016, 2015, and 2014, $2,640, $2,912 and $6,133, respectively, of acquisition related costs were charged to operations.

For each acquisition, the Company undertakes a detailed review to identify other intangible assets and a valuation is performed for all such identified assets. The Company uses several market participant measurements to determine estimated value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies. Like most service businesses, a substantial portion of the intangible asset value that the Company acquires is the specialized know-how of the workforce, which is treated as part of goodwill and is not required to be valued separately. The majority of the value of the identifiable intangible assets acquired is derived from customer relationships, including the related customer contracts, as well as trade names. In executing the Company’s overall acquisition strategy, one of the primary drivers in identifying and executing a specific transaction is the existence of, or the ability to, expand the existing client relationships. The expected benefits of the Company’s acquisitions are typically shared across multiple agencies and regions.

Redeemable Noncontrolling Interests.  Many of the Company’s acquisitions include contractual arrangements where the noncontrolling shareholders have an option to purchase, or may require the Company to purchase, such noncontrolling shareholders’ incremental ownership interests under certain circumstances and the Company has similar call options under the same contractual terms. The amount of consideration under these contractual arrangements is not a fixed amount, but rather is dependent upon various valuation formulas as described in Note 16. In the event that an incremental purchase may be required of the Company, the amounts are recorded as redeemable noncontrolling interests in mezzanine equity on the balance sheet at their acquisition date fair value and adjusted for changes to their estimated redemption value through additional paid-in capital (but not less than their initial redemption value), except for foreign currency translation adjustments. These adjustments will not impact the calculation of earnings (loss) per share if the redemption values are less than the estimated fair values. For the three years ended December 31, 2016, 2015, and 2014, there was no impact on the Company's earnings (loss) per share calculation.

The following table presents changes in redeemable noncontrolling interests:

	Years Ended December 31,
	2016			2015			2014
Beginning Balance as of January 1,	$	69,471		$	194,951		$	148,534
Redemptions	(1,708		)	(155,042		)	(4,820		)
Granted (1)	2,274			7,703			13,327
Changes in redemption value	(9,604		)	22,809			38,850
Currency translation adjustments	(253		)	(950		)	(940		)
Ending Balance as of December 31,	$	60,180		$	69,471		$	194,951

(1) Grants in 2015 consisted of transfers from noncontrolling interests related to step-up transactions and new acquisitions.

Subsidiary and Equity Investment Stock Transactions. Transactions involving the purchase, sale or issuance of stock of a subsidiary where control is maintained are recorded as a reduction in the redeemable noncontrolling interests or noncontrolling interests, as applicable. Any difference between the purchase price and noncontrolling interest is recorded to additional paid-in capital. In circumstances where the purchase of shares of an equity investment results in obtaining control, the existing carrying value of the investment is remeasured to the acquisition date fair value and any gain or loss is recognized in results of operations.

Variable Interest Entity.  Effective March 28, 2012, the Company invested in Doner Partners LLC (“Doner”). The Company acquired a 30% voting interest and convertible preferred interests that allow the Company to increase ordinary voting ownership to 70% at the Company’s option. The Company has determined that (i) this entity is a variable interest entity and (ii) the Company is the primary beneficiary because it receives a disproportionate share of profits and losses as compared to its ownership percentage. As such, Doner is consolidated for all periods subsequent to the date of investment.

Doner is a full service integrated creative agency that is included as part of the Company’s portfolio in the Global Integrated Agencies reportable segment. The Company’s Credit Agreement (see Note 11) is guaranteed and secured by all of Doner’s assets.

Total assets and total liabilities of Doner included in the Company’s consolidated balance sheet at December 31, 2016 and 2015, were $102,456 and $57,622, and $122,558 and $86,047, respectively.

Guarantees.  Guarantees issued or modified by the Company to third parties after January 1, 2003 are generally recognized, at the inception or modification of the guarantee, as a liability for the obligations it has undertaken in issuing the guarantee, including its ongoing obligation to stand ready to perform over the term of the guarantee in the event that the specified triggering events or conditions occur. The initial measurement of that liability is the fair value of the guarantee. The recognition of the liability is required even if it is not probable that payments will be required under the guarantee. The Company’s liability associated with guarantees is not significant. (See Note 16.)

Revenue Recognition.  The Company’s revenue recognition policies are established in accordance with the Revenue Recognition topics of the FASB ASC, and accordingly, revenue is recognized when all of the following criteria are satisfied: (i) persuasive evidence of an arrangement exists; (ii) the selling price is fixed or determinable; (iii) services have been performed or upon delivery of the products when ownership and risk of loss has transferred to the client; and (iv) collection of the resulting receivable is reasonably assured.

The Company follows the Multiple-Element Arrangement topic of the FASB ASC, which addresses certain aspects of the accounting by a vendor for arrangements under which it will perform multiple revenue-generating activities and how to determine whether an arrangement involving multiple deliverables contains more than one unit of accounting.

The Company follows the Principal Agent Consideration topic of the FASB ASC which addresses (i) whether revenue should be recorded at the gross amount billed because it has earned revenue from the sale of goods or services, or recorded at the net amount retained because it has earned a fee or commission, and (ii) that reimbursements received for out-of-pocket expenses incurred should be characterized in the income statement as revenue. Accordingly, the Company has included such reimbursed expenses in revenue.

The Company earns revenue from agency arrangements in the form of retainer fees or commissions; from short-term project arrangements in the form of fixed fees or per diem fees for services; and from incentives or bonuses.

Non-refundable retainer fees are generally recognized on a straight-line basis over the term of the specific customer arrangement. Commission revenue is earned and recognized upon the placement of advertisements in various media when the Company has no further performance obligations. Fixed fees for services are recognized upon completion of the earnings process and acceptance by the client. Per diem fees are recognized upon the performance of the Company’s services. In addition, for a limited number of certain service transactions, which require delivery of a number of service acts, the Company uses the proportional performance model, which generally results in revenue being recognized based on the straight-line method.

Fees billed to clients in excess of fees recognized as revenue are classified as Advanced Billings on the Company’s balance sheet.

A small portion of the Company’s contractual arrangements with customers includes performance incentive provisions, which allow the Company to earn additional revenue as a result of its performance relative to both quantitative and qualitative goals. The Company recognizes the incentive portion of revenue under these arrangements when specific quantitative goals are assured, or when the Company’s clients determine performance against qualitative goals has been achieved. In all circumstances, revenue is only recognized when collection is reasonably assured. The Company records revenue net of sales and other taxes due to be collected and remitted to governmental authorities.

Cost of Services Sold.  Cost of services sold do not include depreciation charges for fixed assets.

Interest Expense.  Interest expense primarily consists of the cost of borrowing on the Company’s previously outstanding 6.75% Senior Notes due 2020 (the “6.75% Notes”); the Company’s 6.50% senior unsecured notes due 2024 (the “6.50% Notes”); and the Company’s $325 million senior secured revolving credit agreement due 2021 (the “Credit Agreement”). The Company uses the effective interest method to amortize the deferred financing costs as well as the original issue premium on the previously outstanding 6.75% Notes. The Company also uses the straight-line method to amortize the deferred financing costs on the Credit Agreement. For the years ended December 31, 2016, 2015, and 2014, interest expense included $255, $2,543, and $2,186, respectively, relating to present value adjustments for fixed deferred acquisition consideration payments.

Deferred Taxes.  The Company uses the asset and liability method of accounting for income taxes. Deferred income taxes are provided for the temporary difference between the financial reporting basis and tax basis of the Company’s assets and liabilities. Deferred tax benefits result principally from certain tax carryover benefits and from recording certain expenses in the financial statements that are not currently deductible for tax purposes and from differences between the tax and book basis of assets and liabilities recorded in connection with acquisitions. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. Deferred tax liabilities result principally from deductions recorded for tax purposes in excess of that recorded in the financial statements or income for financial statement purposes in excess of the amount for tax purposes. The effect of changes in tax rates is recognized in the period the rate change is enacted.

During the second quarter of 2017, the Company identified and recorded out-of-period adjustments related to the misapplication of ASC 740 and ASC 850-740 accounting policies as they applied to the calculation of deferred tax liabilities.  The Company has revised prior period information presented on this Amendment No. 1 on Form 10-K/A as follows: (i) for the years ended December 31, 2016, 2015, and 2014, income tax expense has been reduced by $2,108, $1,903, and $2,646, respectively, (ii) basic and diluted net loss attributable to MDC Partners Inc. common shareholders for the years ended December 31, 2016, 2015, and 2014 increased by $0.04 per share, $0.04 per share, and $0.06 per share, respectively, (iii) deferred tax liabilities as of December 31, 2016 and 2015 have been increased by $6,916 and $9,016, respectively, and (iv) accumulated deficit as of December 31, 2013 has been increased by $13,568. The correction had no impact on the Company’s cash flows.

Stock-Based Compensation.  Under the fair value method, compensation cost is measured at fair value at the date of grant and is expensed over the service period, in this case the award’s vesting period. The Company recognized forfeitures as they occur. When awards are exercised, share capital is credited by the sum of the consideration paid together with the related portion previously credited to additional paid-in capital when compensation costs were charged against income or acquisition consideration.

The Company uses its historical volatility derived over the expected term of the award to determine the volatility factor used in determining the fair value of the award.

Stock-based awards that are settled in cash, or may be settled in cash at the option of employees, are recorded as liabilities. The measurement of the liability and compensation cost for these awards is based on the fair value of the award, and is recorded in operating income over the service period, in this case the awards vesting period. Changes in the Company’s payment obligation prior to the settlement date of a stock-based award are recorded as compensation cost in operating income in the period of the change. The final payment amount for such awards is established on the date of the exercise of the award by the employee.

Stock-based awards that are settled in cash or equity at the option of the Company are recorded at fair value on the date of grant and recorded as additional paid-in capital. The fair value measurement of the compensation cost for these awards is based on using the Black-Scholes option pricing-model and is recorded in operating income over the service period, in this case the award's vesting period.

For the years ended December 31, 2016, 2015, and 2014, the Company issued no stock options or similar awards.

It is the Company’s policy for issuing shares upon the exercise of an equity incentive award to verify the amount of shares to be issued, as well as the amount of proceeds to be collected (if any) and to deliver new shares to the exercising party.

The Company has adopted the straight-line attribution method for determining the compensation cost to be recorded during each accounting period. The Company commences recording compensation expense related to awards that are based on performance conditions under the straight-line attribution method when it is probable that such performance conditions will be met. The fair value at the grant date for performance based awards granted in 2016, 2015, and 2014 was $140, $1,741, and $3,026, respectively.

The Company treats benefits paid by shareholders or equity members to employees as a stock-based compensation charge with a corresponding credit to additional paid-in capital.

From time to time, certain acquisitions and step-up transactions include an element of compensation related payments. The Company accounts for those payments as stock-based compensation.

Pension Costs.  Several of the Company’s U.S. and Canadian subsidiaries offer employees access to certain defined contribution pension programs. Under the defined contribution plans, these subsidiaries, in some cases, make annual contributions to participants’ accounts which are subject to vesting. The Company’s contribution expense pursuant to these plans was $10,026, $6,731 and $7,503 for the years ended December 31, 2016, 2015, and 2014, respectively. The Company also has a defined benefit plan. See Note 18.

Income (Loss) per Common Share.  Basic income (loss) per share is based upon the weighted average number of common shares outstanding during each period. “Share capital to be issued” as reflected in the Shareholders’ Equity on the balance sheet are also included if there is no circumstance under which those shares would not be issued. Diluted income (loss) per share is based on the above, in addition, if dilutive, common share equivalents, which include outstanding options, stock appreciation rights, and unvested restricted stock units.

Foreign Currency Translation.  The Company’s financial statements were prepared in accordance with the requirements of the Foreign Currency Translation topic of the FASB ASC. The functional currency of the Company is the Canadian dollar and it has decided to use U.S. dollars as its reporting currency for consolidated reporting purposes. Generally, the Company’s subsidiaries use their local currency as their functional currency. Accordingly, the currency impacts of the translation of the balance sheets of the Company’s non-U.S. dollar based subsidiaries to U.S. dollar statements are included as cumulative translation adjustments in accumulated other comprehensive income. Translation of intercompany debt, which is not intended to be repaid, is included in cumulative translation adjustments. Cumulative translation adjustments are not included in net earnings unless they are actually realized through a sale or upon complete, or substantially complete, liquidation of the Company’s net investment in the foreign operation. Translation of current intercompany balances are included in net earnings. The balance sheets of non-U.S. dollar based subsidiaries are translated at the period end rate. The income statements of non-U.S. dollar based subsidiaries are translated at average exchange rates for the period.

Gains and losses arising from the Company’s foreign currency transactions are reflected in net earnings. Unrealized gains or losses arising on the translation of certain intercompany foreign currency transactions that are of a long-term nature (that is settlement is not planned or anticipated in the future) are included as cumulative translation adjustments in accumulated other comprehensive income.

Derivative Financial Instruments.  The Company follows the Accounting for Derivative Instruments and Hedging Activities topic of the FASB ASC, which establishes accounting and reporting standards requiring that every derivative instrument (including certain derivative instruments embedded in other contracts and debt instruments) be recorded on the balance sheet as either an asset or liability measured at its fair value. The accounting for the change in fair value of the derivative depends on whether the instrument qualifies for and has been designated as a hedging relationship and on the type of hedging relationship. There are three types of hedging relationships: (i) a cash flow hedge, (ii) a fair value hedge, and (iii) a hedge of foreign currency exposure of a net investment in a foreign operation. The designation is based upon the exposure being hedged. Derivatives that are not hedges, or become ineffective hedges, must be adjusted to fair value through earnings.

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Loss per Common Share

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Loss per Common Share

3. Loss per Common Share

The following table sets forth the computation of basic and diluted loss per common share from continuing operations for the years ended December 31:

	2016			2015			2014
Numerator
Numerator for diluted loss per common share – income (loss) from continuing operations	$	(40,621	)	$	(20,119	)	$	6,739
Net income attributable to the noncontrolling interests	(5,218		)	(9,054		)	(6,890		)
Loss attributable to MDC Partners Inc. common shareholders from continuing operations	(45,839		)	(29,173		)	(151		)
Effect of dilutive securities	—			—			—
Numerator for diluted loss per common share – loss attributable to MDC Partners Inc. common shareholders from continuing operations	$	(45,839	)	$	(29,173	)	$	(151	)
Denominator
Denominator for basic loss per common share – weighted average common shares	51,345,807			49,875,282			49,545,350
Effect of dilutive securities:
Dilutive potential common shares	—			—			—
Denominator for diluted loss per common share – adjusted weighted shares and assumed conversions	51,345,807			49,875,282			49,545,350
Basic and Diluted loss per common share from continuing operations	$	(0.89	)	$	(0.58	)	$	—

At December 31, 2016, 2015, and 2014, warrants, options and other rights to purchase 1,391,456, 947,465 and 1,114,681 shares of common stock, respectively, were not included in the computation of diluted loss per common share because doing so would have had an antidilutive effect. Additionally, the 523,321 of restricted stock and restricted stock unit awards which are contingent upon the Company meeting an undefined cumulative three year earnings target and continued employment are also excluded from the computation of diluted loss per common share.

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Acquisitions

12 Months Ended

Dec. 31, 2016

Business Combinations [Abstract]

Acquisitions

4. Acquisitions

Valuations of acquired companies are based on a number of factors, including specialized know-how, reputation, competitive position and service offerings. The Company’s acquisition strategy has been focused on acquiring the expertise of an assembled workforce in order to continue to build upon the core capabilities of its various strategic business platforms to better serve the Company’s clients. The Company’s strategy includes acquiring ownership stakes in well-managed businesses with strong reputations in the industry. The Company’s model of “Perpetual Partnership” often involves acquiring a majority interest rather than a 100% interest and leaving management owners with a significant financial interest in the performance of the acquired entity for a minimum period of time, typically not less than five years. The Company’s acquisition model in this scenario typically provides for (i) an initial payment at the time of closing, (ii) additional contingent purchase price obligations based on the future performance of the acquired entity, and (iii) an option by the Company to purchase (and in some instances a requirement to so purchase) the remaining interest of the acquired entity under a predetermined formula.

Contingent purchase price obligations. The Company’s contingent purchase price obligations are generally payable within a five year period following the acquisition date, and are based on (i) the achievement of specific thresholds of future earnings, and (ii) in certain cases, the growth rate of those earnings. Contingent purchase price obligations are recorded as deferred acquisition consideration on the balance sheet at the acquisition date fair value and adjusted at each reporting period through operating income or net interest expense, depending on the nature of the arrangement. See Note 13 for additional information on deferred acquisition consideration.

Options to purchase. When acquiring less than 100% ownership, the Company may enter into agreements that give the Company an option to purchase, or require the Company to purchase, the incremental ownership interests under certain circumstances. Where the option to purchase the incremental ownership is within the Company’s control, the amounts are recorded as noncontrolling interests in the equity section of the Company’s balance sheet. Where the incremental purchase may be required of the Company, the amounts are recorded as redeemable noncontrolling interests in mezzanine equity at their acquisition date estimated redemption value and adjusted at each reporting period for changes to their estimated redemption value through additional paid-in capital (but not less than their initial redemption value), except for foreign currency translation adjustments. On occasion, the Company may initiate a renegotiation to acquire an incremental ownership interest and the amount of consideration paid may differ materially from the balance sheet amounts. See Note 16 for additional information on redeemable noncontrolling interests.

Employment conditions. From time to time, specifically when the projected success of an acquisition is deemed to be dependent on retention of specific personnel, such acquisition may include deferred payments that are contingent upon employment terms as well as financial performance. The Company accounts for those payments through operating income as stock-based compensation over the required retention period. For the years ended December 31, 2016, 2015 and 2014, stock-based compensation included $10,341, $9,359, and $7,802, respectively, of expense relating to those payments.

Distributions to noncontrolling shareholders. If noncontrolling shareholders have the right to receive distributions based on the profitability of an acquired entity, the amount is recorded as income attributable to noncontrolling interests. However, there are circumstances when the Company acquires a majority interest and the selling shareholders waive their right to receive distributions with respect to their retained interest for a period of time, typically not less than five years.  Under this model, the right to receive such distributions typically begins concurrently with the purchase option period and, therefore, if such option is exercised at the first available date the Company may not record any noncontrolling interest over the entire period from the initial acquisition date through the acquisition date of the remaining interests.

Included in the Company’s consolidated statement of operations for the year ended December 31, 2016 was revenue of $39,569, and net loss of $3,815, related to 2016 acquisitions. The net loss was attributable to an increase in the deferred acquisition payment liability driven by the decrease in the future market performance of the Company’s stock price and the amortization of the intangibles identified in the allocation of the purchase price consideration.

2016 Acquisitions

Effective July 1, 2016, the Company acquired 100% of the equity interests of Forsman & Bodenfors AB (“F&B”), an advertising agency based in Sweden, for an approximate purchase price range of $35,000 to $55,000. The estimated aggregate purchase price at acquisition date of $49,837, which is subject to adjustments, consisted of a closing payment of 1,900,000 MDC Class A subordinate voting shares with an acquisition date fair value of $34,219, plus additional deferred acquisition payments with an estimated present value at acquisition date of $15,618. The amount of additional payments will be calculated based on the financial results of the acquired business for 2015 and 2016 as well as the value of the Company’s shares from July 1, 2016 up to and including the close of business on November 2, 2016. At December 31, 2016, the estimated present value of the additional deferred acquisition payments was $18,857. The additional deferred acquisition payments are payable in 2017 at the Company’s option through the payment of cash or the issuance of additional Class A subordinate voting shares. In the event the Company elects to settle the additional deferred payments through the issuance of Class A subordinate voting shares, such settlement amount will be subject to adjustment based on the value of the Company’s shares determined at the close of business on the final trading day of the seller’s applicable 90 day trading window.

An allocation of excess purchase price consideration of this acquisition to the fair value of the net assets acquired resulted in identifiable intangibles of $36,698, consisting primarily of customer lists, trade names and covenants not to compete, and goodwill of $24,778, including the value of the assembled workforce. The identified assets have a weighted average useful life of approximately 10.8 years and will be amortized in a manner represented by the pattern in which the economic benefits of such assets are expected to be realized. In addition, the Company has recorded $2,275 as the present value of redeemable noncontrolling interests and $5,514 as the present value of noncontrolling interests both relating to the noncontrolling interest of F&B's subsidiaries. None of the intangibles and goodwill are tax deductible and the Company recorded a deferred tax liability of $8,074 related to the intangibles. F&B's results are included in the Global Integrated Agencies reportable segment.

The actual adjustments that the Company will ultimately make in finalizing the allocation of purchase price to fair value of the net assets acquired will depend on a number of factors.

The following unaudited pro forma results of operations of the Company for the years ended December 31, 2016 and 2015 assume that the acquisition of F&B occurred on January 1, 2015. These unaudited pro forma results are not necessarily indicative of either the actual results of operations that would have been achieved had the acquisition of F&B taken place on January 1, 2015, or are they necessarily indicative of future results of operations.

	Year Ended December 31,
	2016			2015
Revenues	$	1,426,770		$	1,398,756
Net loss attributable to MDC Partners Inc.	$	(39,756	)	$	(34,398	)
Loss per common share:
Basic and Diluted
Net loss attributable to MDC Partners Inc. common shareholders	$	(0.76	)	$	(0.66	)

Effective April 1, 2016, the Company acquired the remaining 40% ownership interests of Luntz Global Partners LLC. In 2016, the Company also entered into various non-material transactions in connection with other majority-owned entities. As a result of the foregoing, the Company made total cash closing payments of $1,581, eliminated the contingent deferred acquisition payments of $4,052 and fixed deferred acquisition payments of $467 related to certain initial acquisition of the equity interests, reduced other assets by $428, reduced redeemable noncontrolling interests by $1,005, reduced noncontrolling interests by $19,354, increased accruals and other liabilities by $94, and increased additional paid-in capital by $22,775. Additional deferred payments with an estimated present value at acquisition date of $2,393 that are contingent upon service conditions have been excluded from deferred acquisition consideration and will be expensed as stock-based compensation over the required service period.

2015 Acquisitions

Effective May 1, 2015, the Company acquired a majority of the equity interests of Y Media Labs LLC, such that following the transaction, the Company’s effective ownership was 60%. Effective October 31, 2015, the Company acquired substantially 100% of the assets of Unique Influence, LLC (and certain other affiliated entities). The aggregate purchase price of these acquisitions had an estimated present value at acquisition date of $55,279 and consisted of total closing cash payments of $23,000 and additional deferred acquisition payments that will be based on the future financial results of the underlying businesses from 2015 to 2020 with final payments due in 2022. These additional deferred payments have an estimated present value at acquisition date of $32,279. An allocation of excess purchase price consideration of these acquisitions to the fair value of the net assets acquired resulted in identifiable intangibles of $16,721, consisting primarily of customer lists, trade names and covenants not to compete, and goodwill of $43,654, including the value of the assembled workforce. The identified assets have a weighted average useful life of approximately 6.3 years and will be amortized in a manner represented by the pattern in which the economic benefits of such assets are expected to be realized. In addition, the Company has recorded $1,999 as the present value of redeemable noncontrolling interests. The Company expects intangibles and goodwill of $9,720 to be tax deductible.

In 2015, the Company acquired incremental ownership interests of Sloane & Company LLC, Anomaly Partners LLC, Allison & Partners LLC, Relevent Partners LLC, Kenna Communications LP and 72andSunny Partners LLC. In addition, the Company also entered into various non-material transactions in connection with other majority owned entities.

The aggregate purchase price for these 2015 acquisitions of incremental ownership interests had an estimated present value at transaction date of $200,822 and consisted of total closing cash payments of $37,467 and additional deferred acquisition payments that are both fixed and based on the future financial results of the underlying businesses from 2015 to 2021 with final payments due in 2022. These additional deferred payments had an estimated present value at acquisition date of $163,355. The Company reduced redeemable noncontrolling interests by $149,335 and noncontrolling interests by $8,708. The difference between the purchase price and the noncontrolling interests of $42,780 was recorded in additional paid-in capital.

2014 Acquisitions

During 2014, the Company entered into several acquisitions and various non-material transactions with certain majority owned entities. Effective January 1, 2014, the Company acquired 60% of the equity interests of Luntz Global Partners LLC. Effective February 14, 2014, the Company acquired 65% of the equity interests of Kingsdale Partners LP. On June 3, 2014, the Company acquired a 100% equity interest in The House Worldwide Ltd. On July 31, 2014, Union Advertising Canada LP acquired 100% of the issued and outstanding stock of Trapeze Media Limited (“Trapeze”). Effective August 1, 2014, the Company acquired 65% of the equity interests of Hunter PR LLC. Effective August 18, 2014, the Company acquired a 75% interest in Albion Brand Communication Limited. In addition, in June 2014 and August 2014, the Company (through a subsidiary) entered into other non-material acquisitions.

The aggregate purchase price of these acquisitions had an estimated present value at acquisition date of $151,202 and consisted of total closing cash payments of $67,236, and additional deferred acquisition payments that are based on the financial results of the underlying businesses from 2014 to 2018 with final payments due in 2019. These additional deferred payments had an estimated present value at acquisition date of $83,966. An allocation of excess purchase price consideration of these acquisitions to the fair value of the net assets acquired resulted in identifiable intangibles of $64,733, consisting primarily of customer lists, a technology asset and covenants not to compete, and goodwill of $146,806, including the value of the assembled workforce. The identified assets will be amortized over a five to six year period in a manner represented by the pattern in which the economic benefits of such assets are expected to be realized. In addition, the Company has recorded $50,552 as the present value of noncontrolling interests and $13,327 as the present value of redeemable noncontrolling interests. The Company expects intangibles and goodwill of $149,232 to be tax deductible. In addition the Company recorded other income of $908 representing a gain on the previously held 18% interest in Trapeze.

Noncontrolling Interests

Changes in the Company’s ownership interests in our less than 100% owned subsidiaries during the three years ended December 31, were as follows:

Net Loss Attributable to MDC Partners Inc. and

Transfers (to) from the Noncontrolling Interests

	Year Ended December 31,
	2016			2015			2014
Net loss attributable to MDC Partners Inc.	$	(45,839	)	$	(35,454	)	$	(21,411	)
Transfers (to) from the noncontrolling interests
Increase (decrease) in MDC Partners Inc. paid-in capital for purchase of equity interests in excess of noncontrolling interests and redeemable noncontrolling interests	22,776			(42,780		)	(8,992		)
Net transfers (to) from noncontrolling interests	$	22,776		$	(42,780	)	$	(8,992	)
Change from net loss attributable to MDC Partners Inc. and transfers (to) from noncontrolling interests	$	(23,063	)	$	(78,234	)	$	(30,403	)

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Fixed Assets

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Fixed Assets

5. Fixed Assets  

The following is a summary of the Company’s fixed assets as of December 31:

	2016							2015
	Cost		Accumulated Depreciation			Net Book Value		Cost		Accumulated Depreciation			Net Book Value
Computers, furniture and fixtures	$	91,909	$	(64,030	)	$	27,879	$	87,213	$	(62,901	)	$	24,312
Leasehold improvements	91,601		(41,103		)	50,498		72,898		(33,653		)	39,245
	$	183,510	$	(105,133	)	$	78,377	$	160,111	$	(96,554	)	$	63,557

At December 31, 2016 and 2015, included in fixed assets are assets under capital lease obligations with a cost of $1,967 and $1,959, respectively, and accumulated depreciation of $1,316 and $1,378, respectively. Depreciation expense for the years ended December 31, 2016, 2015, and 2014 was $22,293, $18,871 and $16,462, respectively.

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Accrued and Other Liabilities

12 Months Ended

Dec. 31, 2016

Accrued Liabilities and Other Liabilities [Abstract]

Accrued and Other Liabilities

6. Accruals and Other Liabilities

At December 31, 2016 and 2015, accruals and other liabilities included accrued media of $201,872 and $187,540, respectively; and amounts due to noncontrolling interest holders for their share of profits, which will be distributed within the next twelve months, of $4,154 and $5,473, respectively.

Changes in noncontrolling interest amounts included in accrued and other liabilities for the three years ended December 31, were as follows:

	Noncontrolling Interests
Balance at December 31, 2013	$	5,210
Income attributable to noncontrolling interests	6,890
Distributions made	(6,523		)
Other(1)	437
Balance at December 31, 2014	$	6,014
Income attributable to noncontrolling interests	9,054
Distributions made	(9,503		)
Other(1)	(92		)
Balance at December 31, 2015	$	5,473
Income attributable to noncontrolling interests	5,218
Distributions made	(7,772		)
Other(1)	1,235
Balance at December 31, 2016	$	4,154

(1) Other consists primarily of business acquisitions, sale of a business, step-up transactions, and cumulative translation adjustments.

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Financial Instruments

12 Months Ended

Dec. 31, 2016

Investments, All Other Investments [Abstract]

Financial Instruments

7. Financial Instruments

Financial assets, which include cash and cash equivalents and accounts receivable, have carrying values which approximate fair value due to the short-term nature of these assets. Financial liabilities with carrying values approximating fair value due to short-term maturities include accounts payable. Deferred acquisition consideration is recorded at fair value. The revolving credit agreement is a variable rate debt, the carrying value of which approximates fair value. The Company’s notes are a fixed rate debt instrument recorded at the carrying value. See Note 13 for the fair value. The fair value of financial commitments, guarantees and letters of credit, are based on the stated value of the underlying instruments. Guarantees have been issued in conjunction with the disposition of businesses in 2001 and 2003 and letters of credit have been issued in the normal course of business.

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Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

8. Goodwill and Intangible Assets

As of December 31, the gross and net amounts of acquired intangible assets were as follows:

Goodwill	Global Integrated Agencies			Domestic Creative Agencies			Specialist Communications			Media Services		All Other			Total
Balance at December 31, 2014	$	370,094		$	37,117		$	98,497		$	136,033	$	209,632		$	851,373
Acquired goodwill	—			—			—			6,253		37,401			43,654
Acquisition purchase price adjustments	(998		)	133			(879		)	—		(684		)	(2,428		)
Foreign currency translation	(4,937		)	(579		)	(40		)	—		(16,742		)	(22,298		)
Balance at December 31, 2015	$	364,159		$	36,671		$	97,578		$	142,286	$	229,607		$	870,301
Acquired goodwill	24,778			—			—			—		—			24,778
Disposition	—			—			—			—		(764		)	(764		)
Impairment loss recognized	—			—			(18,893		)	—		(29,631		)	(48,524		)
Transfer of goodwill between segments (1)	(34,400		)	—			—			34,400		—			—
Foreign currency translation	(3,821		)	91			6			—		2,692			(1,032		)
Balance at December 31, 2016	$	350,716		$	36,762		$	78,691		$	176,686	$	201,904		$	844,759

⁽¹⁾ During the year ended December 31, 2016, the Company transferred a component of one reporting unit to another reporting unit. As a result, based on the relative fair value, we transferred $34.4 million of goodwill from the Global Integrated Agencies reportable segment to Media Services, which represented the portion of the goodwill associated with the component.  An interim impairment analysis was performed both before and after the transfer, noting no impairment indicators were present.

	For the Year Ended December 31,
Intangible Assets	2016			2015
Trademarks (indefinite life)	$	17,780		$	17,780
Customer relationships – gross	$	121,408		$	135,919
Less accumulated amortization	(80,432		)	(97,604		)
Customer relationships – net	$	40,976		$	38,315
Other intangibles – gross	$	43,656		$	33,638
Less accumulated amortization	(17,341		)	(17,351		)
Other intangibles – net	$	26,315		$	16,287
Total intangible assets	$	182,844		$	187,337
Less accumulated amortization	(97,773		)	(114,955		)
Total intangible assets – net	$	85,071		$	72,382

The results of the annual goodwill impairment test performed as of October 1, 2015, indicated fair values in excess of carrying amounts for each of the Company’s reporting units. The Company noted no significant events or conditions during the first and second quarter of 2016 that would have affected the conclusions from the annual assessment.

During the third quarter of 2016, the Company changed its operating segments, as a result of the management structure change as discussed in Note 14, which resulted in a corresponding change to the Company’s reporting units. The Company performed interim goodwill testing on one of its experiential reporting units and one non-material reporting unit, resulting in a partial impairment of goodwill of $27,893 and $1,738 relating to the experiential reporting unit and non-material reporting unit, respectively. Additionally, as a result of the annual goodwill impairment test performed as of October 1, 2016, the Company recognized a partial impairment of goodwill of $18,893 relating to one of the Company’s strategic communications reporting units. See Note 2 for further information.

The total accumulated goodwill impairment charges are $95,407 through December 31, 2016. During the year for 2016, the Company wrote off goodwill of $764 related to the sale of its ownership interests in Bryan Mills to the noncontrolling shareholders. This write off is included in other income (expense).

The weighted average amortization periods for customer relationships are six years and other intangible assets are eight years. In total, the weighted average amortization period is seven years. Amortization expense related to amortizable intangible assets for the years ended December 31, 2016, 2015, and 2014 was $21,726, $30,024, and $29,749, respectively.

The estimated amortization expense for the five succeeding years is as follows:

Year	Amortization
2017	$	16,677
2018	$	11,525
2019	$	7,346
2020	$	4,999
2021	$	3,411

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Income Taxes

12 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

Income Taxes

9. Income Taxes

The components of the Company’s income (loss) from continuing operations before income taxes and equity in earnings of non-consolidated affiliates by taxing jurisdiction for the years ended December 31, were:

	2016			2015			2014
Income (Loss):
U.S.	$	(16,661	)	$	23,180		$	46,728
Non-U.S.	(33,055		)	(40,596		)	(31,619		)
	$	(49,716	)	$	(17,416	)	$	15,109

The provision (benefit) for income taxes by taxing jurisdiction for the years ended December 31, were:

	2016			2015			2014
Current tax provision
U.S. federal	$	—		$	—		$	—
U.S. state and local	(1,520		)	1,375			907
Non-U.S.	2,154			2,465			552
	634			3,840			1,459
Deferred tax provision (benefit):
U.S. federal	5,785			5,359			11,173
U.S. state and local	(3,550		)	2,877			1,554
Non-U.S.	(12,273		)	(8,315		)	(4,410		)
	(10,038		)	(79		)	8,317
Income tax provision (benefit)	$	(9,404	)	$	3,761		$	9,776

A reconciliation of income tax expense (benefit) using the statutory Canadian federal and provincial income tax rate compared with actual income tax expense for the years ended December 31, is as follows:

	2016			2015			2014
Income (loss) from continuing operations before income taxes, equity in non-consolidated affiliates and noncontrolling interest	$	(49,716	)	$	(17,416	)	$	15,109
Statutory income tax rate	26.5		%	26.5		%	26.5		%
Tax expense (benefit) using statutory income tax rate	(13,175		)	(4,615		)	4,004
State and foreign taxes	(94		)	3,524			1,459
Non-deductible stock-based compensation	1,123			665			1,982
Other non-deductible expense	1,848			163			3,075
Change to valuation allowance on items affecting taxable income	6,605			3,565			(643		)
Effect of the difference in federal and statutory rates	(4,579		)	1,906			2,222
Noncontrolling interests	(1,287		)	(2,399		)	(1,826		)
Other, net	155			952			(497		)
Income tax expense (benefit)	$	(9,404	)	$	3,761		$	9,776
Effective income tax rate	18.9		%	(21.6		)%	64.7		%

The 2016 effective income tax rate was lower than the statutory rate due primarily to non-deductible stock-based compensation of $1,848, an increase in the valuation allowance of $6,605, and the effect of the difference in the U.S. and foreign federal rates and the Canadian statutory rate of $4,579. All of this resulted in a lower tax benefit.

The 2015 effective income tax rate was higher than the statutory rate due primarily to non-deductible stock-based compensation of $665 and an increase in the valuation allowance of $3,565, and the effect of the difference in the U.S. and foreign federal rates and the Canadian statutory rate of $1,906. All of this resulted in a tax expense verses a tax benefit.

The 2014 effective income tax rate was higher than the statutory rate due primarily to non-deductible stock-based compensation of $1,982, an decrease in the valuation allowance of $643, and the effect of the difference in the U.S. and foreign federal rates and the Canadian statutory rate of $2,222.

Income taxes receivable were $1,506 and $615 at December 31, 2016 and 2015, respectively, and were included in other current assets on the balance sheet. Income taxes payable were $4,547 and $7,019 at December 31, 2016 and 2015, respectively, and were included in accrued and other liabilities on the balance sheet. It is the Company’s policy to classify interest and penalties arising in connection with the under payment of income taxes as a component of income tax expense.

The tax effects of significant temporary differences representing deferred tax assets and liabilities at December 31, were as follows:

	2016			2015
Deferred tax assets:
Capital assets and other	$	6,758		$	7,334
Net operating loss carry forwards	44,305			39,454
Interest deductions	12,146			12,266
Refinancing charge	7,413			144
Goodwill and intangibles	179,029			178,835
Stock compensation	2,581			3,033
Pension plan	5,095			3,770
Unrealized foreign exchange	15,237			15,548
Capital loss carry forwards	10,957			10,630
Accounting reserves	7,138			6,701
Gross deferred tax asset	290,659			277,715
Less: valuation allowance	(248,866		)	(247,967		)
Net deferred tax assets	41,793			29,748
Deferred tax liabilities:
Deferred finance charges	(333		)	(323		)
Capital assets and other	(388		)	(797		)
Goodwill amortization	(109,638		)	(100,743		)
Total deferred tax liabilities	(110,359		)	(101,863		)
Net deferred tax asset (liability)	$	(68,566	)	$	(72,115	)
Disclosed as:
Deferred tax assets	$	41,793		$	29,748
Deferred tax liabilities	(110,359		)	(101,863		)
	$	(68,566	)	$	(72,115	)

The Company has U.S. federal net operating loss carry forwards of $21,339 and non-U.S. net operating loss carry forwards of $70,517. These carry forwards expire in years 2016 through 2031. The Company also has total indefinite loss carry forwards of $118,413. These indefinite loss carry forwards consist of $35,723 relating to the U.S. and $82,691 which are related to capital losses from the Canadian operations. In addition, the Company has net operating loss carry forwards for various state taxing jurisdictions of approximately $188,367.

The Company records a valuation allowance against deferred income tax assets when management believes it is more likely than not that some portion or all of the deferred income tax assets will not be realized. Management considers factors such as the reversal of deferred income tax liabilities, projected future taxable income, the character of the income tax asset, tax planning strategies, changes in tax laws and other factors. A change to these factors could impact the estimated valuation allowance and income tax expense.

The valuation allowance has been recorded to reduce our deferred tax asset to an amount that is more likely than not to be realized, and is based upon the uncertainty of the realization of certain U.S., non-U.S. and state deferred tax assets. The increase in the Company’s valuation allowance charged to the statement of operations for each of the years ended December 31, 2016, 2015 and was $6,605, and $3,565, respectively. The Company's valuation allowance decreased $643 in 2014. In addition, a benefit of $1,112 has been recorded in accumulated other comprehensive loss relating to the defined pension plan for the years ended December 31, 2014. There was no benefit or expense related to the defined pension plan recorded in 2015 and 2016.

Deferred taxes are not provided for temporary differences representing earnings of subsidiaries that are intended to be permanently reinvested. The potential deferred tax liability associated with these undistributed earnings is not material.

During the second quarter of 2017, the Company identified and recorded out-of-period adjustments related to the misapplication of ASC 740 and ASC 850-740 accounting policies as they applied to the calculation of deferred tax liabilities. See Note 2 for details.

As of December 31, 2016 and 2015, the Company recorded a liability for unrecognized tax benefits as well as applicable penalties and interest in the amount of $1,543 and $4,200. As of December 31, 2016 and 2015, accrued penalties and interest included in unrecognized tax benefits were approximately $78 and $595. The Company identified an uncertainty relating to the future tax deductibility of certain intercompany fees. To the extent that such future benefit will be established, the resolution of this position will have no effect with respect to the financial statements. If these unrecognized tax benefits were to be recognized, it would affect the Company’s effective tax rate.

Changes in the Company’s reserve is as follows:
Balance at December 31, 2013	$	3,073
Charges to income tax expense	—
Balance at December 31, 2014	3,073
Charges to income tax expense	960
Settlement of uncertainty	(428		)
Balance at December 31, 2015	3,605
Charges to income tax expense	(1,261		)
Settlement of uncertainty	(879		)
Balance at December 31, 2016	$	1,465

The Company does not expect its unrecognized tax benefits to change significantly over the next 12 months.

The Company has completed U.S. federal tax audits through 2013 and has completed a non-U.S. tax audit through 2009.

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Discontinued Operations

12 Months Ended

Dec. 31, 2016

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

10. Discontinued Operations

In the fourth quarter of 2014, the Company made the decision to strategically sell the net assets of Accent. Effective May 31, 2015, the Company completed the sale of Accent for an aggregate selling price of $17,102, net of transaction expenses. There were no discontinued operations for the year ended December 31, 2016.

Included in discontinued operations in the Company’s consolidated statements of operations for the years ended December 31, 2015 and 2014 were the following:

	Years Ended December 31,
		2015			2014
Revenue		$	27,025		$	70,041
Operating loss		(322		)	(4,704		)
Other expense		(752		)	(458		)
Loss on disposal		(5,207		)	(16,098		)
Net loss from discontinued operations		$	(6,281	)	$	(21,260	)

For the year ended December 31, 2014, the loss on disposal included a goodwill write off of $15,564.

At December 31, 2016 and 2015, the Company had no assets held for sale.

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Debt

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Debt

11. Debt

As of December 31, the Company’s indebtedness was comprised as follows:

	2016			2015
Revolving credit facility	$	54,425		$	—
6.50% Notes due 2024	900,000			—
6.75% Notes due 2020	—			735,000
Original issue premium	—			5,838
Debt issuance costs	(18,420		)	(12,625		)
	936,005			728,213
Obligations under capital leases	431			670
	936,436			728,883
Less:
Current portion	228			470
	$	936,208		$	728,413

Interest expense related to long-term debt for the years ended December 31, 2016, 2015, and 2014 was $56,468, $53,090 and $50,832, respectively. For the year ended December 31, 2016, the Company recorded a charge for the loss on redemption of the 6.75% Notes of $33,298, which included accrued interest, related premiums, fees and expenses, write offs of unamortized original issue premium, and unamortized debt issuance costs. For the years ended December 31, 2016, 2015, and 2014, interest expense included income of $312, $1,178, $975, related to the amortization of the original issue premium. For the years ended December 31, 2016, 2015, and 2014, interest expense included $255, $2,543 and $2,186, respectively, of present value adjustments for fixed deferred acquisition payments.

The amortization of deferred finance costs included in interest expense were $3,022, $3,448 and $3,222 for the years ended December 31, 2016, 2015, and 2014, respectively.

6.50% Senior Notes

On March 23, 2016, MDC entered into an indenture (the “Indenture”) among MDC, its existing and future restricted subsidiaries that guarantee, or are co-borrowers under or grant liens to secure, the Credit Agreement, as guarantors (the “Guarantors”) and The Bank of New York Mellon, as trustee, relating to the issuance by MDC of $900,000 aggregate principal amount of the 6.50% Notes. The 6.50% Notes were sold in a private placement in reliance on exceptions from registration under the Securities Act of 1933. The 6.50% Notes bear interest at a rate of 6.50% per annum, accruing from March 23, 2016. Interest is payable semiannually in arrears on May 1 and November 1 of each year, beginning November 1, 2016. The 6.50% Notes mature on May 1, 2024, unless earlier redeemed or repurchased. The Company received net proceeds from the offering of the 6.50% Notes equal to approximately $880,000. The Company used the net proceeds to redeem all of its existing 6.75% Notes, together with accrued interest, related premiums, fees and expenses and recorded a charge for the loss on redemption of such notes of $33,298, including write offs of unamortized original issue premium and debt issuance costs. Remaining proceeds were used for general corporate purposes, including funding of deferred acquisition consideration.

The 6.50% Notes are guaranteed on a senior unsecured basis by all of MDC’s existing and future restricted subsidiaries that guarantee, or are co-borrowers under or grant liens to secure, the Credit Agreement. The 6.50% Notes are unsecured and unsubordinated obligations of MDC and rank (i) equally in right of payment with all of MDC’s or any Guarantor’s existing and future senior indebtedness, (ii) senior in right of payment to MDC’s or any Guarantor’s existing and future subordinated indebtedness, (iii) effectively subordinated to all of MDC’s or any Guarantor’s existing and future secured indebtedness to the extent of the collateral securing such indebtedness, including the Credit Agreement, and (iv) structurally subordinated to all existing and future liabilities of MDC’s subsidiaries that are not Guarantors.

MDC may, at its option, redeem the 6.50% Notes in whole at any time or in part from time to time, on and after May 1, 2019 (i) at a redemption price of 104.875% of the principal amount thereof if redeemed during the twelve-month period beginning on May 1, 2019, (ii) at a redemption price of 103.250% of the principal amount thereof if redeemed during the twelve-month period beginning on May 1, 2020, (iii) at a redemption price of 101.625% of the principal amount thereof if redeemed during the twelve-month period beginning on May 1, 2021, and (iv) at a redemption price of 100% of the principal amount thereof if redeemed on May 1, 2022 and thereafter.

Prior to May 1, 2019, MDC may, at its option, redeem some or all of the 6.50% Notes at a price equal to 100% of the principal amount of the 6.50% Notes plus a “make whole” premium and accrued and unpaid interest. MDC may also redeem, at its option, prior to May 1, 2019, up to 35% of the 6.50% Notes with the proceeds from one or more equity offerings at a redemption price of 106.50% of the principal amount thereof.

If MDC experiences certain kinds of changes of control (as defined in the Indenture), holders of the 6.50% Notes may require MDC to repurchase any 6.50% Notes held by them at a price equal to 101% of the principal amount of the 6.50% Notes plus accrued and unpaid interest. In addition, if MDC sells assets under certain circumstances, it must apply the proceeds from such sale and offer to repurchase the 6.50% Notes at a price equal to 100% of the principal amount plus accrued and unpaid interest.

The Indenture includes covenants that, among other things, restrict MDC’s ability and the ability of its restricted subsidiaries (as defined in the Indenture) to incur or guarantee additional indebtedness; pay dividends on or redeem or repurchase the capital stock of MDC; make certain types of investments; create restrictions on the payment of dividends or other amounts from MDC’s restricted subsidiaries; sell assets; enter into transactions with affiliates; create liens; enter into sale and leaseback transactions; and consolidate or merge with or into, or sell substantially all of MDC’s assets to, another person. These covenants are subject to a number of important limitations and exceptions. The 6.50% Notes are also subject to customary events of default, including a cross-payment default and cross-acceleration provision.

Redemption of 6.75% Senior Notes

On March 23, 2016, the Company redeemed the 6.75% Notes in whole at a redemption price of 103.375% of the principal amount thereof with the proceeds from the issuance of the 6.50% Notes.

Credit Agreement

On March 20, 2013, MDC, Maxxcom Inc. (a subsidiary of MDC) and each of their subsidiaries party thereto entered into an amended and restated, $225 million senior secured revolving credit agreement due 2018 (the “Credit Agreement”) with Wells Fargo Capital Finance, LLC, as agent, and the lenders from time to time party thereto. Advances under the Credit Agreement are to be used for working capital and general corporate purposes, in each case pursuant to the terms of the Credit Agreement. Capitalized terms used in this section and not otherwise defined have the meanings set forth in the Credit Agreement.

Effective October 23, 2014, MDC and its subsidiaries entered into an amendment to its Credit Agreement. The amendment: (i) expanded the commitments under the facility by $100 million, from $225 million to $325 million; (ii) extended the date by an additional eighteen months to September 30, 2019; (iii) reduced the base borrowing interest rate by 25 basis points (the applicable margin for borrowing is 1.00% in the case of Base Rate Loans and 1.75% in the case of LIBOR Rate Loans) ; and (iv) modified certain covenants to provide the Company with increased flexibility to fund its continued growth and other general corporate purposes.

Effective May 3, 2016, MDC and its subsidiaries entered into an additional amendment to its Credit Agreement. The amendment: (i) extends the date by an additional nineteen months to May 3, 2021; (ii) reduces the base borrowing interest rate by 25 basis points; (iii) provides the Company the ability to borrow in foreign currencies; and (iv) certain other modifications to provide additional flexibility in operating the Company’s business.

Advances under the Credit Agreement bear interest as follows: (a)(i) LIBOR Rate Loans bear interest at the LIBOR Rate and (ii) Base Rate Loans bear interest at the Base Rate, plus (b) an applicable margin. The initial applicable margin for borrowing is 1.00% in the case of Base Rate Loans and 1.75% in the case of LIBOR Rate Loans. In addition to paying interest on outstanding principal under the Credit Agreement, MDC is required to pay an unused revolver fee to lenders under the Credit Agreement in respect of unused commitments thereunder.

The Company is currently in compliance with all of the terms and conditions of its Credit Agreement, and management believes, based on its current financial projections, that the Company will be in compliance with the covenants over the next twelve months. At December 31, 2016, there were $54,425 of borrowings under the Credit Agreement.

At December 31, 2016, the Company had issued $4,360 of undrawn letters of credit.

At December 31, 2016 and 2015, accounts payable included $80,193 and $73,558, respectively, of outstanding checks.

Future Principal Repayments

Future principal repayments, including capital lease obligations, for the years ended December 31, and in aggregate, are as follows:

Period	Amount
2016	$	228
2017	91
2018	86
2019	22
2020	54,429
2021 and thereafter	900,000
	$	954,856

Capital Leases

Future minimum capital lease payments for the years ended December 31 and in aggregate, are as follows:

Period	Amount
2016	$	248
2017	102
2018	93
2019	23
2020	5
2021 and thereafter	—
	471
Less: imputed interest	(40		)
	431
Less: current portion	(228		)
	$	203

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Share Capital

12 Months Ended

Dec. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share Capital

12. Share Capital

The authorized share capital of the Company is as follows:

(a) Authorized Share Capital

Class A Shares

An unlimited number of subordinate voting shares, carrying one vote each, entitled to dividends equal to or greater than Class B shares, convertible at the option of the holder into one Class B share for each Class A share after the occurrence of certain events related to an offer to purchase all Class B shares.

Class B Shares

An unlimited number, carrying 20 votes each, convertible at any time at the option of the holder into one Class A share for each Class B share.

Preferred A Shares

An unlimited number, non-voting, issuable in series.

(b) Employee Stock Incentive Plan

On May 26, 2005, the Company’s shareholders approved the Company’s 2005 Stock Incentive Plan (the “2005 Incentive Plan”). The 2005 Incentive Plan authorizes the issuance of awards to employees, officers, directors and consultants of the Company with respect to 3,000,000 shares of MDC Partners’ Class A Subordinate Voting Shares or any other security into which such shares shall be exchanged. On June 1, 2007 and on June 2, 2009, the Company’s shareholders approved a total additional authorized Class A Shares of 3,750,000 to be added to the 2005 Incentive Plan for a total of 6,750,000 authorized Class A Shares. In addition, the plan was amended to allow shares under this plan to be used to satisfy share obligations under the Stock Appreciation Rights Plan (the “SARS” Plan”). On May 30, 2008, the Company’s shareholders approved the 2008 Key Partner Incentive Plan, which provides for the issuance of 900,000 Class A Shares. On June 1, 2011, the Company’s shareholders approved the 2011 Stock Incentive Plan, which provides for the issuance of up to 3,000,000 Class A Shares. In June 2013, the Company's shareholders approved an amendment to the SARS Plan to permit the Company to issue shares authorized under the SARS Plan to satisfy the grant and vesting awards under the 2011 Stock Incentive Plan. On June 1, 2016, the Company's shareholders approved the 2016 Stock Incentive Plan, which provides for the issuance of up to 1,500,000 Class A shares.

The following table summarizes information about time based and financial performance-based restricted stock and restricted stock unit awards granted under the 2005 Incentive Plan, 2008 Key Partner Incentive Plan, 2011 Stock Incentive Plan and 2016 Stock Incentive Plan:

	Performance Based Awards				Time Based Awards
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Balance at December 31, 2013	462,666		$	9.79	913,788		$	12.54
Granted	120,578		25.09		293,705		21.99
Vested	(497,214	)	9.62		(264,478	)	10.88
Forfeited	—		—		(26,874	)	11.52
Balance at December 31, 2014	86,030		$	23.14	916,141		$	16.36
Granted	80,000		21.76		191,155		20.42
Vested	(68,067	)	25.21		(297,794	)	12.35
Forfeited	—		—		(35,000	)	21.69
Balance at December 31, 2015	97,963		$	19.61	774,502		$	18.71
Granted	10,000		14.00		392,500		12.53
Vested	(17,963	)	10.02		(380,367	)	16.02
Forfeited	—		—		(46,000	)	20.39
Balance at December 31, 2016	90,000		$	20.90	740,635		$	16.71

The total fair value of restricted stock and restricted stock unit awards, which vested during the years ended December 31, 2016, 2015 and 2014 was $6,272, $5,394 and $7,659, respectively. In connection with the vesting of these awards, the Company included in the taxable loss the amounts of $5,429, $4,678 and $11,874 in 2016, 2015 and 2014, respectively. At December 31, 2016, the weighted average remaining contractual life for performance based awards was 1.87 years and for time based awards was 1.65 years. At December 31, 2016, the fair value of all restricted stock and restricted stock unit awards was $5,441. The term of these awards is three years with vesting up to three years. At December 31, 2016, the unrecognized compensation expense for these awards was $7,105 and will be recognized through 2019. At December 31, 2016, there were 1,934,861 awards available to grant under all equity plans.

In addition, the Company awarded restricted stock and restricted stock unit awards of which 523,321 awarded shares were outstanding as of December 31, 2016. The vesting of these awards are contingent upon the Company meeting a cumulative three year earnings target and continued employment through the vesting date. Once the Company defines the earnings target, the grant date is established and the Company will record the compensation expense over the vesting period.

Prior to adoption of the 2005 Incentive Plan, the Company’s Prior 2003 Plan provided for grants of up to 2,836,179 options to employees, officers, directors and consultants of the Company. All the options granted were for a term of five years from the date of the grant and vest 20% on the date of grant and a further 20% on each anniversary date. In addition, the Company granted 802,440 options, on the privatization of Maxxcom, with a term of no more than 10 years from initial date of grant by Maxxcom and vest 20% in each of the first two years with the balance vesting on the third anniversary of the initial grant.

Information related to share option transactions grant under all plans over the past three years is summarized as follows:

	Options Outstanding			Options Exercisable			Non Vested Options
	Number Outstanding	Weighted Average Price per Share		Number Outstanding	Weighted Average Price per Share
Balance at December 31, 2013	112,500	$	6.03	112,500	$	6.03	—
Vested	—	—					—
Granted	—	—					—
Exercised	—	—					—
Expired and cancelled	—	—					—
Balance at December 31, 2014	112,500	$	5.70	112,500	$	5.70	—
Vested	—	—					—
Granted	—	—					—
Exercised	37,500	4.72					—
Expired and cancelled	—	—					—
Balance at December 31, 2015	75,000	$	5.28	75,000	$	5.28	—
Vested	—	—					—
Granted	—	—					—
Exercised	37,500	5.97					—
Expired and cancelled	—	—					—
Balance at December 31, 2016	37,500	$	5.83	37,500	$	5.83	—

At December 31, 2016, the intrinsic value of vested options and the intrinsic value of all options was $27. For options exercised during 2016, 2015 and 2014, the Company received cash proceeds of nil, $224 and nil, respectively. The Company did not receive any windfall tax benefits. The intrinsic value of options exercised during 2016, 2015 and 2014 was $471, $471 and nil, respectively. At December 31, 2016, the weighted average remaining contractual life of all outstanding options was 0.5 years and for all vested options was 0.5 years. At December 31, 2016, the unrecognized compensation expense of all options was nil.

Share options outstanding as of December 31, 2016 are summarized as follows:

	Options Outstanding				Options Exercisable
Exercise Price	Outstanding Number	Weighted Average Contractual Life	Weighted Average Price per Share		Exercisable Number	Weighted Average Price per Share		Weighted Average Contractual Life
$5.83	37,500	0.50	$	5.83	37,500	$	5.83	0.50

The Company has reserved a total of 2,753,496 Class A shares in order to meet its obligations under various conversion rights, warrants and employee share related plans. At December 31, 2016 there were 781,135 shares available for future option and similar grants.

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Fair Value Measurements

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurements

13. Fair Value Measurements

 Authoritative guidance for fair value establishes a framework for measuring fair value. A fair value measurement assumes a transaction to sell an asset or transfer a liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability.

 In order to increase consistency and comparability in fair value measurements, the guidance establishes a hierarchy for observable and unobservable inputs used to measure fair value into three broad levels, which are described below: 

• Level 1 - Quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities. The fair value hierarchy gives the highest priority to Level 1 inputs.

• Level 2 - Observable prices that are based on inputs not quoted on active markets, but corroborated by market data.

• Level 3 - Unobservable inputs are used when little or no market data is available. The fair value hierarchy gives the lowest priority to Level 3 inputs.

In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible as well as considers counterparty credit risk in its assessment of fair value.

On a nonrecurring basis, the Company uses fair value measures when analyzing asset impairment. Long-lived assets and certain identifiable intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If it is determined such indicators are present and the review indicates that the assets will not be fully recoverable, based on undiscounted estimated cash flows over the remaining amortization periods, their carrying values are reduced to estimated fair value. Measurements based on undiscounted cash flows are considered to be Level 3 inputs. During the fourth quarter of each year, the Company evaluates goodwill and indefinite-lived intangibles for impairment at the reporting unit level. For each acquisition, the Company performed a detailed review to identify intangible assets and a valuation is performed for all such identified assets. The Company used several market participant measurements to determine estimated value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies. The amounts allocated to assets acquired and liabilities assumed in the acquisitions were determined using level three inputs. Fair value for property and equipment was based on other observable transactions for similar property and equipment. Accounts receivable represents the best estimate of balances that will ultimately be collected, which is based in part on allowance for doubtful accounts reserve criteria and an evaluation of the specific receivable balances.

Financial Liabilities Measured at Fair Value on a Recurring Basis

The following tables present certain information for our financial assets that is measured at fair value on a recurring basis at December 31:

	Level 1 2016		Level 1 2015
	Carrying Amount	Fair Value	Carrying Amount	Fair Value
Liabilities:
6.50% Senior Notes due 2024	900,000	812,250	—	—
6.75% Senior Notes due 2020	—	—	740,838	765,319

Our long-term debt includes fixed rate debt. The fair value of this instrument is based on quoted market prices.

The following table presents changes in deferred acquisition consideration for the years ended December 31:

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	2016			2015
Beginning balance of contingent payments	$	306,734		$	172,227
Payments (1)	(105,169		)	(77,301		)
Additions (2)	16,132			174,530
Redemption value adjustments (3)	13,930			41,636
Other (4)	(6,412		)	—
Foreign translation adjustment	(461		)	(4,358		)
Ending balance of contingent payments	$	224,754		$	306,734

(1) For the year ended December 31, 2016, payments include $10,458 of deferred acquisition consideration settled through the issuance of 691,559 MDC Class A subordinate voting shares in lieu of cash.

(2) Additions are the initial estimated deferred acquisition payments of new acquisitions and step-up transactions completed within that fiscal period.

(3) Redemption value adjustments are fair value changes from the Company’s initial estimates of deferred acquisition payments, including the accretion of present value and stock-based compensation charges relating to acquisition payments that are tied to continued employment.

(4) Other is comprised of (i) $2,360 transfered to shares to be issued related to 100,000 MDC Class A subordinate voting shares to be issued contingent on specific thresholds of future earnings that management expects to be attained; and, (ii) $4,052 of contingent payments eliminated through the acquisition of incremental ownership interests. See Note 4.

In addition to the above amounts, there are fixed payments of $4,810 and $40,370 for total deferred acquisition consideration of $229,564 and $347,104, which reconciles to the consolidated balance sheets at December 31, 2016 and 2015, respectively.

The Company includes the payments of all deferred acquisition consideration in financing activities in the Company’s consolidated statement of cash flows, as the Company believes these payments to be seller-related financing activities, which is the predominant source of cash flows. The FASB recently issued new guidance regarding the classification of cash flows for contingent consideration that is effective January 1, 2018. See Note 17 for further information.

Level 3 payments relate to payments made for deferred acquisition consideration. Level 3 grants relate to contingent purchase price obligations related to acquisitions and are recorded on the balance sheet at the acquisition date fair value. The estimated liability is determined in accordance with various contractual valuation formulas that may be dependent on future events, such as the growth rate of the earnings of the relevant subsidiary during the contractual period and, in some cases, the currency exchange rate as of the date of payment. Level 3 redemption value adjustments relate to the remeasurement and change in these various contractual valuation formulas as well as adjustments of present value.

 At December 31, 2016 and 2015, the carrying amount of the Company’s financial instruments, including cash and cash equivalents, accounts receivable and accounts payable, approximated fair value because of their short-term maturity. The Company does not disclose the fair value for equity method investments or investments held at cost as it is not practical to estimate fair value since there is no readily available market data.

Non-financial Assets and Liabilities that are Measured at Fair Value on a Nonrecurring Basis

On a nonrecurring basis, the Company uses fair value measures when analyzing asset impairment. Long-lived assets and certain identifiable intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If it is determined such indicators are present and the review indicates that the assets will not be fully recoverable, based on undiscounted estimated cash flows over the remaining amortization periods, their carrying values are reduced to estimated fair value. Measurements based on undiscounted cash flows are considered to be Level 3 inputs. During the fourth quarter of each year, the Company evaluates goodwill and indefinite-lived intangibles for impairment at the reporting unit level. For each acquisition, the Company performed a detailed review to identify intangible assets and a valuation is performed for all such identified assets. The Company used several market participant measurements to determine estimated value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies. The amounts allocated to assets acquired and liabilities assumed in the acquisitions were determined using Level 3 inputs. Fair value for property and equipment was based on other observable transactions for similar property and equipment. Accounts receivable represents the best estimate of balances that will ultimately be collected, which is based in part on allowance for doubtful accounts reserve criteria and an evaluation of the specific receivable balances.

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Segment Information

12 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

Segment Information

14. Segment Information

The Company determines an operating segment if a component (i) engages in business activities from which it earns revenues and incurs expenses, (ii) has discrete financial information, and is (iii) regularly reviewed by the Chief Operating Decision Maker (“CODM”) to make decisions regarding resource allocation for the segment and assess its performance. During June 2016, the Company entered into a Separation and Release Agreement with its former Chief Operating Officer in connection with a limited restructuring of the Company’s corporate department. This change to the Company’s management structure was designed to provide the CODM greater visibility into the operating performance of individual Partner Firms and resulted in a corresponding change in the level at which the CODM reviews the operating results of such Partner Firms. As a result, in the third quarter of 2016, the Company concluded that each Partner Firm represents an operating segment. The Company then determined to aggregate its Partner Firms to report in one reportable segment along with an “All Other” category.

Based in part on feedback from the SEC, the Company performed a comprehensive review of its reportable segments to determine if aggregation of its operating segments is consistent with the principles detailed in ASC 280. Based on this review, it was determined that the Company misapplied ASC 280 in its identification of reportable segments following the change in the Company’s management structure. The Company incorrectly concluded that there was one reportable segment since the third quarter of 2016. This misapplication of the standard had no impact on the Company’s consolidated statements of operations, balance sheets, or cash flows. Based on the comprehensive review, the Company reassessed the aggregation of its operating segments, identified four new reportable segments and revised the composition of the “All Other” category. This determination was based upon a quantitative analysis of the expected and reported average long-term profitability for each Partner Firm, together with an assessment of the qualitative characteristics set forth in FASB ASC 280-10-50.

The four reportable segments that meet the appropriate aggregation criteria are as follows: “Global Integrated Agencies”; “Domestic Creative Agencies”; “Specialist Communications”; and “Media Services". In addition, the Company combines and discloses those Partner Firms that do not meet the aggregation criteria as “All Other”. The Company also reports corporate expenses, as further detailed below, as “Corporate”. All segments follow the same basis of presentation and accounting policies as those described in Note 1 and 2, respectively.

• The Global Integrated Agencies reportable segment is comprised of the Company’s six global, integrated Partner Firms with broad marketing communication capabilities, including advertising, branding, digital, social media, design and production services, serving multinational clients around the world. Each Partner Firm within this segment represents an operating segment which includes 72andSunny, Anomaly, Crispin Porter + Bogusky, Doner, Forsman & Bodenfors, and kbs. These Partner Firms share similar characteristics related to (i) the nature of their services; (ii) the type of global clients and the methods used to provide services; and (iii) the extent to which they may be impacted by global economic and geopolitical risks. In addition, these Partner Firms compete with each other for new business and often have business move between them. The Company believes the expected average long-term profitability is similar among the Partner Firms aggregated in the Global Integrated Agencies segment.

• The Domestic Creative Agencies reportable segment is comprised of four Partner Firms that are national advertising agencies leveraging creative capabilities at their core. Each Partner Firm within this segment represents an operating segment which includes Colle + McVoy, Laird+Partners, Mono Advertising and Union. These Partner Firms share similar characteristics related to (i) the nature of their creative advertising services; (ii) the type of domestic client accounts and the methods used to provide services; and (iii) the extent to which they may be impacted by domestic economic and policy factors within North America. In addition, these Partner Firms compete with each other for new business and often have business move between them. The Company believes the expected average long-term profitability is similar among the Partner Firms aggregated in the Domestic Creative Agencies segment.

• The Specialist Communications reportable segment is comprised of seven Partner Firms that are each communications agencies with core service offerings in public relations and related communications services. Each Partner Firm within this segment represents an operating segment which includes Allison & Partners, Hunter PR, HL Group Partners, Kwittken, Luntz Global, Sloane & Company and Veritas. These Partner Firms share similar characteristics related to (i) the nature of their public relations and communication services, including content creation, social media and influencer marketing; (ii) the type of client accounts and the methods used to provide services; (iii) the extent to which they may be impacted by domestic economic and policy factors within North America; and (iv) the regulatory environment regarding public relations and social media. In addition, these Partner Firms compete with each other for new business and often have business move between them. The Company believes the expected average long-term profitability is similar among the Partner Firms aggregated in the Specialist Communications segment.

• The Media Services reportable segment is comprised of a unique single operating segment known as MDC Media Partners. MDC Media Partners is comprised of the Company’s network of stand-alone agencies with media buying and planning as their core competency, including the integrated platform Assembly. The agencies within this single operating segment share a Chief Executive Officer and Chief Financial Officer, who have operational oversight of these agencies. These agencies provide other services, including influencer marketing, content, insights & analytics, out-of-home, paid search, social media, lead generation, programmatic, artificial intelligence, and corporate barter. MDC Media Partners operates primarily in North America.

• All Other consists of the Company’s remaining Partner Firms that provide a range of diverse marketing communication services, but generally do not have similar services offerings or financial characteristics as those aggregated in the reportable segments. Each Partner Firm within the All Other category represents an operating segment which includes 6Degrees, Bruce Mau Design, Concentric Partners, Civilian, Gale Partners, Hello Design, Kenna, Kingsdale, Northstar Research Partners, Redscout, Relevent, Source Marketing, Team, Vitro, Yamamoto and Y Media Labs. The nature of the specialist services provided by these Partner Firms varies among each other and from those Partner Firms aggregated into the reportable segments. This results in these Partner Firms having current and long-term performance expectations inconsistent with those Partner Firms aggregated in the reportable segments.

• Corporate consists of corporate office expenses incurred in connection with the strategic resources provided to the Partner Firms, as well as certain other centrally managed expenses that are not fully allocated to the Partner Firms. These office and general expenses include (i) salaries and related expenses for corporate office employees, including employees dedicated to supporting the Partner Firms, (ii) occupancy expenses relating to properties occupied by all corporate office employees, (iii) other office and general expenses including professional fees for the financial statement audits and other public company costs, and (iv) certain other professional fees managed by the corporate office. Additional expenses managed by the corporate office that are directly related to the Partner Firms are allocated to the appropriate reportable segment and the All Other category.

Prior year results have been recast to reflect the new segment reporting.

	Years Ended December 31,
	2016			2015			2014
Revenue:
Global Integrated Agencies	$	696,410		$	652,987		$	600,150
Domestic Creative Agencies	85,953			91,658			83,196
Specialist Communications	170,285			153,920			124,938
Media Services	131,498			132,419			120,852
All Other	301,639			295,272			294,376
Corporate	—			—			—
Total	$	1,385,785		$	1,326,256		$	1,223,512
Segment operating income (loss):
Global Integrated Agencies	$	58,505		$	66,161		$	67,290
Domestic Creative Agencies	16,583			17,535			14,266
Specialist Communications	1,939			18,047			16,242
Media Services	6,154			20,116			29,706
All Other	9,368			15,423			28,322
Corporate	(44,118		)	(65,172		)	(68,077		)
Total	$	48,431		$	72,110		$	87,749
Other Income (Expense):
Other income, net	414			7,238			689
Foreign exchange gain (loss)	(213		)	(39,328		)	(18,482		)
Interest expense and finance charges, net	(98,348		)	(57,436		)	(54,847		)
Income (loss) continuing operations before income taxes and equity in earnings of non-consolidated affiliates	(49,716		)	(17,416		)	15,109
Income tax expense (benefit)	(9,404		)	3,761			9,776
Income (loss) from continuing operations before equity in earnings of non-consolidated affiliates	(40,312		)	(21,177		)	5,333
Equity in earnings (loss) of non-consolidated affiliates	(309		)	1,058			1,406
Income (loss) from continuing operations	(40,621		)	(20,119		)	6,739
Income (loss) from discontinued operations attributable to MDC Partners Inc., net of taxes	—			(6,281		)	(21,260		)
Net income (loss)	(40,621		)	(26,400		)	(14,521		)
Net income attributable to the noncontrolling interest	(5,218		)	(9,054		)	(6,890		)
Net income (loss) attributable to MDC Partners Inc.	$	(45,839	)	$	(35,454	)	$	(21,411	)

	Years Ended December 31,
	2016		2015		2014
Depreciation and amortization:
Global Integrated Agencies	$	21,447	$	20,599	$	17,410
Domestic Creative Agencies	1,653		1,855		1,809
Specialist Communications	6,637		11,201		8,272
Media Services	5,718		4,660		6,113
All Other	9,406		12,134		11,783
Corporate	1,585		1,774		1,785
Total	$	46,446	$	52,223	$	47,172
Stock-based compensation:
Global Integrated Agencies	$	12,141	$	6,981	$	5,043
Domestic Creative Agencies	634		644		394
Specialist Communications	3,629		1,510		2,050
Media Services	301		471		918
All Other	1,773		5,450		3,628
Corporate	2,525		2,740		5,663
Total	$	21,003	$	17,796	$	17,696
Capital expenditures:
Global Integrated Agencies	$	16,439	$	17,043	$	19,669
Domestic Creative Agencies	1,055		1,321		818
Specialist Communications	2,741		1,311		632
Media Services	5,110		825		475
All Other	4,054		2,704		3,485
Corporate	33		371		1,337
Total	$	29,432	$	23,575	$	26,416

A summary of the Company’s long-lived assets, comprised of fixed assets, goodwill and intangibles, net, as at December 31, is set forth in the following table.

	United States		Canada		Other		Total
Long-lived Assets
2016	$	67,617	$	5,887	$	4,873	$	78,377
2015	$	52,305	$	6,817	$	4,435	$	63,557
Goodwill and Intangible Assets
2016	$	736,334	$	121,987	$	71,509	$	929,830
2015	$	798,746	$	122,821	$	21,116	$	942,683

A summary of the Company’s revenue as at December 31 is set forth in the following table.

	United States		Canada		Other		Total
Revenue:
2016	$	1,103,714	$	124,101	$	157,970	$	1,385,785
2015	$	1,085,051	$	129,039	$	112,166	$	1,326,256
2014	$	993,474	$	150,390	$	79,648	$	1,223,512

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Related Party Transactions

12 Months Ended

Dec. 31, 2016

Related Party Transactions [Abstract]

Related Party Transactions

15. Related Party Transactions

Scott L. Kauffman is Chairman and Chief Executive Officer of the Company. His daughter, Sarah Kauffman, has been employed by Partner Firm kbs since July 2011, and currently acts as Director of Operations, Attention Partners. In 2016 and 2015, her total compensation, including salary, bonus and other benefits, totaled approximately $145 and $125, respectively. Her compensation is commensurate with that of her peers.

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Commitments, Contingencies and Guarantees

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments, Contingencies and Guarantees

16. Commitments, Contingencies and Guarantees

Deferred Acquisition Consideration.  In addition to the consideration paid by the Company in respect of certain of its acquisitions at closing, additional consideration may be payable, or may be potentially payable, based on the achievement of certain threshold levels of earnings. See Note 2 and Note 4.

Options to Purchase.  Noncontrolling shareholders in certain subsidiaries have the right in certain circumstances to require the Company to acquire the remaining ownership interests held by them. The noncontrolling shareholders’ ability to exercise any such option right is subject to the satisfaction of certain conditions, including conditions requiring notice in advance of exercise and specific employment termination conditions. In addition, these rights cannot be exercised prior to specified staggered exercise dates. The exercise of these rights at their earliest contractual date would result in obligations of the Company to fund the related amounts during 2017 to 2023. It is not determinable, at this time, if or when the owners of these rights will exercise all or a portion of these rights.

The amount payable by the Company in the event such rights are exercised is dependent on various valuation formulas and on future events, such as the average earnings of the relevant subsidiary through the date of exercise, the growth rate of the earnings of the relevant subsidiary during that period and, in some cases, the currency exchange rate at the date of payment.

Management estimates, assuming that the subsidiaries owned by the Company at December 31, 2016 perform over the relevant future periods at their trailing twelve-month earnings levels, that these rights, if all exercised, could require the Company to pay an aggregate amount of approximately $12,510 to the owners of such rights in future periods to acquire such ownership interests in the relevant subsidiaries. Of this amount, the Company is entitled, at its option, to fund approximately $124 by the issuance of share capital.

In addition, the Company is obligated under similar put option rights to pay an aggregate amount of approximately $43,085 only upon termination of such owner’s employment with the applicable subsidiary or death.

The amount the Company would be required to pay to the noncontrolling interest holders should the Company acquire the remaining ownership interests is $4,585 less than the initial redemption value recorded in redeemable noncontrolling interests.

Included in redeemable noncontrolling interests at December 31, 2016 was $60,180 of these put options because they are not within the control of the Company. The ultimate amount payable relating to these transactions will vary because it is dependent on the future results of operations of the subject businesses and the timing of when these rights are exercised.

Natural Disasters.  Certain of the Company’s operations are located in regions of the United States which typically are subject to hurricanes. During the years ended December 31, 2016, 2015, and 2014, these operations did not incur any material costs related to damages resulting from hurricanes.

Guarantees.  Generally, the Company has indemnified the purchasers of certain assets in the event that a third party asserts a claim against the purchaser that relates to a liability retained by the Company. These types of indemnification guarantees typically extend for a number of years. Historically, the Company has not made any significant indemnification payments under such agreements and no amount has been accrued in the accompanying consolidated financial statements with respect to these indemnification guarantees. The Company continues to monitor the conditions that are subject to guarantees and indemnifications to identify whether it is probable that a loss has occurred and would recognize any such losses under any guarantees or indemnifications in the period when those losses are probable and estimable.

Legal Proceedings.  The Company’s operating entities are involved in legal proceedings of various types. While any litigation contains an element of uncertainty, the Company has no reason to believe that the outcome of such proceedings or claims will have a material adverse effect on the financial condition or results of operations of the Company. In addition, the Company is involved in class action suits as described below.

MDC Partners remains committed to the highest standards of corporate governance and transparency in its reporting practices. In April 2015, the Company announced it was actively cooperating in connection with an SEC investigation of the Company. On January 18, 2017, the Company announced that it reached a final settlement agreement with the Philadelphia Regional Office of the SEC, and that the SEC entered an administrative Order concluding its investigation of the Company.

Under the Order, without admitting or denying liability, the Company agreed that it will not in the future violate Section 17(a)(2) of the Securities Act of 1933 and Sections 13(a), 13(b) and 14(a) of the Securities Exchange Act of 1934 and related rules requiring that periodic filings be accurate; that accurate books and records and a system of internal accounting controls be maintained; and that solicitations of proxies comply with the securities laws. In addition, the Company agreed to comply with all requirements under Regulation G relating to the disclosure and reconciliation of non-GAAP financial measures. Pursuant to the Order, and based upon the Company’s full cooperation with the investigation, the SEC imposed a civil penalty of $1,500 on the Company to resolve all potential claims against the Company relating to these matters. In 2016, the Company recorded a charge of $1,500 related to such penalty. There will be no restatement of any of the Company’s previously-filed financial statements.

On July 31, 2015, North Collier Fire Control and Rescue District Firefighter Pension Plan (“North Collier”) filed a putative class action suit in the Southern District of New York, naming as defendants MDC, CFO David Doft, former CEO Miles Nadal, and former CAO Mike Sabatino. On December 11, 2015, North Collier and co-lead plaintiff Plymouth County Retirement Association filed an amended complaint, adding two additional defendants, Mitchell Gendel and Michael Kirby, a former member of MDC’s Board of Directors. The plaintiff alleges in the amended complaint violations of § 10(b), Rule 10b-5, and § 20 of the Securities Exchange Act of 1934, based on allegedly materially false and misleading statements in the Company’s SEC filings and other public statements regarding executive compensation, goodwill accounting, and the Company’s internal controls. The Company filed a motion to dismiss the amended complaint on February 9, 2016, the lead plaintiffs filed an opposition to that motion on April 8, 2016, and the Company filed a reply brief on May 9, 2016. By order granted on September 30, 2016, the U.S. District Court presiding over the case granted the Company’s motion to dismiss the plaintiffs’ amended complaint in its entirety with prejudice. On November 2, 2016, the lead plaintiffs filed a notice to appeal the U.S. District Court's ruling to the U.S. Court of Appeals for the Second Circuit. On February 21, 2017, the lead plaintiffs voluntarily dismissed their appeal.

On August 7, 2015, Roberto Paniccia issued a Statement of Claim in the Ontario Superior Court of Justice in the City of Brantford, Ontario seeking to certify a class action suit naming the following as defendants: MDC, former CEO Miles S. Nadal, former CAO Michael C. Sabatino, CFO David Doft and BDO U.S.A. LLP. The Plaintiff alleges violations of section 138.1 of the Ontario Securities Act (and equivalent legislation in other Canadian provinces and territories) as well as common law misrepresentation based on allegedly materially false and misleading statements in the Company’s public statements, as well as omitting to disclose material facts with respect to the SEC investigation. The Company intends to continue to vigorously defend this suit. A case management judge has now been appointed but a date for an initial case conference has not yet been set.

One of the Company’s subsidiaries received a subpoena from the U.S. Department of Justice Antitrust Division concerning the Division’s ongoing investigation of production practices in the advertising industry. The Company and its subsidiary are fully cooperating with this confidential investigation.

Commitments.  At December 31, 2016, the Company had $4,360 of undrawn letters of credit. In addition, the Company has commitments to fund investments in an aggregate amount of $738.

Leases.  The Company and its subsidiaries lease certain facilities and equipment. For the years ended December 31, 2016, 2015, and 2014, gross premises rental expense amounted to $56,725, $47,583, and $42,657, respectively, which was reduced by sublease income of $3,027, $1,739, and $1,449, respectively. Where leases contain escalation clauses or other concessions, the impact of such adjustments is recognized on a straight-line basis over the minimum lease period.

Minimum rental commitments for the rental of office and production premises and equipment under non-cancellable leases net of sublease income, some of which provide for rental adjustments due to increased property taxes and operating costs, for the years ending December 31, 2017 and thereafter, are as follows:

Period	Amount
2017	$	57,294
2018	55,445
2019	51,858
2020	49,068
2021	43,697
2022 and thereafter	134,485
	$	391,847

At December 31, 2016, the total future cash to be received on sublease income is $11,599.

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New Accounting Pronouncements

12 Months Ended

Dec. 31, 2016

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

New Accounting Pronouncements

17. New Accounting Pronouncements

In January 2017, the FASB issued Accounting Standards Update (“ASU”) 2017-04, Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment, which eliminates step two from the two-step goodwill impairment test. Under the new guidance, an entity will perform its goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value provided the loss recognized does not exceed the total amount of goodwill allocated to that reporting unit. This guidance is effective for annual or interim goodwill impairment tests performed in fiscal years beginning after December 15, 2019. The Company does not expect the application of this guidance to have a significant impact on its consolidated financial position or results of operations.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows. This new guidance is intended to reduce diversity in practice regarding the classification of certain transactions in the statement of cash flows. This guidance is effective January 1, 2018 and requires a retrospective transition method. Early adoption is permitted. The Company currently classifies all cash outflows for contingent consideration as a financing activity. Upon adoption the Company is required to classify only the original estimated liability as a financing activity and any changes as an operating activity.

In February 2016, the FASB issued ASU 2016-02, which amends the ASC and creates Topic 842, Leases. Topic 842 will require lessees to recognize right-to-use assets and lease liabilities for those leases classified as operating leases under previous U.S. GAAP on the balance sheet. This guidance is effective for annual periods beginning after December 15, 2018 and early adoption is permitted. While not yet in a position to assess the full impact of the application of the new standard, the Company expects that the impact of recording the lease liabilities and the corresponding right-to-use assets will have a significant impact on its total assets and liabilities with a minimal impact on equity.

In January 2016, the FASB issued ASU 2016-01,Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Liabilities, which will require equity investments, except equity method investments, to be measured at fair value and any changes in fair value will be recognized in results of operations. This guidance is effective for annual and interim periods beginning after December 15, 2017 and early application is not permitted. Additionally, this guidance provides for the recognition of the cumulative effect of retrospective application of the new standard in the period of initial application. The Company does not expect the application of this guidance to have a significant impact on its consolidated financial position or results of operations.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, which will replace all existing revenue guidance under U.S GAAP. The core principle of ASU 2014-09 is to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration expected to be received in exchange for those goods or services. On July 9, 2015, the FASB approved a one year deferral of the effective date of ASU 2014-09 to all annual and interim periods beginning after December 15, 2017. ASU 2014-09 provides for one of two methods of transition: (i) retrospective application to each prior period presented; or (ii) recognition of the cumulative effect of retrospective application of the new standard as of the beginning of the period of initial application. The Company plans to apply ASU 2014-09 on the effective date of January 1, 2018. Presently, the Company is not yet in a position to conclude on the transition method it will choose. Based on the Company’s initial assessment, the impact of the application of the new standard will likely result in a change in the timing of our revenue recognition for performance incentives received from clients. Performance incentives are currently recognized in revenue when specific quantitative goals are achieved, or when the Company’s performance against qualitative goals is determined by the client. Under the new standard, the Company will be required to estimate the amount of the incentive that will be earned at the inception of the contract and recognize such incentive over the term of the contract. While performance incentives are not material to the Company’s revenue, this will result in an acceleration of revenue recognition for certain contract incentives compared to the current method. Additionally, in certain businesses, the Company records revenue as a principal and includes certain third-party-pass-through and out-of-pocket costs, which are billed to clients in connection with the services provided. In March 2016, the FASB issued further guidance on principal versus agent considerations. The Company is currently evaluating the impact of the principal versus agent guidance on its revenue and cost of services; however, such change is not expected to have a material effect on the Company’s results of operations.

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2016

Retirement Benefits [Abstract]

Employee Benefit Plans

18. Employee Benefit Plans

A subsidiary acquired in 2012 sponsors a defined benefit plan. The benefits under the defined benefit plans are based on each employee’s years of service and compensation. Effective March 1, 2006, the plan was frozen to all new employees. The Company’s policy is to contribute the minimum amounts required by the Employee Retirement Income Security Act of 1974 (ERISA), as amended. The assets of the plans are invested in an investment trust fund and consist of investments in money market funds, bonds and common stock, mutual funds, preferred stock, and partnership interests.

Net periodic pension cost consists of the following components for the years ended December 31:

	Pension Benefits			Pension Benefits
	2016			2015
Service cost	$	—		$	—
Interest cost on benefit obligation	1,855			1,864
Expected return on plan assets	(1,863		)	(2,069		)
Curtailment and settlements	929			—
Amortization of prior service cost	—			—
Amortization of actuarial (gains) losses	137			103
Net periodic benefit cost (benefit)	$	1,058		$	(102	)

ASC 715-30-25 requires an employer to recognize the funded status of its defined pension benefit plan as a net asset or liability in its statement of financial position with an offsetting amount in accumulated other comprehensive income, and to recognize changes in that funded status in the year in which changes occur through comprehensive income.

Other changes in plan assets and benefit obligation recognized in Other Comprehensive Loss consist of the following components for the years ended December 31:

	Pension Benefits			Pension Benefits
	2016			2015
Curtailment/settlement	$	—		$	—
Current year actuarial (gain) loss	3,238			526
Amortization of actuarial gain (loss)	(137		)	(103		)
Current year prior service (credit) cost	—			—
Amortization of prior service credit (cost)	—			—
Amortization of transition asset (obligation)	—			—
Total recognized in other comprehensive (income) loss	$	3,101		$	423
Total recognized in net periodic benefit cost and other comprehensive (income) loss	4,159			$	321

The following table summarizes the change in benefit obligations and fair values of plan assets for the years ended December 31:

	Pension Benefits			Pension Benefits
	2016			2015
Change in benefit obligation:
Benefit obligation, Beginning balance	$	40,296		$	43,799
Service Cost	—			—
Interest Cost	1,855			1,864
Change in Mortality	—			—
Plan amendments	—			—
Curtailment/settlement	—			—
Actuarial (gains) losses	2,502			(2,774		)
Benefits paid	(3,931		)	(2,593		)
Benefit obligation, Ending balance	40,722			40,296
Change in plan assets:
Fair value of plan assets, Beginning balance	25,190			28,360
Actual return on plan assets	198			(1,232		)
Employer contributions	3,025			655
Benefits paid	(3,931		)	(2,593		)
Fair value of plan assets, Ending balance	24,482			25,190
Unfunded status	$	16,240		$	15,106

Amounts recognized in the balance sheet at December 31 consist of the following:

	Pension Benefits		Pension Benefits
	2016		2015
Non-current liability	$	16,240	$	15,106
Net amount recognized	$	16,240	$	15,106

Amounts recognized, net of tax, in Accumulated Other Comprehensive Loss consists of the following components for the years ended December 31:

	Pension Benefits		Pension Benefits
	2016		2015
Accumulated net actuarial losses	$	12,320	$	9,219
Accumulated prior service cost	—		—
Accumulated transition obligation	—		—
Amount recognized, net of tax	$	12,320	$	9,219

The preceding table presents two measures of benefit obligations for the pension plan. Accumulated benefit obligation generally measures the value of benefits earned to date. Projected benefit obligation also includes the effect of assumed future compensation increases for plans in which benefits for prior service are affected by compensation changes. This pension plan has asset values less than these measures. Plan funding amounts are calculated pursuant to ERISA and Internal Revenue Code rules.

The following weighted average assumptions were used to determine benefit obligations as of December 31:

	Pension Benefits		Pension Benefits
	2016		2015
Discount rate	4.32	%	4.69	%
Rate of compensation increase	N/A		N/A

The discount rate assumptions at December 31, 2016 and 2015 were determined independently. A yield curve was produced for a universe containing the majority of U.S.-issued AA-graded corporate bonds, all of which were non-callable (or callable with make-whole provisions). The discount rate was developed as the level equivalent rate that would produce the same present value as that using spot rates aligned with the projected benefit payments.

The following weighted average assumptions were used to determine net periodic costs at December 31:

	Pension Benefits		Pension Benefits
	2016		2015
Discount rate	4.69	%	4.38	%
Expected return on plan assets	7.40	%	7.40	%
Rate of compensation increase	N/A		N/A

The expected return on plan assets is a long-term assumption established by considering historical and anticipated returns of the asset classes invested in by the pension plan and the allocation strategy currently in place among those classes.

Fair Value of Plan Assets

The Defined Benefit plan assets fall into any of three fair value classifications as defined in the FASB ASC Topic 820, Fair Value Measurements. There are no Level 3 assets held by the plan. The fair value of the plan assets as of December 31 is as follows:

	December 31, 2016		Level 1		Level 2		Level 3
Asset Category:
Money Market Fund – Short Term Investments	$	1,687	$	1,687	$	—	$	—
Common Stock	—		—		—		—
Corporate Bonds	—		—		—		—
Mutual Funds	22,795		22,795		—		—
Foreign Stock	—		—		—		—
Total	$	24,482	$	24,482	$	—	$	—

	December 31, 2015		Level 1		Level 2		Level 3
Asset Category:
Money Market Fund – Short Term Investments	$	1,580	$	145	$	1,435	$	—
Common Stock	9,479		9,479		—		—
Corporate Bonds	3,834		—		3,834		—
Mutual Funds	10,006		10,006		—		—
Foreign Stock	291		291		—		—
Total	$	25,190	$	19,921	$	5,269	$	—

The pension plans weighted-average asset allocation for the years ended December 31, 2016 and 2015 are as follows:

	Target Allocation		Actual Allocation		Actual Allocation
	2016		2016		2015
Asset Category:
Equity Securities	68.0	%	65.5	%	68.0	%
Debt Securities	31.0	%	27.6	%	25.7	%
Cash/Cash Equivalents and Short Term Investments	1.0	%	6.9	%	6.3	%
	100	%	100	%	100	%

The investment policy for the plans is formulated by the Company’s Pension Plan Committee (the “Committee”). The Committee is responsible for adopting and maintaining the investment policy, managing the investment of plan assets and ensuring that the plans’ investment program is in compliance with all provisions of ERISA, as well as the appointment of any investment manager who is responsible for implementing the plans’ investment process.

The goals of the pension plan investment program are to fully fund the obligation to pay retirement benefits in accordance with the plan documents and to provide returns that, along with appropriate funding from the Company, maintain an asset/liability ratio that is in compliance with all applicable laws and regulations and assures timely payment of retirement benefits.

The Company’s overall investment strategy is to achieve a mix of approximately 50 percent of investments for long-term growth and 50 percent for near-term benefit payments with a wide diversification of asset types and fund strategies.

Equity securities primarily include investments in large-cap and mid-cap companies primarily located in the United States, as well as a smaller percentage invested in large-cap and mid-cap companies located outside of the United States. Fixed income securities are diversified across different asset types with bonds issued in the United States as well as outside the United States.

The target allocation of plan assets is 50 percent equity securities and 50 percent corporate bonds and U.S. Treasury securities.

The Plan invests in various investment securities. The investments are primarily invested in corporate equity and bond securities. Investment securities are exposed to various risks such as interest rate, market, and credit risks. Due to the level of risk associated with certain investment securities, it is at least reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect the amounts reported in the preceding tables.

The above tables present information about the pension plan assets measured at fair value at December 31, 2016 and the valuation techniques used by the Company to determine those fair values.

In general, fair values determined by Level 1 inputs use quoted prices in active markets for identical assets that the Plan has the ability to access.

Fair values determined by Level 2 inputs use other inputs that are observable, either directly or indirectly. These Level 2 inputs include quoted prices for similar assets in active markets, and other inputs such as interest rates and yield curves that are observable at commonly quoted intervals.

Level 3 inputs are unobservable inputs, including inputs that are available in situations where there is little, if any, market activity for the related asset.

In instances where inputs used to measure fair value fall into different levels in the above fair value hierarchy, fair value measurements in their entirety are categorized based on the lowest level input that is significant to the valuation. The Company’s assessment of the significance of particular inputs to these fair value measurements requires judgment and considers factors specific to each plan asset.

The net of investment manager fee asset return objective is to achieve a return earned by passively managed market index funds, weighted in the proportions identified in the strategic asset allocation matrix. Each investment manager is expected to perform in the top one-third of funds having similar objectives over a full market cycle.

The investment policy is reviewed by the Committee at least annually and confirmed or amended as needed. Under ASC 715-30-25, the transition obligation, prior service costs, and actuarial (gains)/losses are recognized in Accumulated Other Comprehensive Income each December 31 or any interim measurement date, while amortization of these amounts through net periodic benefit cost will occur in accordance with ASC 715-30 and ASC 715-60. The estimated amounts that will be amortized in 2017 are as follows:

	Pension Benefits
Estimated Amortization:	2017
Prior service cost (credit) amortization	$	—
Net loss amortization	222
Total	$	222

The following estimated benefit payments, which reflect expected future service, as appropriate, are expected to be paid in the years ending December 31:

Period	Amount
2017	$	1,613
2018	$	1,762
2019	$	1,858
2020	$	2,028
2021	$	2,020
2022 and thereafter	$	11,269

The pension plan contributions are deposited into a trust, and the pension plan benefit payments are made from trust assets.

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Changes in Accumulated Other Comprehensive Income (Loss)

12 Months Ended

Dec. 31, 2016

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Changes in Accumulated Other Comprehensive Income (Loss)

19. Changes in Accumulated Other Comprehensive Income (Loss)

The changes in accumulated other comprehensive income (loss) for the year ended December 31 were:

	Defined Benefit Pension			Foreign Currency Translation			Total
Balance December 31, 2014	$	(8,796	)	$	1,044		$	(7,752	)
Other comprehensive income before reclassifications	—			14,432			14,432
Amounts reclassified from accumulated other comprehensive income (loss)	(423		)	—			(423		)
Other comprehensive income (loss)	$	(423	)	$	14,432		$	14,009
Balance December 31, 2015	$	(9,219	)	$	15,476		$	6,257
Other comprehensive income before reclassifications	—			(4,980		)	(4,980		)
Amounts reclassified from accumulated other comprehensive income (loss)	(3,101		)	—			(3,101		)
Other comprehensive income (loss)	(3,101		)	(4,980		)	(8,081		)
Balance December 31, 2016	$	(12,320	)	$	10,496		$	(1,824	)

Reclassifications for the years ended December 31 were as follows:

	2016		2015
Amortization of defined pension plan:
Prior service cost	$	—	$	—
Actuarial losses	137		103
Net periodic benefit cost	137		103
Income tax expense	55		41
Net of tax	$	82	$	62

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Quarterly Results of Operations (Unaudited)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations (Unaudited)

Quarterly Results of Operations (Unaudited)

The following table sets forth a summary of the Company’s consolidated unaudited quarterly results of operations for the years ended December 31, in thousands of dollars, except per share amounts.

	Quarters
	First			Second		Third			Fourth
Revenue:
2016	$	309,042		$	337,047	$	349,254		$	390,442
2015	$	302,222		$	336,606	$	328,415		$	359,013
Cost of services sold:
2016	$	211,446		$	228,835	$	235,659		$	260,193
2015	$	210,419		$	225,042	$	212,925		$	231,330
Income (loss) from continuing operations:
2016	$	(22,772	)	$	2,089	$	(31,081	)	$	11,143
2015	$	(22,941	)	$	31,548	$	(4,690	)	$	(24,036	)
Net income (loss) attributable to MDC Partners Inc.:
2016	$	(23,631	)	$	835	$	(32,140	)	$	9,097
2015	$	(31,615	)	$	30,036	$	(8,128	)	$	(25,747	)
Income (loss) per common share:
Basic
Continuing operations:
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17
2015	$	(0.51	)	$	0.58	$	(0.14	)	$	(0.52	)
Net income (loss):
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17
2015	$	(0.64	)	$	0.60	$	(0.16	)	$	(0.52	)
Diluted
Continuing operations:
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17		(1)
2015	$	(0.51	)	$	0.57	$	(0.14	)	$	(0.52	)
Net income (loss):
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17		(1)
2015	$	(0.64	)	$	0.60	$	(0.16	)	$	(0.52	)

(1) The diluted income per share calculation for the fourth quarter of 2016 excludes the Company's option to settle the deferred acquisition consideration in shares related to F&B. If such shares were included, the diluted income per common share would be $0.14.

The above revenue, cost of services sold, and income (loss) from continuing operations have primarily been affected by acquisitions, divestitures and discontinued operations.

Historically, with some exceptions, the Company’s fourth quarter generates the highest quarterly revenues in a year. The fourth quarter has historically been the period in the year in which the highest volumes of media placements and retail related consumer marketing occur.

Income (loss) from continuing operations and net loss have been affected as follows:

• The fourth quarter of 2016 and 2015 included a foreign exchange loss of $10,081 and $9,531, respectively.

• The fourth quarter of 2016 and 2015 included stock-based compensation charges of $5,560 and $4,771, respectively.

• The fourth quarter of 2016 and 2015 included deferred acquisition adjustments of $(9,211) and $41,913, respectively.

• The third and fourth quarter of 2016 included goodwill impairment charges of $29,631 and $18,893, respectively.

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VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2014

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

For the Three Years Ended December 31,

(Dollars in Thousands)

Column A	Column B		Column C		Column D			Column E			Column F
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Removal of Uncollectible Receivables			Translation Adjustments Increase (Decrease)			Balance at the End of Period
Valuation accounts deducted from assets to which they apply –  allowance for doubtful accounts:
December 31, 2016	$	1,306	$	1,053	$	(830	)	$	(6	)	$	1,523
December 31, 2015	$	1,409	$	750	$	(799	)	$	(54	)	$	1,306
December 31, 2014	$	2,011	$	556	$	(1,127	)	$	(31	)	$	1,409

Schedule II — 2 of 2

MDC PARTNERS INC. & SUBSIDIARIES

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

For the Three Years Ended December 31,

(Dollars in Thousands)

Column A	Column B		Column C			Column D			Column E			Column F
Description	Balance at Beginning of Period		Charged to Costs and Expenses			Other(1)			Translation Adjustments Increase (Decrease)			Balance at the End of Period
Valuation accounts deducted from assets to which they apply – valuation allowance for deferred income taxes:
December 31, 2016	$	247,967	$	6,605		$	(6,032	)	$	327		$	248,866
December 31, 2015	$	175,218	$	3,565		$	73,390		$	(4,206	)	$	247,967
December 31, 2014	$	161,875	$	(643	)	$	15,331		$	(1,345	)	$	175,218

____________

(1) Adjustment to reconcile actual net operating loss carry forwards to prior year tax accrued, utilization of net operating loss carry forwards, which were fully reserved, adjustment for net operating loss relating to sale of business and pension plan adjustment.

(b) Exhibits

The exhibits listed on the accompanying Exhibits Index are filed as a part of this report.

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Other Events (Notes)

12 Months Ended

Dec. 31, 2016

Other Events [Abstract]

Other Events [Text Block]

21. Other Events

On January 18, 2017, the Company announced that it reached a final settlement agreement with the Philadelphia Regional Office of the SEC in connection with its prior investigation of the Company, and that the SEC entered an administrative Order concluding its investigation of the Company. Pursuant to the Order, and based upon the Company’s full cooperation with the investigation, the SEC imposed a civil penalty of $1,500 on the Company to resolve all potential claims against the Company relating to these matters. There will be no restatement of any of the Company’s previously-filed financial statements.

In connection with the investigation, Miles Nadal resigned from his position as CEO and as a Director of the Company’s Board of Directors, effective July 20, 2015, and agreed to repay to the Company specified expenses paid by the Company on his behalf and prior cash bonus awards. Specifically, as of December 31, 2015, Mr. Nadal repaid to the Company an aggregate amount equal to $11,285 in respect of perquisites and improper payments identified by the Special Committee. The Company recorded this amount as a reduction of office and general expenses in 2015. In addition, Mr. Nadal agreed to repay to the Company $10,582 in connection with amounts required to be repaid pursuant to cash bonus awards previously paid to Mr. Nadal, with such repayments to be made in five installments, with the last to be paid on December 31, 2017. Mr. Nadal repaid to the Company the first installment of $1,000 in September 2015, the second installment of $1,500 in December 2015, and an additional payment of $2,000 in December 2016. An additional $6,082 is due in 2017. In 2015, the Company recorded a charge of approximately  $5,338 for the balance of prior cash bonus award amounts that will not be recovered.

For the twelve months ended December 31, 2016, the Company has incurred $4,065 of professional expenses and $1,500 of civil penalty payments relating to the prior SEC investigation, which were offset by $5,919 of proceeds from the Company’s D&O insurance policy.

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Subsequent Events Subsequent Events (Notes)

12 Months Ended

Dec. 31, 2016

Subsequent Events [Abstract]

Subsequent Events [Text Block]

22. Subsequent Events

On February 14, 2017, the Company entered into a securities purchase agreement with Broad Street Principal Investments, L.L.C., an affiliate of The Goldman Sachs Group Inc. (the “Purchaser”), pursuant to which the Company has agreed to issue and sell to the Purchaser, and the Purchaser has agreed to purchase, 95,000 newly authorized Series 4 convertible preference shares for an aggregate purchase price in cash of $95.0 million, subject to the terms and conditions set forth in the securities purchase agreement. The closing of the transaction is expected to occur in the first quarter of 2017, subject to the conditions set forth in the securities purchase agreement.

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Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Accounting Changes [Text Block]

Accounting Changes. On December 31, 2016, the Company retrospectively adopted the FASB Accounting Standards Update (“ASU”) 2015-17, Income Taxes (Topic 740). This update requires that deferred tax assets and liabilities be classified as non-current. As a result of the adoption of ASU 2015-17, the balance sheet at December 31, 2015 was adjusted to reflect the reclassification of $14,381 from other current assets to long-term deferred tax assets and $263 from accruals and other liabilities to long-term deferred tax liabilities.

On January 1, 2016, the Company retrospectively adopted the FASB ASU 2015-03, Interest - Imputation of Interest. This update requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. As a result of the adoption of this update, the balance sheet at December 31, 2015 was adjusted to reflect the reclassification of $12,625 from other assets to long-term debt.

Additionally, the Company prospectively adopted the FASB ASU 2016-09, Stock Compensation (Topic 718). As a result of the adoption, there was no material impact.

Subsidiary and Equity Investment Stock Transaction, Policy [Policy Text Block]

Subsidiary and Equity Investment Stock Transactions. Transactions involving the purchase, sale or issuance of stock of a subsidiary where control is maintained are recorded as a reduction in the redeemable noncontrolling interests or noncontrolling interests, as applicable. Any difference between the purchase price and noncontrolling interest is recorded to additional paid-in capital. In circumstances where the purchase of shares of an equity investment results in obtaining control, the existing carrying value of the investment is remeasured to the acquisition date fair value and any gain or loss is recognized in results of operations.

Consolidation

Principles of Consolidation.  The accompanying consolidated financial statements include the accounts of MDC Partners Inc. and its domestic and international controlled subsidiaries that are not considered variable interest entities, and variable interest entities for which the Company is the primary beneficiary. Intercompany balances and transactions have been eliminated in consolidation.

Reclassifications [Text Block]

Reclassifications. Certain reclassifications have been made to the prior period financial statements to conform to the current period presentation. During the three months ended March 31, 2017, the Company changed the presentation of book overdrafts on its statement of cash flows to classify the associated cash flows as operating activities. Book overdrafts were previously presented within financing activities. This resulted in cash outflows of $6,636 and $1,410, and inflows of $37,835, being reclassified from financing activities to operating activities for the for the years ended December 31,2016, 2015 and 2014, respectively. There was no impact on the Company’s consolidated statements of operations, comprehensive income (loss), or balance sheets.

Use of Estimates

Use of Estimates.  The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities including goodwill, intangible assets, contingent deferred acquisition consideration, valuation allowances for receivables, deferred tax assets and the amounts of revenue and expenses reported during the period. These estimates are evaluated on an ongoing basis and are based on historical experience, current conditions and various other assumptions believed to be reasonable under the circumstances. Actual results could differ from these estimates.

Fair Value Measurement

Fair Value.  The Company applies the fair value measurement guidance of the FASB Accounting Standards Codification (the “ASC”) Topic 820, Fair Value Measurements, for financial assets and liabilities that are required to be measured at fair value and for non-financial assets and liabilities that are not required to be measured at fair value on a recurring basis, including goodwill and other identifiable intangible assets. The measurement of fair value requires the use of techniques based on observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions. The inputs create the following fair value hierarchy:

• Level 1 - Quoted prices for identical instruments in active markets.

• Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations where inputs are observable or where significant value drivers are observable.

• Level 3 - Instruments where significant value drivers are unobservable to third parties.

When available, the Company uses quoted market prices to determine the fair value of its financial instruments and classifies such items in Level 1. In some cases, quoted market prices are used for similar instruments in active markets and the Company classifies such items in Level 2.

Concentration Risk, Credit Risk

Concentration of Credit Risk.  The Company provides marketing communications services to clients who operate in most industry sectors. Credit is granted to qualified clients in the ordinary course of business. Due to the diversified nature of the Company’s client base, the Company does not believe that it is exposed to a concentration of credit risk. No client accounted for more than 10% of the Company’s consolidated accounts receivable as of December 31, 2016 and 2015. No clients accounted for 10% of the Company's revenue in each of the years ended December 31, 2016, 2015, and 2014.

Cash and Cash Equivalents

Cash and Cash Equivalents.  The Company’s cash equivalents are primarily comprised of investments in overnight interest-bearing deposits, commercial paper and money market instruments and other short-term investments with original maturity dates of three months or less at the time of purchase. The Company has a concentration of credit risk in that there are cash deposits in excess of federally insured amounts.

Cash in Trust, Policy [Policy Text Block]

Cash in Trust. A subsidiary of the Company holds restricted cash in trust accounts related to funds received on behalf of clients. Such amounts are held in escrow under depositary service agreements and distributed at the direction of the clients.  The funds are presented as a corresponding liability on the balance sheet.

Premiums Receivable, Allowance for Doubtful Accounts, Estimation Methodology

Allowance for Doubtful Accounts.  Trade receivables are stated at invoiced amounts less allowances for doubtful accounts. The allowances represent estimated uncollectible receivables associated with potential customer defaults usually due to customers’ potential insolvency. The allowances include amounts for certain customers where a risk of default has been specifically identified. The assessment of the likelihood of customer defaults is based on various factors, including the length of time the receivables are past due, historical experience and existing economic conditions.

Expenditures Billable To Clients

Expenditures Billable to Clients.  Expenditures billable to clients consist principally of outside vendor costs incurred on behalf of clients when providing advertising, marketing and corporate communications services that have not yet been invoiced to clients. Such amounts are invoiced to clients at various times over the course of the production process.

Property, Plant and Equipment

Fixed Assets.  Fixed assets are stated at cost, net of accumulated depreciation. Computers, furniture and fixtures are depreciated on a straight-line basis over periods of three to seven years. Leasehold improvements are depreciated on a straight-line basis over the lesser of the term of the related lease or the estimated useful life of the asset. Repairs and maintenance costs are expensed as incurred.

Impairment Of Long Lived Assets

Impairment of Long-lived Assets.  In accordance with the FASB ASC, a long-lived asset or asset group is tested for recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable. When such events occur, the Company compares the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset or asset group to the carrying amount of such asset or asset group. If this comparison indicates that there is an impairment, the amount of the impairment is typically calculated using discounted expected future cash flows where observable fair values are not readily determinable. The discount rate applied to these cash flows is based on the Company’s weighted average cost of capital (“WACC”), risk adjusted where appropriate.

Equity Method Investments

Equity Method Investments.  The equity method is used to account for investments in entities in which the Company has an ownership interest of less than 50% and has significant influence, or joint control by contractual arrangement, (i) over the operating and financial policies of the affiliate or (ii) has an ownership interest greater than 50%; however, the substantive participating rights of the noncontrolling interest shareholders preclude the Company from exercising unilateral control over the operating and financial policies of the affiliate. The Company’s investments accounted for using the equity method include a 30% undivided interest in a real estate joint venture and various interests in investment funds. The Company’s management periodically evaluates these investments to determine if there has been a decline in value that is other than temporary. These investments are included in investments in non-consolidated affiliates.

During the year ended December 31,2016, the Company sold its ownership in two of these equity method investments for $4,023 and recognized a gain of $623 in Other income.

During the year ended December 31, 2015, the Company sold its ownership in one of these equity method investments for $2,094 and recognized a gain of $1,086 in Other income.

Cost Method Investments

Cost Method Investments.  From time to time, the Company makes non-material cost based investments in start-up advertising technology companies and innovative consumer product companies where the Company does not exercise significant influence over the operating and financial policies of the investee. The total net cost basis of these investments, which is included in Other Assets on the balance sheet, as of December 31, 2016 and 2015 was $10,132 and $11,763, respectively. These investments are periodically evaluated to determine whether a significant event or change in circumstances has occurred that may impact the fair value of each investment other than temporary declines below book value. A variety of factors are considered when determining if a decline is other than temporary, including, among others, the financial condition and prospects of the investee, as well as the Company’s investment intent.

During the year ended December 31, 2016, the Company sold its ownership in three of these cost method investments for an aggregate purchase price of $4,074 and recognized a gain of $1,309 in Other income.

During the year ended December 31, 2015, the Company sold its ownership in six of these cost method investments for an aggregate purchase price of $11,364 and recognized a gain of $5,440 in Other income.

In addition, the Company’s partner agencies may receive noncontrolling equity interests from start-up companies in lieu of fees. During the year ended December 31, 2014, the Company liquidated two such equity interest positions in exchange for an aggregate purchase price equal to $8,248. The purchasers of these equity investments were current investors in such entities and two executive officers of our subsidiary partner agencies.

Goodwill and Intangible Assets, Goodwill

Goodwill and Indefinite Lived Intangibles.  In accordance with the FASB ASC topic, Goodwill and Other Intangible Assets, goodwill and indefinite life intangible assets (trademarks) acquired as a result of a business combination which are not subject to amortization are tested for impairment annually as of October 1st of each year, or more frequently if indicators of potential impairment exist. For goodwill, impairment is assessed at the reporting unit level.

For the annual impairment testing the Company has the option of assessing qualitative factors to determine whether it is more likely than not that the carrying amount of a reporting unit exceeds its fair value or performing the two-step goodwill impairment test. Qualitative factors considered in the assessment include industry and market considerations, the competitive environment, overall financial performance, changing cost factors such as labor costs, and other factors specific to each reporting unit such as change in management or key personnel.

If the Company elects to perform the qualitative assessment and concludes that it is more likely than not that the fair value of the reporting unit is more than its carrying amount, then goodwill is not considered impaired and the two-step goodwill impairment test is not necessary. For reporting units for which the qualitative assessment concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount and for reporting units for which the qualitative assessment is not performed, the Company will perform the first step of the goodwill impairment test, which compares the fair value of the reporting unit to its carrying amount. If the fair value of the reporting unit exceeds the carrying amount of the net assets assigned to that reporting unit, goodwill is not considered impaired and additional analysis is not required. However, if the carrying amount of the net assets assigned to the reporting unit exceeds the fair value of the reporting unit, then the second step of the goodwill impairment test must be performed to determine the implied fair value of the reporting unit’s goodwill.

Determining the fair value of a reporting unit involves the use of significant estimates and assumptions. The Company’s goodwill impairment test uses the income approach to estimate a reporting unit’s fair value. The income approach is based on a discounted cash flow (“DCF”) method, which requires the exercise of significant judgment, including judgment about the amount and timing of expected future cash flows, assumed terminal value and appropriate discount rates.

The DCF estimates incorporate expected cash flows that represent a spectrum of the amount and timing of possible cash flows of each reporting unit from a market participant perspective. The expected cash flows are developed as part of the Company’s routine long-range planning process using projections of revenue and expenses and related cash flows based on assumed long-term growth rates and demand trends and appropriate discount rates based on a reporting unit’s WACC as determined by considering the observable WACC of comparable companies and factors specific to the reporting unit (for example, size). The terminal value is estimated using a constant growth method which requires an assumption about the expected long-term growth rate. The estimates are based on historical data and experience, industry projections, economic conditions, and the Company’s expectations.

The assumptions used for the long-term growth rate and WACC in the annual goodwill impairment tests are as follows:

	October 1,
	2016	2015
Long-term growth rate	3%	3%
WACC	10.39% - 13.45%	8.92% - 11.95%

The Company’s reporting units vary in size with respect to revenue and operating profits. These differences drive variations in fair value of the reporting units. In addition, these differences as well as differences in book value, including goodwill, cause variations in the amount by which fair value exceeds the carrying amount of the reporting units. The reporting unit goodwill balances vary by reporting unit primarily because it relates specifically to the Partner Firm’s goodwill which was determined at the date of acquisition.

Under the second step of the goodwill impairment test, the Company utilizes both a market approach and income approach to estimate the implied fair value of a reporting unit’s goodwill. For the market approach, the Company utilizes both the guideline public company method and the precedent transaction method. For the income approach, the Company utilizes a DCF method. The Company weights the market and income approaches to arrive at an implied fair value of goodwill. If the Company determines that the carrying amount of a reporting unit’s goodwill exceeds its implied fair value, an impairment loss equal to the difference is recorded.

For the 2015 annual goodwill impairment testing, the Company had 13 reporting units. All of the reporting units were subject to the two-step test. As the fair value of all reporting units were in excess of their respective carrying amounts, there was no impairment of goodwill. The range of the excess of the fair value over the carrying amount was from 7% to over 100%. The Company performed a sensitivity analysis which included a 1% increase to the WACC. Based on the results of that analysis, one reporting unit, which was comprised of the marketing experiential businesses, was at risk of failing.

The Company noted no significant events or conditions during the first and second quarter of 2016 that would have affected the conclusions from the annual assessment. During the third quarter of 2016, the Company changed its operating segments, as a result of the management structure change as discussed in Note 14, which resulted in a corresponding change to the Company’s reporting units. Each Partner Firm now represents an operating segment as well as a reporting unit for goodwill impairment testing. As a result of the changes in the reporting units, the Company performed further analysis to assess whether the results of the 2015 testing would have been different had it been performed at the Partner Firm level. This change in operating segments, coupled with a decline in operating performance required the Company to perform interim goodwill testing on one of its experiential reporting units. Additionally, a triggering event occurred during the third quarter of 2016 that required the Company to perform interim goodwill testing on one non-material reporting unit. These two reporting units failed the first step of the goodwill impairment testing, and the second step of the goodwill impairment testing resulted in a partial impairment of goodwill of $27,893 and $1,738 relating to the experiential reporting unit and non-material reporting unit, respectively. See Note 8 for further information.

For the 2016 annual goodwill impairment test, the Company had 31 reporting units, all of which were subject to the two-step test.

For the 2016 annual goodwill impairment test, the carrying amount of one of the Company’s strategic communications reporting unit exceeded its fair value and the second step of the goodwill impairment test was performed, resulting in a partial impairment of goodwill of $18,893. The fair value for all other reporting units were in excess of their respective carrying amounts and as a result there was no additional impairment of goodwill. The range of the excess of the fair value over the carrying amount was from 5% to over 100%. The Company performed a sensitivity analysis which included a 1% increase to the WACC. Based on the results of that analysis, the non-material reporting unit for which a partial impairment of goodwill was recorded during the third quarter of 2016 would be at risk of failing; however, there were no events or circumstances that would more likely than not reduce the fair value of such reporting unit below its respective carrying value between the interim and annual goodwill impairment testing performed.

The Company believes the estimates and assumptions used in the calculations are reasonable. However, if there was an adverse change in the facts and circumstances, then an impairment charge may be necessary in the future. The Company will monitor its reporting units to determine if there is an indicator of potential impairment. Should the fair value of any of the Company’s reporting units fall below its carrying amount because of reduced operating performance, market declines, changes in the discount rate, or other conditions, charges for impairment may be necessary. Subsequent to the annual impairment test at October 1, 2016, there were no events or circumstances that triggered the need for an interim impairment test. See Note 8 for further information.

Intangible Assets, Finite-Lived

Definite Lived Intangible Assets.  In accordance with the FASB ASC, acquired intangibles are subject to amortization over their useful lives. The method of amortization selected reflects the pattern in which the economic benefits of the specific intangible asset is consumed or otherwise used up. If that pattern cannot be reliably determined, a straight-line amortization method is used over the estimated useful life. Intangible assets that are subject to amortization are reviewed for potential impairment at least annually or whenever events or circumstances indicate that carrying amounts may not be recoverable. See also Note 8.

Deferred Taxes

Deferred Taxes.  The Company uses the asset and liability method of accounting for income taxes. Deferred income taxes are provided for the temporary difference between the financial reporting basis and tax basis of the Company’s assets and liabilities. Deferred tax benefits result principally from certain tax carryover benefits and from recording certain expenses in the financial statements that are not currently deductible for tax purposes and from differences between the tax and book basis of assets and liabilities recorded in connection with acquisitions. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. Deferred tax liabilities result principally from deductions recorded for tax purposes in excess of that recorded in the financial statements or income for financial statement purposes in excess of the amount for tax purposes. The effect of changes in tax rates is recognized in the period the rate change is enacted.

During the second quarter of 2017, the Company identified and recorded out-of-period adjustments related to the misapplication of ASC 740 and ASC 850-740 accounting policies as they applied to the calculation of deferred tax liabilities.  The Company has revised prior period information presented on this Amendment No. 1 on Form 10-K/A as follows: (i) for the years ended December 31, 2016, 2015, and 2014, income tax expense has been reduced by $2,108, $1,903, and $2,646, respectively, (ii) basic and diluted net loss attributable to MDC Partners Inc. common shareholders for the years ended December 31, 2016, 2015, and 2014 increased by $0.04 per share, $0.04 per share, and $0.06 per share, respectively, (iii) deferred tax liabilities as of December 31, 2016 and 2015 have been increased by $6,916 and $9,016, respectively, and (iv) accumulated deficit as of December 31, 2013 has been increased by $13,568. The correction had no impact on the Company’s cash flows.

Business Combinations

BusinessCombinations. Business combinationsare accounted for using the acquisition method and accordingly, the assets acquired (including identified intangible assets), the liabilities assumed and any noncontrolling interest in the acquired business are recorded at their acquisition date fair values. The Company’s acquisition model typically provides for an initial payment at closing and for future additional contingent purchase price obligations. Contingent purchase price obligations are recorded as deferred acquisition consideration on the balance sheet at the acquisition date fair value and are remeasured at each reporting period. Changes in such estimated values are recorded in the results of operations. For the years ended December 31, 2016, 2015 and 2014, $7,972, $36,344 and $16,467, respectively, related to changes in estimated value was recorded as operating expenses. For further information, see Note 4 and Note 13. For the years ended December 31, 2016, 2015, and 2014, $2,640, $2,912 and $6,133, respectively, of acquisition related costs were charged to operations.

For each acquisition, the Company undertakes a detailed review to identify other intangible assets and a valuation is performed for all such identified assets. The Company uses several market participant measurements to determine estimated value. This approach includes consideration of similar and recent transactions, as well as utilizing discounted expected cash flow methodologies. Like most service businesses, a substantial portion of the intangible asset value that the Company acquires is the specialized know-how of the workforce, which is treated as part of goodwill and is not required to be valued separately. The majority of the value of the identifiable intangible assets acquired is derived from customer relationships, including the related customer contracts, as well as trade names. In executing the Company’s overall acquisition strategy, one of the primary drivers in identifying and executing a specific transaction is the existence of, or the ability to, expand the existing client relationships. The expected benefits of the Company’s acquisitions are typically shared across multiple agencies and regions.

Redeemable Noncontrolling Interest

Redeemable Noncontrolling Interests.  Many of the Company’s acquisitions include contractual arrangements where the noncontrolling shareholders have an option to purchase, or may require the Company to purchase, such noncontrolling shareholders’ incremental ownership interests under certain circumstances and the Company has similar call options under the same contractual terms. The amount of consideration under these contractual arrangements is not a fixed amount, but rather is dependent upon various valuation formulas as described in Note 16. In the event that an incremental purchase may be required of the Company, the amounts are recorded as redeemable noncontrolling interests in mezzanine equity on the balance sheet at their acquisition date fair value and adjusted for changes to their estimated redemption value through additional paid-in capital (but not less than their initial redemption value), except for foreign currency translation adjustments. These adjustments will not impact the calculation of earnings (loss) per share if the redemption values are less than the estimated fair values. For the three years ended December 31, 2016, 2015, and 2014, there was no impact on the Company's earnings (loss) per share calculation.

Variable Interest Entity

Variable Interest Entity.  Effective March 28, 2012, the Company invested in Doner Partners LLC (“Doner”). The Company acquired a 30% voting interest and convertible preferred interests that allow the Company to increase ordinary voting ownership to 70% at the Company’s option. The Company has determined that (i) this entity is a variable interest entity and (ii) the Company is the primary beneficiary because it receives a disproportionate share of profits and losses as compared to its ownership percentage. As such, Doner is consolidated for all periods subsequent to the date of investment.

Doner is a full service integrated creative agency that is included as part of the Company’s portfolio in the Global Integrated Agencies reportable segment. The Company’s Credit Agreement (see Note 11) is guaranteed and secured by all of Doner’s assets.

Total assets and total liabilities of Doner included in the Company’s consolidated balance sheet at December 31, 2016 and 2015, were $102,456 and $57,622, and $122,558 and $86,047, respectively.

Guarantees, Indemnifications and Warranties

Guarantees.  Guarantees issued or modified by the Company to third parties after January 1, 2003 are generally recognized, at the inception or modification of the guarantee, as a liability for the obligations it has undertaken in issuing the guarantee, including its ongoing obligation to stand ready to perform over the term of the guarantee in the event that the specified triggering events or conditions occur. The initial measurement of that liability is the fair value of the guarantee. The recognition of the liability is required even if it is not probable that payments will be required under the guarantee. The Company’s liability associated with guarantees is not significant. (See Note 16.)

Revenue Recognition

Revenue Recognition.  The Company’s revenue recognition policies are established in accordance with the Revenue Recognition topics of the FASB ASC, and accordingly, revenue is recognized when all of the following criteria are satisfied: (i) persuasive evidence of an arrangement exists; (ii) the selling price is fixed or determinable; (iii) services have been performed or upon delivery of the products when ownership and risk of loss has transferred to the client; and (iv) collection of the resulting receivable is reasonably assured.

The Company follows the Multiple-Element Arrangement topic of the FASB ASC, which addresses certain aspects of the accounting by a vendor for arrangements under which it will perform multiple revenue-generating activities and how to determine whether an arrangement involving multiple deliverables contains more than one unit of accounting.

The Company follows the Principal Agent Consideration topic of the FASB ASC which addresses (i) whether revenue should be recorded at the gross amount billed because it has earned revenue from the sale of goods or services, or recorded at the net amount retained because it has earned a fee or commission, and (ii) that reimbursements received for out-of-pocket expenses incurred should be characterized in the income statement as revenue. Accordingly, the Company has included such reimbursed expenses in revenue.

The Company earns revenue from agency arrangements in the form of retainer fees or commissions; from short-term project arrangements in the form of fixed fees or per diem fees for services; and from incentives or bonuses.

Non-refundable retainer fees are generally recognized on a straight-line basis over the term of the specific customer arrangement. Commission revenue is earned and recognized upon the placement of advertisements in various media when the Company has no further performance obligations. Fixed fees for services are recognized upon completion of the earnings process and acceptance by the client. Per diem fees are recognized upon the performance of the Company’s services. In addition, for a limited number of certain service transactions, which require delivery of a number of service acts, the Company uses the proportional performance model, which generally results in revenue being recognized based on the straight-line method.

Fees billed to clients in excess of fees recognized as revenue are classified as Advanced Billings on the Company’s balance sheet.

A small portion of the Company’s contractual arrangements with customers includes performance incentive provisions, which allow the Company to earn additional revenue as a result of its performance relative to both quantitative and qualitative goals. The Company recognizes the incentive portion of revenue under these arrangements when specific quantitative goals are assured, or when the Company’s clients determine performance against qualitative goals has been achieved. In all circumstances, revenue is only recognized when collection is reasonably assured. The Company records revenue net of sales and other taxes due to be collected and remitted to governmental authorities.

Cost Of Services Sold

Cost of Services Sold.  Cost of services sold do not include depreciation charges for fixed assets.

Interest Expense

Interest Expense.  Interest expense primarily consists of the cost of borrowing on the Company’s previously outstanding 6.75% Senior Notes due 2020 (the “6.75% Notes”); the Company’s 6.50% senior unsecured notes due 2024 (the “6.50% Notes”); and the Company’s $325 million senior secured revolving credit agreement due 2021 (the “Credit Agreement”). The Company uses the effective interest method to amortize the deferred financing costs as well as the original issue premium on the previously outstanding 6.75% Notes. The Company also uses the straight-line method to amortize the deferred financing costs on the Credit Agreement. For the years ended December 31, 2016, 2015, and 2014, interest expense included $255, $2,543, and $2,186, respectively, relating to present value adjustments for fixed deferred acquisition consideration payments.

Share-based Compensation, Option and Incentive Plans

Stock-Based Compensation.  Under the fair value method, compensation cost is measured at fair value at the date of grant and is expensed over the service period, in this case the award’s vesting period. The Company recognized forfeitures as they occur. When awards are exercised, share capital is credited by the sum of the consideration paid together with the related portion previously credited to additional paid-in capital when compensation costs were charged against income or acquisition consideration.

The Company uses its historical volatility derived over the expected term of the award to determine the volatility factor used in determining the fair value of the award.

Stock-based awards that are settled in cash, or may be settled in cash at the option of employees, are recorded as liabilities. The measurement of the liability and compensation cost for these awards is based on the fair value of the award, and is recorded in operating income over the service period, in this case the awards vesting period. Changes in the Company’s payment obligation prior to the settlement date of a stock-based award are recorded as compensation cost in operating income in the period of the change. The final payment amount for such awards is established on the date of the exercise of the award by the employee.

Stock-based awards that are settled in cash or equity at the option of the Company are recorded at fair value on the date of grant and recorded as additional paid-in capital. The fair value measurement of the compensation cost for these awards is based on using the Black-Scholes option pricing-model and is recorded in operating income over the service period, in this case the award's vesting period.

For the years ended December 31, 2016, 2015, and 2014, the Company issued no stock options or similar awards.

It is the Company’s policy for issuing shares upon the exercise of an equity incentive award to verify the amount of shares to be issued, as well as the amount of proceeds to be collected (if any) and to deliver new shares to the exercising party.

The Company has adopted the straight-line attribution method for determining the compensation cost to be recorded during each accounting period. The Company commences recording compensation expense related to awards that are based on performance conditions under the straight-line attribution method when it is probable that such performance conditions will be met. The fair value at the grant date for performance based awards granted in 2016, 2015, and 2014 was $140, $1,741, and $3,026, respectively.

The Company treats benefits paid by shareholders or equity members to employees as a stock-based compensation charge with a corresponding credit to additional paid-in capital.

From time to time, certain acquisitions and step-up transactions include an element of compensation related payments. The Company accounts for those payments as stock-based compensation.

Pension and Other Postretirement Plans

Pension Costs.  Several of the Company’s U.S. and Canadian subsidiaries offer employees access to certain defined contribution pension programs. Under the defined contribution plans, these subsidiaries, in some cases, make annual contributions to participants’ accounts which are subject to vesting. The Company’s contribution expense pursuant to these plans was $10,026, $6,731 and $7,503 for the years ended December 31, 2016, 2015, and 2014, respectively. The Company also has a defined benefit plan. See Note 18.

Earnings Per Share

Income (Loss) per Common Share.  Basic income (loss) per share is based upon the weighted average number of common shares outstanding during each period. “Share capital to be issued” as reflected in the Shareholders’ Equity on the balance sheet are also included if there is no circumstance under which those shares would not be issued. Diluted income (loss) per share is based on the above, in addition, if dilutive, common share equivalents, which include outstanding options, stock appreciation rights, and unvested restricted stock units.

Foreign Currency Transactions and Translations

Foreign Currency Translation.  The Company’s financial statements were prepared in accordance with the requirements of the Foreign Currency Translation topic of the FASB ASC. The functional currency of the Company is the Canadian dollar and it has decided to use U.S. dollars as its reporting currency for consolidated reporting purposes. Generally, the Company’s subsidiaries use their local currency as their functional currency. Accordingly, the currency impacts of the translation of the balance sheets of the Company’s non-U.S. dollar based subsidiaries to U.S. dollar statements are included as cumulative translation adjustments in accumulated other comprehensive income. Translation of intercompany debt, which is not intended to be repaid, is included in cumulative translation adjustments. Cumulative translation adjustments are not included in net earnings unless they are actually realized through a sale or upon complete, or substantially complete, liquidation of the Company’s net investment in the foreign operation. Translation of current intercompany balances are included in net earnings. The balance sheets of non-U.S. dollar based subsidiaries are translated at the period end rate. The income statements of non-U.S. dollar based subsidiaries are translated at average exchange rates for the period.

Gains and losses arising from the Company’s foreign currency transactions are reflected in net earnings. Unrealized gains or losses arising on the translation of certain intercompany foreign currency transactions that are of a long-term nature (that is settlement is not planned or anticipated in the future) are included as cumulative translation adjustments in accumulated other comprehensive income.

Derivatives, Reporting of Derivative Activity

Derivative Financial Instruments.  The Company follows the Accounting for Derivative Instruments and Hedging Activities topic of the FASB ASC, which establishes accounting and reporting standards requiring that every derivative instrument (including certain derivative instruments embedded in other contracts and debt instruments) be recorded on the balance sheet as either an asset or liability measured at its fair value. The accounting for the change in fair value of the derivative depends on whether the instrument qualifies for and has been designated as a hedging relationship and on the type of hedging relationship. There are three types of hedging relationships: (i) a cash flow hedge, (ii) a fair value hedge, and (iii) a hedge of foreign currency exposure of a net investment in a foreign operation. The designation is based upon the exposure being hedged. Derivatives that are not hedges, or become ineffective hedges, must be adjusted to fair value through earnings.

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Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Redeemable Noncontrolling Interest

The following table presents changes in redeemable noncontrolling interests:

	Years Ended December 31,
	2016			2015			2014
Beginning Balance as of January 1,	$	69,471		$	194,951		$	148,534
Redemptions	(1,708		)	(155,042		)	(4,820		)
Granted (1)	2,274			7,703			13,327
Changes in redemption value	(9,604		)	22,809			38,850
Currency translation adjustments	(253		)	(950		)	(940		)
Ending Balance as of December 31,	$	60,180		$	69,471		$	194,951

(1) Grants in 2015 consisted of transfers from noncontrolling interests related to step-up transactions and new acquisitions.

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Loss per Common Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share

The following table sets forth the computation of basic and diluted loss per common share from continuing operations for the years ended December 31:

	2016			2015			2014
Numerator
Numerator for diluted loss per common share – income (loss) from continuing operations	$	(40,621	)	$	(20,119	)	$	6,739
Net income attributable to the noncontrolling interests	(5,218		)	(9,054		)	(6,890		)
Loss attributable to MDC Partners Inc. common shareholders from continuing operations	(45,839		)	(29,173		)	(151		)
Effect of dilutive securities	—			—			—
Numerator for diluted loss per common share – loss attributable to MDC Partners Inc. common shareholders from continuing operations	$	(45,839	)	$	(29,173	)	$	(151	)
Denominator
Denominator for basic loss per common share – weighted average common shares	51,345,807			49,875,282			49,545,350
Effect of dilutive securities:
Dilutive potential common shares	—			—			—
Denominator for diluted loss per common share – adjusted weighted shares and assumed conversions	51,345,807			49,875,282			49,545,350
Basic and Diluted loss per common share from continuing operations	$	(0.89	)	$	(0.58	)	$	—

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Acquisitions (Tables)

12 Months Ended

Dec. 31, 2016

Business Combinations [Abstract]

Business Acquisition, Pro Forma Information [Table Text Block]

The following unaudited pro forma results of operations of the Company for the years ended December 31, 2016 and 2015 assume that the acquisition of F&B occurred on January 1, 2015. These unaudited pro forma results are not necessarily indicative of either the actual results of operations that would have been achieved had the acquisition of F&B taken place on January 1, 2015, or are they necessarily indicative of future results of operations.

	Year Ended December 31,
	2016			2015
Revenues	$	1,426,770		$	1,398,756
Net loss attributable to MDC Partners Inc.	$	(39,756	)	$	(34,398	)
Loss per common share:
Basic and Diluted
Net loss attributable to MDC Partners Inc. common shareholders	$	(0.76	)	$	(0.66	)

Schedule of Net Income (Loss) Attributable to Parent and Transfers to and from Noncontrolling Interest

Changes in the Company’s ownership interests in our less than 100% owned subsidiaries during the three years ended December 31, were as follows:

Net Loss Attributable to MDC Partners Inc. and

Transfers (to) from the Noncontrolling Interests

	Year Ended December 31,
	2016			2015			2014
Net loss attributable to MDC Partners Inc.	$	(45,839	)	$	(35,454	)	$	(21,411	)
Transfers (to) from the noncontrolling interests
Increase (decrease) in MDC Partners Inc. paid-in capital for purchase of equity interests in excess of noncontrolling interests and redeemable noncontrolling interests	22,776			(42,780		)	(8,992		)
Net transfers (to) from noncontrolling interests	$	22,776		$	(42,780	)	$	(8,992	)
Change from net loss attributable to MDC Partners Inc. and transfers (to) from noncontrolling interests	$	(23,063	)	$	(78,234	)	$	(30,403	)

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Fixed Assets (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

The following is a summary of the Company’s fixed assets as of December 31:

	2016							2015
	Cost		Accumulated Depreciation			Net Book Value		Cost		Accumulated Depreciation			Net Book Value
Computers, furniture and fixtures	$	91,909	$	(64,030	)	$	27,879	$	87,213	$	(62,901	)	$	24,312
Leasehold improvements	91,601		(41,103		)	50,498		72,898		(33,653		)	39,245
	$	183,510	$	(105,133	)	$	78,377	$	160,111	$	(96,554	)	$	63,557

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Accrued and Other Liabilities (Tables)

12 Months Ended

Dec. 31, 2016

Accrued Liabilities and Other Liabilities [Abstract]

Accrued and Other Liabilities Disclosure

Changes in noncontrolling interest amounts included in accrued and other liabilities for the three years ended December 31, were as follows:

	Noncontrolling Interests
Balance at December 31, 2013	$	5,210
Income attributable to noncontrolling interests	6,890
Distributions made	(6,523		)
Other(1)	437
Balance at December 31, 2014	$	6,014
Income attributable to noncontrolling interests	9,054
Distributions made	(9,503		)
Other(1)	(92		)
Balance at December 31, 2015	$	5,473
Income attributable to noncontrolling interests	5,218
Distributions made	(7,772		)
Other(1)	1,235
Balance at December 31, 2016	$	4,154

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Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill	Global Integrated Agencies			Domestic Creative Agencies			Specialist Communications			Media Services		All Other			Total
Balance at December 31, 2014	$	370,094		$	37,117		$	98,497		$	136,033	$	209,632		$	851,373
Acquired goodwill	—			—			—			6,253		37,401			43,654
Acquisition purchase price adjustments	(998		)	133			(879		)	—		(684		)	(2,428		)
Foreign currency translation	(4,937		)	(579		)	(40		)	—		(16,742		)	(22,298		)
Balance at December 31, 2015	$	364,159		$	36,671		$	97,578		$	142,286	$	229,607		$	870,301
Acquired goodwill	24,778			—			—			—		—			24,778
Disposition	—			—			—			—		(764		)	(764		)
Impairment loss recognized	—			—			(18,893		)	—		(29,631		)	(48,524		)
Transfer of goodwill between segments (1)	(34,400		)	—			—			34,400		—			—
Foreign currency translation	(3,821		)	91			6			—		2,692			(1,032		)
Balance at December 31, 2016	$	350,716		$	36,762		$	78,691		$	176,686	$	201,904		$	844,759

⁽¹⁾ During the year ended December 31, 2016, the Company transferred a component of one reporting unit to another reporting unit. As a result, based on the relative fair value, we transferred $34.4 million of goodwill from the Global Integrated Agencies reportable segment to Media Services, which represented the portion of the goodwill associated with the component.  An interim impairment analysis was performed both before and after the transfer, noting no impairment indicators were present.

	For the Year Ended December 31,
Intangible Assets	2016			2015
Trademarks (indefinite life)	$	17,780		$	17,780
Customer relationships – gross	$	121,408		$	135,919
Less accumulated amortization	(80,432		)	(97,604		)
Customer relationships – net	$	40,976		$	38,315
Other intangibles – gross	$	43,656		$	33,638
Less accumulated amortization	(17,341		)	(17,351		)
Other intangibles – net	$	26,315		$	16,287
Total intangible assets	$	182,844		$	187,337
Less accumulated amortization	(97,773		)	(114,955		)
Total intangible assets – net	$	85,071		$	72,382

Schedule of Intangible Assets and Goodwill

	For the Year Ended December 31,
Intangible Assets	2016			2015
Trademarks (indefinite life)	$	17,780		$	17,780
Customer relationships – gross	$	121,408		$	135,919
Less accumulated amortization	(80,432		)	(97,604		)
Customer relationships – net	$	40,976		$	38,315
Other intangibles – gross	$	43,656		$	33,638
Less accumulated amortization	(17,341		)	(17,351		)
Other intangibles – net	$	26,315		$	16,287
Total intangible assets	$	182,844		$	187,337
Less accumulated amortization	(97,773		)	(114,955		)
Total intangible assets – net	$	85,071		$	72,382

Finite-lived Intangible Assets Amortization Expense

The estimated amortization expense for the five succeeding years is as follows:

Year	Amortization
2017	$	16,677
2018	$	11,525
2019	$	7,346
2020	$	4,999
2021	$	3,411

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

The components of the Company’s income (loss) from continuing operations before income taxes and equity in earnings of non-consolidated affiliates by taxing jurisdiction for the years ended December 31, were:

	2016			2015			2014
Income (Loss):
U.S.	$	(16,661	)	$	23,180		$	46,728
Non-U.S.	(33,055		)	(40,596		)	(31,619		)
	$	(49,716	)	$	(17,416	)	$	15,109

Schedule Of Components Of Income Taxes Provision Benefit

The provision (benefit) for income taxes by taxing jurisdiction for the years ended December 31, were:

	2016			2015			2014
Current tax provision
U.S. federal	$	—		$	—		$	—
U.S. state and local	(1,520		)	1,375			907
Non-U.S.	2,154			2,465			552
	634			3,840			1,459
Deferred tax provision (benefit):
U.S. federal	5,785			5,359			11,173
U.S. state and local	(3,550		)	2,877			1,554
Non-U.S.	(12,273		)	(8,315		)	(4,410		)
	(10,038		)	(79		)	8,317
Income tax provision (benefit)	$	(9,404	)	$	3,761		$	9,776

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of income tax expense (benefit) using the statutory Canadian federal and provincial income tax rate compared with actual income tax expense for the years ended December 31, is as follows:

	2016			2015			2014
Income (loss) from continuing operations before income taxes, equity in non-consolidated affiliates and noncontrolling interest	$	(49,716	)	$	(17,416	)	$	15,109
Statutory income tax rate	26.5		%	26.5		%	26.5		%
Tax expense (benefit) using statutory income tax rate	(13,175		)	(4,615		)	4,004
State and foreign taxes	(94		)	3,524			1,459
Non-deductible stock-based compensation	1,123			665			1,982
Other non-deductible expense	1,848			163			3,075
Change to valuation allowance on items affecting taxable income	6,605			3,565			(643		)
Effect of the difference in federal and statutory rates	(4,579		)	1,906			2,222
Noncontrolling interests	(1,287		)	(2,399		)	(1,826		)
Other, net	155			952			(497		)
Income tax expense (benefit)	$	(9,404	)	$	3,761		$	9,776
Effective income tax rate	18.9		%	(21.6		)%	64.7		%

Schedule of Deferred Tax Assets and Liabilities

The tax effects of significant temporary differences representing deferred tax assets and liabilities at December 31, were as follows:

	2016			2015
Deferred tax assets:
Capital assets and other	$	6,758		$	7,334
Net operating loss carry forwards	44,305			39,454
Interest deductions	12,146			12,266
Refinancing charge	7,413			144
Goodwill and intangibles	179,029			178,835
Stock compensation	2,581			3,033
Pension plan	5,095			3,770
Unrealized foreign exchange	15,237			15,548
Capital loss carry forwards	10,957			10,630
Accounting reserves	7,138			6,701
Gross deferred tax asset	290,659			277,715
Less: valuation allowance	(248,866		)	(247,967		)
Net deferred tax assets	41,793			29,748
Deferred tax liabilities:
Deferred finance charges	(333		)	(323		)
Capital assets and other	(388		)	(797		)
Goodwill amortization	(109,638		)	(100,743		)
Total deferred tax liabilities	(110,359		)	(101,863		)
Net deferred tax asset (liability)	$	(68,566	)	$	(72,115	)
Disclosed as:
Deferred tax assets	$	41,793		$	29,748
Deferred tax liabilities	(110,359		)	(101,863		)
	$	(68,566	)	$	(72,115	)

Schedule Of Changes In Tax Reserve

Changes in the Company’s reserve is as follows:
Balance at December 31, 2013	$	3,073
Charges to income tax expense	—
Balance at December 31, 2014	3,073
Charges to income tax expense	960
Settlement of uncertainty	(428		)
Balance at December 31, 2015	3,605
Charges to income tax expense	(1,261		)
Settlement of uncertainty	(879		)
Balance at December 31, 2016	$	1,465

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Discontinued Operations Discounted Groups, Including Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2016

Discontinued Operations and Disposal Groups [Abstract]

Disposal Groups, Including Discontinued Operations [Table Text Block]

	Years Ended December 31,
		2015			2014
Revenue		$	27,025		$	70,041
Operating loss		(322		)	(4,704		)
Other expense		(752		)	(458		)
Loss on disposal		(5,207		)	(16,098		)
Net loss from discontinued operations		$	(6,281	)	$	(21,260	)

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Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Debt

As of December 31, the Company’s indebtedness was comprised as follows:

	2016			2015
Revolving credit facility	$	54,425		$	—
6.50% Notes due 2024	900,000			—
6.75% Notes due 2020	—			735,000
Original issue premium	—			5,838
Debt issuance costs	(18,420		)	(12,625		)
	936,005			728,213
Obligations under capital leases	431			670
	936,436			728,883
Less:
Current portion	228			470
	$	936,208		$	728,413

Schedule Of Future Principal Repayments Of Long Term Debt Including Capital Lease Obligations

Future principal repayments, including capital lease obligations, for the years ended December 31, and in aggregate, are as follows:

Period	Amount
2016	$	228
2017	91
2018	86
2019	22
2020	54,429
2021 and thereafter	900,000
	$	954,856

Schedule of Future Minimum Lease Payments for Capital Leases

Future minimum capital lease payments for the years ended December 31 and in aggregate, are as follows:

Period	Amount
2016	$	248
2017	102
2018	93
2019	23
2020	5
2021 and thereafter	—
	471
Less: imputed interest	(40		)
	431
Less: current portion	(228		)
	$	203

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Share Capital (Tables)

12 Months Ended

Dec. 31, 2016

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Performance Shares and Time Based Award Activity

The following table summarizes information about time based and financial performance-based restricted stock and restricted stock unit awards granted under the 2005 Incentive Plan, 2008 Key Partner Incentive Plan, 2011 Stock Incentive Plan and 2016 Stock Incentive Plan:

	Performance Based Awards				Time Based Awards
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Balance at December 31, 2013	462,666		$	9.79	913,788		$	12.54
Granted	120,578		25.09		293,705		21.99
Vested	(497,214	)	9.62		(264,478	)	10.88
Forfeited	—		—		(26,874	)	11.52
Balance at December 31, 2014	86,030		$	23.14	916,141		$	16.36
Granted	80,000		21.76		191,155		20.42
Vested	(68,067	)	25.21		(297,794	)	12.35
Forfeited	—		—		(35,000	)	21.69
Balance at December 31, 2015	97,963		$	19.61	774,502		$	18.71
Granted	10,000		14.00		392,500		12.53
Vested	(17,963	)	10.02		(380,367	)	16.02
Forfeited	—		—		(46,000	)	20.39
Balance at December 31, 2016	90,000		$	20.90	740,635		$	16.71

Schedule of Share-based Compensation, Stock Options, Activity

Information related to share option transactions grant under all plans over the past three years is summarized as follows:

	Options Outstanding			Options Exercisable			Non Vested Options
	Number Outstanding	Weighted Average Price per Share		Number Outstanding	Weighted Average Price per Share
Balance at December 31, 2013	112,500	$	6.03	112,500	$	6.03	—
Vested	—	—					—
Granted	—	—					—
Exercised	—	—					—
Expired and cancelled	—	—					—
Balance at December 31, 2014	112,500	$	5.70	112,500	$	5.70	—
Vested	—	—					—
Granted	—	—					—
Exercised	37,500	4.72					—
Expired and cancelled	—	—					—
Balance at December 31, 2015	75,000	$	5.28	75,000	$	5.28	—
Vested	—	—					—
Granted	—	—					—
Exercised	37,500	5.97					—
Expired and cancelled	—	—					—
Balance at December 31, 2016	37,500	$	5.83	37,500	$	5.83	—

Employee Stock Option

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Activity

Share options outstanding as of December 31, 2016 are summarized as follows:

	Options Outstanding				Options Exercisable
Exercise Price	Outstanding Number	Weighted Average Contractual Life	Weighted Average Price per Share		Exercisable Number	Weighted Average Price per Share		Weighted Average Contractual Life
$5.83	37,500	0.50	$	5.83	37,500	$	5.83	0.50

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value, Inputs, Level 1

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis

The following tables present certain information for our financial assets that is measured at fair value on a recurring basis at December 31:

	Level 1 2016		Level 1 2015
	Carrying Amount	Fair Value	Carrying Amount	Fair Value
Liabilities:
6.50% Senior Notes due 2024	900,000	812,250	—	—
6.75% Senior Notes due 2020	—	—	740,838	765,319

Fair Value, Inputs, Level 3

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis

The following table presents changes in deferred acquisition consideration for the years ended December 31:

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	2016			2015
Beginning balance of contingent payments	$	306,734		$	172,227
Payments (1)	(105,169		)	(77,301		)
Additions (2)	16,132			174,530
Redemption value adjustments (3)	13,930			41,636
Other (4)	(6,412		)	—
Foreign translation adjustment	(461		)	(4,358		)
Ending balance of contingent payments	$	224,754		$	306,734

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Segment Information (Tables)

12 Months Ended

Dec. 31, 2016

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

	Years Ended December 31,
	2016			2015			2014
Revenue:
Global Integrated Agencies	$	696,410		$	652,987		$	600,150
Domestic Creative Agencies	85,953			91,658			83,196
Specialist Communications	170,285			153,920			124,938
Media Services	131,498			132,419			120,852
All Other	301,639			295,272			294,376
Corporate	—			—			—
Total	$	1,385,785		$	1,326,256		$	1,223,512
Segment operating income (loss):
Global Integrated Agencies	$	58,505		$	66,161		$	67,290
Domestic Creative Agencies	16,583			17,535			14,266
Specialist Communications	1,939			18,047			16,242
Media Services	6,154			20,116			29,706
All Other	9,368			15,423			28,322
Corporate	(44,118		)	(65,172		)	(68,077		)
Total	$	48,431		$	72,110		$	87,749
Other Income (Expense):
Other income, net	414			7,238			689
Foreign exchange gain (loss)	(213		)	(39,328		)	(18,482		)
Interest expense and finance charges, net	(98,348		)	(57,436		)	(54,847		)
Income (loss) continuing operations before income taxes and equity in earnings of non-consolidated affiliates	(49,716		)	(17,416		)	15,109
Income tax expense (benefit)	(9,404		)	3,761			9,776
Income (loss) from continuing operations before equity in earnings of non-consolidated affiliates	(40,312		)	(21,177		)	5,333
Equity in earnings (loss) of non-consolidated affiliates	(309		)	1,058			1,406
Income (loss) from continuing operations	(40,621		)	(20,119		)	6,739
Income (loss) from discontinued operations attributable to MDC Partners Inc., net of taxes	—			(6,281		)	(21,260		)
Net income (loss)	(40,621		)	(26,400		)	(14,521		)
Net income attributable to the noncontrolling interest	(5,218		)	(9,054		)	(6,890		)
Net income (loss) attributable to MDC Partners Inc.	$	(45,839	)	$	(35,454	)	$	(21,411	)

	Years Ended December 31,
	2016		2015		2014
Depreciation and amortization:
Global Integrated Agencies	$	21,447	$	20,599	$	17,410
Domestic Creative Agencies	1,653		1,855		1,809
Specialist Communications	6,637		11,201		8,272
Media Services	5,718		4,660		6,113
All Other	9,406		12,134		11,783
Corporate	1,585		1,774		1,785
Total	$	46,446	$	52,223	$	47,172
Stock-based compensation:
Global Integrated Agencies	$	12,141	$	6,981	$	5,043
Domestic Creative Agencies	634		644		394
Specialist Communications	3,629		1,510		2,050
Media Services	301		471		918
All Other	1,773		5,450		3,628
Corporate	2,525		2,740		5,663
Total	$	21,003	$	17,796	$	17,696
Capital expenditures:
Global Integrated Agencies	$	16,439	$	17,043	$	19,669
Domestic Creative Agencies	1,055		1,321		818
Specialist Communications	2,741		1,311		632
Media Services	5,110		825		475
All Other	4,054		2,704		3,485
Corporate	33		371		1,337
Total	$	29,432	$	23,575	$	26,416

Schedule Of Fixed Assets Goodwill Intangibles Net

A summary of the Company’s long-lived assets, comprised of fixed assets, goodwill and intangibles, net, as at December 31, is set forth in the following table.

	United States		Canada		Other		Total
Long-lived Assets
2016	$	67,617	$	5,887	$	4,873	$	78,377
2015	$	52,305	$	6,817	$	4,435	$	63,557
Goodwill and Intangible Assets
2016	$	736,334	$	121,987	$	71,509	$	929,830
2015	$	798,746	$	122,821	$	21,116	$	942,683

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

A summary of the Company’s revenue as at December 31 is set forth in the following table.

	United States		Canada		Other		Total
Revenue:
2016	$	1,103,714	$	124,101	$	157,970	$	1,385,785
2015	$	1,085,051	$	129,039	$	112,166	$	1,326,256
2014	$	993,474	$	150,390	$	79,648	$	1,223,512

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Commitments, Contingencies and Guarantees (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

Minimum rental commitments for the rental of office and production premises and equipment under non-cancellable leases net of sublease income, some of which provide for rental adjustments due to increased property taxes and operating costs, for the years ending December 31, 2017 and thereafter, are as follows:

Period	Amount
2017	$	57,294
2018	55,445
2019	51,858
2020	49,068
2021	43,697
2022 and thereafter	134,485
	$	391,847

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Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2016

Dec. 31, 2015

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit Cost Not yet Recognized

Net periodic pension cost consists of the following components for the years ended December 31:

	Pension Benefits			Pension Benefits
	2016			2015
Service cost	$	—		$	—
Interest cost on benefit obligation	1,855			1,864
Expected return on plan assets	(1,863		)	(2,069		)
Curtailment and settlements	929			—
Amortization of prior service cost	—			—
Amortization of actuarial (gains) losses	137			103
Net periodic benefit cost (benefit)	$	1,058		$	(102	)

Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss)

Other changes in plan assets and benefit obligation recognized in Other Comprehensive Loss consist of the following components for the years ended December 31:

	Pension Benefits			Pension Benefits
	2016			2015
Curtailment/settlement	$	—		$	—
Current year actuarial (gain) loss	3,238			526
Amortization of actuarial gain (loss)	(137		)	(103		)
Current year prior service (credit) cost	—			—
Amortization of prior service credit (cost)	—			—
Amortization of transition asset (obligation)	—			—
Total recognized in other comprehensive (income) loss	$	3,101		$	423
Total recognized in net periodic benefit cost and other comprehensive (income) loss	4,159			$	321

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets

The following table summarizes the change in benefit obligations and fair values of plan assets for the years ended December 31:

	Pension Benefits			Pension Benefits
	2016			2015
Change in benefit obligation:
Benefit obligation, Beginning balance	$	40,296		$	43,799
Service Cost	—			—
Interest Cost	1,855			1,864
Change in Mortality	—			—
Plan amendments	—			—
Curtailment/settlement	—			—
Actuarial (gains) losses	2,502			(2,774		)
Benefits paid	(3,931		)	(2,593		)
Benefit obligation, Ending balance	40,722			40,296
Change in plan assets:
Fair value of plan assets, Beginning balance	25,190			28,360
Actual return on plan assets	198			(1,232		)
Employer contributions	3,025			655
Benefits paid	(3,931		)	(2,593		)
Fair value of plan assets, Ending balance	24,482			25,190
Unfunded status	$	16,240		$	15,106

Schedule of Amounts Recognized in Balance Sheet

	Pension Benefits		Pension Benefits
	2016		2015
Non-current liability	$	16,240	$	15,106
Net amount recognized	$	16,240	$	15,106

Schedule of Amounts Recognized in Other Comprehensive Income (Loss)

Amounts recognized, net of tax, in Accumulated Other Comprehensive Loss consists of the following components for the years ended December 31:

	Pension Benefits		Pension Benefits
	2016		2015
Accumulated net actuarial losses	$	12,320	$	9,219
Accumulated prior service cost	—		—
Accumulated transition obligation	—		—
Amount recognized, net of tax	$	12,320	$	9,219

Schedule Of Assumptions Used To Determine Benefit Obligations

eighted average assumptions were used to determine benefit obligations as of December 31:

	Pension Benefits		Pension Benefits
	2016		2015
Discount rate	4.32	%	4.69	%
Rate of compensation increase	N/A		N/A

Schedule Of Assumptions Used To Determine Net Periodic Cost

eighted average assumptions were used to determine net periodic costs at December 31:

	Pension Benefits		Pension Benefits
	2016		2015
Discount rate	4.69	%	4.38	%
Expected return on plan assets	7.40	%	7.40	%
Rate of compensation increase	N/A		N/A

Schedule of Changes in Fair Value of Plan Assets

The Defined Benefit plan assets fall into any of three fair value classifications as defined in the FASB ASC Topic 820, Fair Value Measurements. There are no Level 3 assets held by the plan. The fair value of the plan assets as of December 31 is as follows:

	December 31, 2016		Level 1		Level 2		Level 3
Asset Category:
Money Market Fund – Short Term Investments	$	1,687	$	1,687	$	—	$	—
Common Stock	—		—		—		—
Corporate Bonds	—		—		—		—
Mutual Funds	22,795		22,795		—		—
Foreign Stock	—		—		—		—
Total	$	24,482	$	24,482	$	—	$	—

	December 31, 2015		Level 1		Level 2		Level 3
Asset Category:
Money Market Fund – Short Term Investments	$	1,580	$	145	$	1,435	$	—
Common Stock	9,479		9,479		—		—
Corporate Bonds	3,834		—		3,834		—
Mutual Funds	10,006		10,006		—		—
Foreign Stock	291		291		—		—
Total	$	25,190	$	19,921	$	5,269	$	—

Schedule of Allocation of Plan Assets

The pension plans weighted-average asset allocation for the years ended December 31, 2016 and 2015 are as follows:

	Target Allocation		Actual Allocation		Actual Allocation
	2016		2016		2015
Asset Category:
Equity Securities	68.0	%	65.5	%	68.0	%
Debt Securities	31.0	%	27.6	%	25.7	%
Cash/Cash Equivalents and Short Term Investments	1.0	%	6.9	%	6.3	%
	100	%	100	%	100	%

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year

The estimated amounts that will be amortized in 2017 are as follows:

	Pension Benefits
Estimated Amortization:	2017
Prior service cost (credit) amortization	$	—
Net loss amortization	222
Total	$	222

Schedule of Expected Benefit Payments

The following estimated benefit payments, which reflect expected future service, as appropriate, are expected to be paid in the years ending December 31:

Period	Amount
2017	$	1,613
2018	$	1,762
2019	$	1,858
2020	$	2,028
2021	$	2,020
2022 and thereafter	$	11,269

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Changes in Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2016

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The changes in accumulated other comprehensive income (loss) for the year ended December 31 were:

	Defined Benefit Pension			Foreign Currency Translation			Total
Balance December 31, 2014	$	(8,796	)	$	1,044		$	(7,752	)
Other comprehensive income before reclassifications	—			14,432			14,432
Amounts reclassified from accumulated other comprehensive income (loss)	(423		)	—			(423		)
Other comprehensive income (loss)	$	(423	)	$	14,432		$	14,009
Balance December 31, 2015	$	(9,219	)	$	15,476		$	6,257
Other comprehensive income before reclassifications	—			(4,980		)	(4,980		)
Amounts reclassified from accumulated other comprehensive income (loss)	(3,101		)	—			(3,101		)
Other comprehensive income (loss)	(3,101		)	(4,980		)	(8,081		)
Balance December 31, 2016	$	(12,320	)	$	10,496		$	(1,824	)

Schedule of Defined Benefit Plans Disclosures

Reclassifications for the years ended December 31 were as follows:

	2016		2015
Amortization of defined pension plan:
Prior service cost	$	—	$	—
Actuarial losses	137		103
Net periodic benefit cost	137		103
Income tax expense	55		41
Net of tax	$	82	$	62

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Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

20. Quarterly Results of Operations (Unaudited)

The following table sets forth a summary of the Company’s consolidated unaudited quarterly results of operations for the years ended December 31, in thousands of dollars, except per share amounts.

	Quarters
	First			Second		Third			Fourth
Revenue:
2016	$	309,042		$	337,047	$	349,254		$	390,442
2015	$	302,222		$	336,606	$	328,415		$	359,013
Cost of services sold:
2016	$	211,446		$	228,835	$	235,659		$	260,193
2015	$	210,419		$	225,042	$	212,925		$	231,330
Income (loss) from continuing operations:
2016	$	(22,772	)	$	2,089	$	(31,081	)	$	11,143
2015	$	(22,941	)	$	31,548	$	(4,690	)	$	(24,036	)
Net income (loss) attributable to MDC Partners Inc.:
2016	$	(23,631	)	$	835	$	(32,140	)	$	9,097
2015	$	(31,615	)	$	30,036	$	(8,128	)	$	(25,747	)
Income (loss) per common share:
Basic
Continuing operations:
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17
2015	$	(0.51	)	$	0.58	$	(0.14	)	$	(0.52	)
Net income (loss):
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17
2015	$	(0.64	)	$	0.60	$	(0.16	)	$	(0.52	)
Diluted
Continuing operations:
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17		(1)
2015	$	(0.51	)	$	0.57	$	(0.14	)	$	(0.52	)
Net income (loss):
2016	$	(0.47	)	$	0.02	$	(0.62	)	$	0.17		(1)
2015	$	(0.64	)	$	0.60	$	(0.16	)	$	(0.52	)

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Basis of Presentation Basis of Presentation (Details)	12 Months Ended
	Dec. 31, 2016 segment
Segment Reporting Information [Line Items]
Number of reportable segments	4

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Significant Accounting Policies - Redeemable Noncontrolling Interest (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Redeemable Noncontrolling Interest [Line Items]
Consolidated Accounts Receivable Percentage	10.00%	10.00%
Redeemable Noncontrolling Interest [Roll Forward]
Redeemable Noncontrolling Interest, Equity, Redemption Value	$ 69,471
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests			$ 17,831
Increase in noncontrolling interests from business acquisitions	8,936	$ (51,488)	50,118
Redeemable Noncontrolling Interest, Equity, Redemption Value	60,180	69,471
Redeemable Noncontrolling Interest [Member]
Redeemable Noncontrolling Interest [Roll Forward]
Redeemable Noncontrolling Interest, Equity, Redemption Value	69,471	194,951	148,534
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	1,708	155,042	4,820
Increase in noncontrolling interests from business acquisitions	2,274	7,703	13,327
Noncontrolling Interest, Change in Redemption Value	(9,604)	22,809	38,850
Currency translation adjustments	(253)	(950)	(940)
Redeemable Noncontrolling Interest, Equity, Redemption Value	$ 60,180	$ 69,471	$ 194,951

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Significant Accounting Policies - Textual (Details)								3 Months Ended			12 Months Ended
	May 01, 2024	Oct. 01, 2016	May 03, 2016	Oct. 01, 2015	Oct. 23, 2014 USD ($)	Mar. 20, 2013 USD ($)	Mar. 28, 2012	Dec. 31, 2016 USD ($) Clients reportable_segment	Sep. 30, 2016 USD ($) reportable_segment	Dec. 31, 2015 USD ($) Clients	Dec. 31, 2016 USD ($) Clients investment $ / shares shares	Dec. 31, 2015 USD ($) Clients investment reportable_segment $ / shares shares	Dec. 31, 2014 USD ($) Clients investment $ / shares shares	Mar. 23, 2016	Dec. 31, 2013 USD ($)
Significant Accounting Policies [Line Items]
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability											$ 2,108,000	$ 1,903,000	$ 2,646,000
Impact of Restatement on Earnings Per Share, Basic | $ / shares											$ 0.04	$ 0.04	$ 0.06
Deferred Tax Liability, Prior Period Correction								$ 6,916,000		$ 9,016,000	$ 6,916,000	$ 9,016,000
Increase (Decrease) in Book Overdrafts											$ 7,000	1,000	$ 38,000
Deferred Tax Assets, Gross, Current										14,381,000		$ 14,381,000
Earnings Per Share, Increase (Decrease) Due To Non-Controlling Dividend As A Result Of Redeemable Redemption Value In Excess of Fair Value | $ / shares											$ 0	$ 0	$ 0
Long-Term Growth Rate Assumed in Annual Goodwill Impairment Test		3.00%		3.00%
Debt Issuance Costs, Net								$ 18,420,000		12,625,000	$ 18,420,000	$ 12,625,000
Deferred Tax Assets, Net, Current										$ 263,000		263,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability											$ 8,227,000	$ 38,887,000	$ 18,652,000
Clients exceeding consolidated accounts receivable percentage | Clients								0		0	0	0
Number of Reporting Units											31	13
Consolidated accounts receivable percentage								10.00%		10.00%	10.00%	10.00%
Clients exceeding consolidated largest client revenue | Clients											0	0	0
Consolidated largest client revenue											10.00%	10.00%	10.00%
Equity Method Investment, Amount Sold											$ 2
Distributions from non-consolidated affiliates											7,402,000	$ 0	$ 3,409,000
Cost method investments								$ 10,132,000		$ 11,763,000	10,132,000	11,763,000
Goodwill, Impairment Loss											48,524,000	0	0
Business combination, acquisition related costs											2,640,000	2,912,000	$ 6,133,000
Assets								1,577,378,000		1,577,625,000	1,577,378,000	1,577,625,000
Liabilities								$ 2,026,674,000		2,004,246,000	$ 2,026,674,000	$ 2,004,246,000
Stock Issued During Period, Shares, New Issues | shares											0	0	0
Pension expense											$ 10,026,000	$ 6,731,000	$ 7,503,000
Proceeds from Sale of Equity Method Investments											4,023
Equity Method Investment, Realized Gain (Loss) on Disposal											623
Impact of Restatement on Opening Retained Earnings, before Tax															$ 13,568,000
Performance Shares
Significant Accounting Policies [Line Items]
Share-based compensation, gross											$ 140	1,741	3,026
Real Estate Joint Venture [Member]
Significant Accounting Policies [Line Items]
Equity method investment, ownership percentage								30.00%			30.00%
Minimum
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life											3 years
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount		5.00%		7.00%
Weighted Average Cost Of Capital, Annual Goodwill Impairment Test		10.39%		8.92%
Maximum
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life											7 years
Equity method investment, ownership percentage								50.00%			50.00%
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount		100.00%		100.00%
Weighted Average Cost Of Capital, Annual Goodwill Impairment Test		13.45%		11.95%
Doner
Significant Accounting Policies [Line Items]
Variable interest entity, qualitative or quantitative information, ownership percentage							30.00%
Ownership interest percentage increase on exercise of option							70.00%
Assets								$ 102,456,000		122,558,000	$ 102,456,000	122,558,000
Liabilities								57,622,000		86,047,000	57,622,000	86,047,000
Contingent Payment [Member]
Significant Accounting Policies [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability								$ (9,211)		$ 41,913	$ 7,972,000	36,344,000	$ 16,467,000
Six Point Five Zero Percentage Notes [Domain]
Significant Accounting Policies [Line Items]
Debt Instrument, Interest Rate, Stated Percentage								6.50%			6.50%			6.50%
Six Point Seven Five Percentage Notes [Member]
Significant Accounting Policies [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						6.75%		6.75%			6.75%		6.75%		6.75%
Debt Instrument, Maturity Year						2020
Notes due 2024 [Domain]
Significant Accounting Policies [Line Items]
Debt Instrument, Interest Rate, Stated Percentage								6.50%			6.50%
Interest Expense [Member] | Fixed Payment [Member]
Significant Accounting Policies [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability											$ 255,000	$ 2,543,000	$ 2,186,000
Equity Method Investments [Member]
Significant Accounting Policies [Line Items]
Number of investments sold | investment												1
Proceeds from Sale of Equity Method Investments												$ 2,094
Equity Method Investment, Realized Gain (Loss) on Disposal												1,086
Cost-method Investments [Member]
Significant Accounting Policies [Line Items]
Step acquisition gain on sale of ownership percentage											$ 1,309
Cost-method Investments, Realized Gain (Loss)												$ 5,440
Number of investments sold | investment											3	6	2
Proceeds from sale of other investments											$ 4,074	$ 11,364	$ 8,248,000
Quantitative Assessment [Member]
Significant Accounting Policies [Line Items]
Number of Reporting Units												13
Strategic Communications [Member]
Significant Accounting Policies [Line Items]
Goodwill, Impairment Loss								$ 18,893
All Other [Domain]
Significant Accounting Policies [Line Items]
Goodwill, Impairment Loss											$ 29,631,000
All Other [Domain] | Experiential [Member]
Significant Accounting Policies [Line Items]
Goodwill, Impairment Loss									$ 28,000
Reporting Units, Goodwill Impairment Test Performed During Interim Period | reportable_segment									1
All Other [Domain] | Immaterial [Member]
Significant Accounting Policies [Line Items]
Goodwill, Impairment Loss									$ 2,000
Reporting Units, Goodwill Impairment Test Performed During Interim Period | reportable_segment									1
All Other [Domain] | Strategic Communications [Member]
Significant Accounting Policies [Line Items]
Reporting Units Impaired, Annual Goodwill Impairment Test | reportable_segment								1
Wells Fargo Capital Finance, Llc [Member]
Significant Accounting Policies [Line Items]
Debt Instrument, Maturity Date			May 03, 2021		Sep. 30, 2019
Wells Fargo Capital Finance, Llc [Member] | Revolving Credit Facility [Member]
Significant Accounting Policies [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					$ 325,000,000	$ 225,000,000
Scenario, Forecast [Member] | Wells Fargo Capital Finance, Llc [Member] | Six Point Five Zero Percentage Notes [Domain]
Significant Accounting Policies [Line Items]
Debt Instrument, Maturity Year	2024

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Loss per Common Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	$ 11,143	$ (31,081)	$ 2,089	$ (22,772)	$ (24,036)	$ (4,690)	$ 31,548	$ (22,941)	$ (40,621)	$ (20,119)	$ 6,739
Numerator
Net income attributable to the noncontrolling interests									(5,218)	(9,054)	(6,890)
Income (Loss) from Continuing Operations Attributable to Parent									(45,839)	(29,173)	(151)
Effect of dilutive securities									0	0	0
Income (Loss) from Continuing Operations Attributable to Parent, Diluted									$ (45,839)	$ (29,173)	$ (151)
Denominator
Denominator for basic loss per common share – weighted average common shares									51,345,807	49,875,282	49,545,350
Effect of dilutive securities:
Dilutive potential common shares									0	0	0
Denominator for diluted loss per common share – adjusted weighted shares and assumed conversions									51,345,807	49,875,282	49,545,350
Basic and Diluted loss per common share from continuing operations									$ (0.89)	$ (0.58)	$ 0.00

XML

Loss per Common Share - Textual (Details) - shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Antidilutive securities excluded from computation of earnings per share, amount	1,391,456	947,465	1,114,681
Contingent Restricted Stock Units (RSUs) [Member]
Antidilutive securities excluded from computation of earnings per share, amount	523,321

XML

Acquisitions - Textual (Details)				12 Months Ended
	Jul. 01, 2016 USD ($) shares	Jul. 01, 2016 CAD shares	Mar. 28, 2012	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares	Dec. 31, 2014 USD ($)	Apr. 01, 2016	Oct. 31, 2015	May 01, 2015	Aug. 18, 2014	Aug. 01, 2014	Jul. 31, 2014	Jun. 03, 2014	Feb. 14, 2014	Jan. 01, 2014
Business Acquisition [Line Items]
Pro forma revenue				$ 1,426,770,000	$ 1,398,756,000
Pro forma net income (loss)				(39,756,000)	(34,398,000)
Goodwill				$ 24,778,000	43,654,000
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests						$ 17,831,000
Intangible assets amortization period (years)				7 years
Ownership percentage by parent				100.00%
Adjustments to deferred acquisition consideration included in share-based compensation				$ 10,341	$ 9,359	7,802
Stock Issued During Period, Value, Acquisitions				$ 34,219,000
Basic and Diluted Earnings Per Share, Pro Forma | $ / shares				$ (0.76)	$ (0.66)
Aggregate 2016 Step Up Transactions [Member]
Business Acquisition [Line Items]
Cost of acquired entity, cash paid				$ 1,581
Business Combinations, Assets Relinquished by Acquirer				428
Business Combinations, Liabilities Relinquished Previously due to Acquiree				94
Aggregate 2015 Acquisitions [Domain]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred					$ 55,279
Cost of acquired entity, cash paid					23,000
Business Combination, Consideration Transferred, Liabilities Incurred					32,279
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					16,721
Goodwill					$ 43,654
Intangible assets amortization period (years)					6 years 4 months
Business Acquisition, Goodwill, Expected Tax Deductible Amount					$ 9,720
Aggregate 2015 Step Up Transactions [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred					200,822
Cost of acquired entity, cash paid					37,467
Business Combination, Consideration Transferred, Liabilities Incurred					163,355
Aggregate 2014 Acquisitions
Business Acquisition [Line Items]
Business Combination, Consideration Transferred						151,202,000
Cost of acquired entity, cash paid						67,236,000
Business Combination, Consideration Transferred, Liabilities Incurred						83,966,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles						64,733,000
Goodwill						146,806,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount						$ 149,232,000
Aggregate 2014 Acquisitions | Minimum
Business Acquisition [Line Items]
Intangible assets amortization period (years)						5 years
Aggregate 2014 Acquisitions | Maximum
Business Acquisition [Line Items]
Intangible assets amortization period (years)						6 years
Trapeze Media Limited | Union Advertising Canada LC
Business Acquisition [Line Items]
Step acquisition gain on sale of ownership percentage						$ 908,000
Forsman & Bodenfors AB [Domain]
Business Acquisition [Line Items]
Pro forma revenue				39,569,000
Pro forma net income (loss)				3,815,000
Percentage of voting interests acquired	100.00%
Business Combination, Consideration Transferred	$ 49,837
Business Combination, Consideration Transferred, Liabilities Incurred				18,857
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	36,698
Goodwill	$ 24,778
Intangible assets amortization period (years)	10 years 9 months	10 years 9 months
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value	$ 5,514
Business Acquisition, Goodwill, Expected Tax Deductible Amount	0
Deferred Taxes, Business Combination, Valuation Allowance, Available to Reduce Intangible Assets	8,074
Business Combination, Contingent Consideration, Liability	15,618
Forsman & Bodenfors AB [Domain] | Minimum
Business Acquisition [Line Items]
Business Combination, Consideration Transferred | CAD		CAD 35,000
Forsman & Bodenfors AB [Domain] | Maximum
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 55,000
Y Media Labs LLC [Domain] | Aggregate 2015 Acquisitions [Domain]
Business Acquisition [Line Items]
Percentage of voting interests acquired									60.00%
Unique Influence LLC [Domain] | Aggregate 2015 Acquisitions [Domain]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Net Assets Acquired								100.00%
Luntz Global Partners LLC
Business Acquisition [Line Items]
Percentage of voting interests acquired							40.00%
Luntz Global Partners LLC | Aggregate 2014 Acquisitions
Business Acquisition [Line Items]
Percentage of voting interests acquired															60.00%
Kingsdale Partners, LP | Aggregate 2014 Acquisitions
Business Acquisition [Line Items]
Percentage of voting interests acquired														65.00%
The House Worldwide Ltd | Aggregate 2014 Acquisitions
Business Acquisition [Line Items]
Percentage of voting interests acquired													100.00%
Hunter PR LLC | Aggregate 2014 Acquisitions
Business Acquisition [Line Items]
Percentage of voting interests acquired											65.00%
Albion Brand Communications Limited | Aggregate 2014 Acquisitions
Business Acquisition [Line Items]
Percentage of voting interests acquired										75.00%
Trapeze Media Limited
Business Acquisition [Line Items]
Ownership percentage by parent												18.00%
Doner
Business Acquisition [Line Items]
Percentage of voting interests acquired			70.00%
Variable interest entity, qualitative or quantitative information, ownership percentage			30.00%
Additional Paid-in Capital
Business Acquisition [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests						8,992,000
Additional Paid-in Capital | Aggregate 2016 Step Up Transactions [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests				22,775
Additional Paid-in Capital | Aggregate 2015 Step Up Transactions [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests					42,780
Noncontrolling Interest [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests						8,839,000
Noncontrolling Interest [Member] | Aggregate 2016 Step Up Transactions [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests				19,354
Noncontrolling Interest [Member] | Aggregate 2015 Step Up Transactions [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests					8,708
Noncontrolling Interest [Member] | Aggregate 2014 Acquisitions
Business Acquisition [Line Items]
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value						50,552,000
Redeemable Noncontrolling Interest [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests				1,708,000	155,042,000	4,820,000
Redeemable Noncontrolling Interest [Member] | Aggregate 2016 Step Up Transactions [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests				1,005
Redeemable Noncontrolling Interest [Member] | Aggregate 2015 Acquisitions [Domain]
Business Acquisition [Line Items]
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value					1,999
Redeemable Noncontrolling Interest [Member] | Aggregate 2015 Step Up Transactions [Member]
Business Acquisition [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests					149,335
Redeemable Noncontrolling Interest [Member] | Aggregate 2014 Acquisitions
Business Acquisition [Line Items]
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value						13,327,000
Contingent payment [Domain] | Aggregate 2016 Step Up Transactions [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred				4,052
Business Combination, Deferred Stock-based Compensation, Discounted				2,393
Fixed payments [Member] | Aggregate 2016 Step Up Transactions [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred				$ 467
Common Class A | Common Stock [Member]
Business Acquisition [Line Items]
Stock Issued During Period, Shares, Acquisitions | shares				1,900,000
Common Class A | Common Stock [Member] | Forsman & Bodenfors AB [Domain]
Business Acquisition [Line Items]
Stock Issued During Period, Shares, Acquisitions | shares	1,900,000	1,900,000
Stock Issued During Period, Value, Acquisitions	$ 34,219			$ 34,219,000	$ 0	$ 0
Contractual redemption right [Member] | Forsman & Bodenfors AB [Domain]
Business Acquisition [Line Items]
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value	$ 2,275

XML

Acquisitions - Schedule of Net Income (Loss) Attributable to Parent and Transfers (to) from Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Noncontrolling Interest [Line Items]
Net loss attributable to MDC Partners Inc.	$ 9,097	$ (32,140)	$ 835	$ (23,631)	$ (25,747)	$ (8,128)	$ 30,036	$ (31,615)	$ (45,839)	$ (35,454)	$ (21,411)
Transfers (to) from the noncontrolling interests
Change from net loss attributable to MDC Partners Inc. and transfers (to) from noncontrolling interests									(23,063)	(78,234)	(30,403)
Additional Paid-in Capital [Member]
Transfers (to) from the noncontrolling interests
Increase (Decrease) in Noncontrolling Interests from Business Acquisitions									$ 22,776	$ (42,780)	$ (8,992)

XML

Fixed Assets - Schedule of Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Cost	$ 183,510	$ 160,111
Accumulated Depreciation	(105,133)	(96,554)
Net Book Value	78,377	63,557
Computers, furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Cost	91,909	87,213
Accumulated Depreciation	(64,030)	(62,901)
Net Book Value	27,879	24,312
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Cost	91,601	72,898
Accumulated Depreciation	(41,103)	(33,653)
Net Book Value	$ 50,498	$ 39,245

XML

Fixed Assets - Textual (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Depreciation	$ 22,293	$ 18,871	$ 16,462
Capital Lease Obligations
Property, Plant and Equipment [Line Items]
Capital leased assets, gross	1,967	1,959
Capital leases, lessee balance sheet, assets by major class, accumulated depreciation	$ 1,316	$ 1,378

XML

Accrued and Other Liabilities - Schedule of Changes in Accrued and Other Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accrued Liabilities and Other Liabilities [Roll Forward]
Beginning balance	$ 5,473	$ 6,014	$ 5,210
Income attributable to noncontrolling interests	5,218	9,054	6,890
Distributions to noncontrolling interests	(7,772)	(9,503)	(6,523)
Other	1,235	(92)	437
Ending balance	$ 4,154	$ 5,473	$ 6,014

XML

Accrued and Other Liabilities - Textual (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accrued Liabilities and Other Liabilities [Abstract]
Accrued media cost, current	$ 201,872	$ 187,540
Trust Liability, Current	5,341	5,122
Accrued and Other Liabilities Attributable To Noncontrolling Interest	$ 4,154	$ 5,473	$ 6,014	$ 5,210

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Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Beginning Balance	$ 870,301,000	$ 851,373,000
Acquired goodwill	24,778,000	43,654,000
Goodwill, Impairment Loss	(764,000)		$ (15,564)
Goodwill, Purchase Accounting Adjustments		(2,428,000)
Goodwill, Impairment Loss	(48,524,000)	0	0
Goodwill, Transfers	0
Foreign currency translation	(1,032,000)	(22,298,000)
Ending Balance	844,759,000	870,301,000	851,373,000
Reportable Segment [Domain]
Goodwill [Roll Forward]
Beginning Balance	142,286,000	136,033,000
Acquired goodwill	0	6,253,000
Goodwill, Impairment Loss	0
Goodwill, Purchase Accounting Adjustments		0
Goodwill, Impairment Loss	0
Goodwill, Transfers	34,400,000
Foreign currency translation	0	0
Ending Balance	176,686,000	142,286,000	136,033,000
All Other [Domain]
Goodwill [Roll Forward]
Beginning Balance	229,607,000	209,632,000
Acquired goodwill	0	37,401,000
Goodwill, Impairment Loss	(764,000)
Goodwill, Purchase Accounting Adjustments		(684,000)
Goodwill, Impairment Loss	(29,631,000)
Goodwill, Transfers	0
Foreign currency translation	2,692,000	(16,742,000)
Ending Balance	201,904,000	229,607,000	209,632,000
Global Integrated Agencies [Member]
Goodwill [Roll Forward]
Beginning Balance	364,159,000	370,094,000
Acquired goodwill	24,778,000	0
Goodwill, Impairment Loss	0
Goodwill, Purchase Accounting Adjustments		(998,000)
Goodwill, Impairment Loss	0
Goodwill, Transfers	(34,400,000)
Foreign currency translation	(3,821,000)	(4,937,000)
Ending Balance	350,716,000	364,159,000	370,094,000
Domestic Creative Agencies [Member]
Goodwill [Roll Forward]
Beginning Balance	36,671,000	37,117,000
Acquired goodwill	0	0
Goodwill, Impairment Loss	0
Goodwill, Purchase Accounting Adjustments		133,000
Goodwill, Impairment Loss	0
Goodwill, Transfers	0
Foreign currency translation	91,000	(579,000)
Ending Balance	36,762,000	36,671,000	37,117,000
Specialist Communications [Member]
Goodwill [Roll Forward]
Beginning Balance	97,578,000	98,497,000
Acquired goodwill	0	0
Goodwill, Impairment Loss	0
Goodwill, Purchase Accounting Adjustments		(879,000)
Goodwill, Impairment Loss	(18,893,000)
Goodwill, Transfers	0
Foreign currency translation	6,000	(40,000)
Ending Balance	$ 78,691,000	$ 97,578,000	$ 98,497,000

XML

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Intangibles:
Trademarks (indefinite life)	$ 17,780	$ 17,780
Intangible assets, gross	182,844	187,337
Less accumulated amortization	(97,773)	(114,955)
Total intangible assets-net	85,071	72,382
Other Intangible Assets
Intangibles:
Intangible assets, gross	43,656	33,638
Less accumulated amortization	(17,341)	(17,351)
Intangible assets, net	26,315	16,287
Customer Relationships
Intangibles:
Intangible assets, gross	121,408	135,919
Less accumulated amortization	(80,432)	(97,604)
Intangible assets, net	$ 40,976	$ 38,315

XML

Goodwill and Intangible Assets - Textual (Details)	3 Months Ended		12 Months Ended
	Dec. 31, 2016 USD ($) reportable_segment	Sep. 30, 2016 USD ($) reportable_segment	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Goodwill [Line Items]
Goodwill, impaired, accumulated impairment loss	$ 95,407,000		$ 95,407,000
Goodwill, Impairment Loss			$ 764,000		$ 15,564
Goodwill, Purchase Accounting Adjustments				$ (2,428,000)
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			7 years
Amortization of intangibles			$ 24,153,000	33,352,000	30,710,000
Goodwill, Impairment Loss			48,524,000	0	0
Indefinite-lived Intangible Assets [Member]
Goodwill [Line Items]
Amortization of intangibles			$ 21,726,000	30,024,000	$ 29,749,000
Customer Relationships
Goodwill [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			6 years
Other Intangible Assets
Goodwill [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			8 years
All Other [Domain]
Goodwill [Line Items]
Goodwill, Impairment Loss			$ 764,000
Goodwill, Purchase Accounting Adjustments				$ (684,000)
Goodwill, Impairment Loss			$ 29,631,000
Experiential [Member] | All Other [Domain]
Goodwill [Line Items]
Reporting Units, Goodwill Impairment Test Performed During Interim Period | reportable_segment		1
Goodwill, Impairment Loss		$ 28,000
Immaterial [Member] | All Other [Domain]
Goodwill [Line Items]
Reporting Units, Goodwill Impairment Test Performed During Interim Period | reportable_segment		1
Goodwill, Impairment Loss		$ 2,000
Strategic Communications [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 18,893
Strategic Communications [Member] | All Other [Domain]
Goodwill [Line Items]
Reporting Units Impaired, Annual Goodwill Impairment Test | reportable_segment	1

XML

Goodwill and Intangible Assets - Schedule of Finite-lived Intangible Assets Amortization Expense (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2015	$ 16,677
2016	11,525
2017	7,346
2018	4,999
2019	$ 3,411

XML

Income Taxes - Schedule of Income before income tax, Domestic and Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax [Line Items]
Loss from continuing operations before income taxes, equity in affiliates	$ (49,716)	$ (17,416)	$ 15,109
Domestic Tax Authority
Income Tax [Line Items]
Loss from continuing operations before income taxes, equity in affiliates	(16,661)	23,180	46,728
Foreign Tax Authority
Income Tax [Line Items]
Loss from continuing operations before income taxes, equity in affiliates	$ (33,055)	$ (40,596)	$ (31,619)

XML

Income Taxes - Schedule of Components of Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax [Line Items]
Current tax provision	$ 634	$ 3,840	$ 1,459
Deferred tax provision (benefit):	(10,038)	(79)	8,317
Income tax provision (benefit)	(9,404)	3,761	9,776
United States Federal
Income Tax [Line Items]
Current tax provision	0	0	0
Deferred tax provision (benefit):	5,785	5,359	11,173
United States And Local
Income Tax [Line Items]
Current tax provision	(1,520)	1,375	907
Deferred tax provision (benefit):	(3,550)	2,877	1,554
Foreign
Income Tax [Line Items]
Current tax provision	2,154	2,465	552
Deferred tax provision (benefit):	$ (12,273)	$ (8,315)	$ (4,410)

XML

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income (loss) from continuing operations before income taxes, equity in non-consolidated affiliates and noncontrolling interest	$ (49,716)	$ (17,416)	$ 15,109
Statutory income tax rate	26.50%	26.50%	26.50%
Tax expense (benefit) using statutory income tax rate	$ (13,175)	$ (4,615)	$ 4,004
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	(94)	3,524	1,459
Non-deductible stock-based compensation	1,123	665	1,982
Other non-deductible expense	1,848	163	3,075
Change to valuation allowance on items affecting taxable income	6,605	3,565	(643)
Effect of the difference in federal and statutory rates	(4,579)	1,906	2,222
Noncontrolling interests	(1,287)	(2,399)	(1,826)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount	155	952	(497)
Income tax provision (benefit)	$ (9,404)	$ 3,761	$ 9,776
Effective income tax rate	18.90%	(21.60%)	64.70%

XML

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Capital assets and other	$ 6,758	$ 7,334
Net operating loss carry forwards	44,305	39,454
Interest deductions	12,146	12,266
Refinancing charge	7,413	144
Goodwill and intangibles	179,029	178,835
Stock compensation	2,581	3,033
Pension plan	5,095	3,770
Deferred Tax Assets, Unrealized Currency Losses	15,237	15,548
Capital loss carry forwards	10,957	10,630
Accounting reserves	7,138	6,701
Gross deferred tax asset	290,659	277,715
Less: valuation allowance	(248,866)	(247,967)
Net deferred tax assets	41,793	29,748
Deferred tax liabilities:
Deferred finance charges	(333)	(323)
Capital assets and other	(388)	(797)
Goodwill amortization	(109,638)	(100,743)
Total deferred tax liabilities	(110,359)	(101,863)
Disclosed as:
Deferred tax liabilities (assets), net	(68,566)	(72,115)
Deferred tax assets	41,793	29,748
Deferred Tax Liabilities, Net, Noncurrent	$ 110,359	$ 101,863

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Income Taxes - Schedule of Changes in Tax Reserve (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Reserve [Roll Forward]
Beginning Balance	$ 3,605	$ 3,073	$ 3,073
Charges to income tax expense	(1,261)	(960)	0
Settlement of uncertainty	(879)	(428)
Ending Balance	$ 1,465	$ 3,605	$ 3,073

XML

Income Taxes - Textual (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax [Line Items]
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount	$ 1,848,000	$ 163,000	$ 3,075,000
Non-deductible stock-based compensation	1,123,000	665,000	1,982,000
Change to valuation allowance on items affecting taxable income	6,605,000	3,565,000	(643,000)
Effect of the difference in federal and statutory rates	(4,579,000)	1,906,000	2,222,000
Income taxes receivable	1,506,000	615,000
Taxes payable	$ 4,547,000	7,019,000
Operating loss carryforwards expiration period	2016 through 2031
Indefinite loss carryforwards	$ 118,413,000
Valuation allowance, deferred tax asset, increase (decrease), amount	6,605,000	3,565,000	(643,000)
Pension and other postretirement benefit plans, tax	0	0	$ 1,112,000
Unrecognized tax benefits	1,543,000	4,000
Unrecognized tax benefits, income tax penalties and interest accrued	0	$ 595,000
United States Federal [Member]
Income Tax [Line Items]
Operating loss carryforwards	21,339,000
United States
Income Tax [Line Items]
Indefinite loss carryforwards	35,723,000
Foreign Tax Authority
Income Tax [Line Items]
Operating loss carryforwards	70,517,000
Canada
Income Tax [Line Items]
Indefinite loss carryforwards	82,691,000
State and Local Jurisdiction [Member]
Income Tax [Line Items]
Operating loss carryforwards	188,367,000
Canada Revenue Agency [Member]
Income Tax [Line Items]
Effect of the difference in federal and statutory rates	$ (4,579,000)

XML

Discontinued Operations - Textual (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2014	Dec. 31, 2015	May 31, 2015
Entity Information [Line Items]
Goodwill, Impairment Loss	$ 764,000	$ 15,564
Disposal Group, Including Discontinued Operation, Assets, Current	$ 0		$ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Entity Information [Line Items]
Disposal Group, Including Discontinued Operation, Consideration				$ 0

XML

Discontinued Operations - Schedule of Disposal Groups (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Revenue		$ 27,025	$ 70,041
Operating loss		(322)	(4,704)
Other expense		(752)	(458)
Loss on disposal		(5,207)	(16,098)
Net loss from discontinued operations	$ 0	$ (6,281)	$ (21,260)

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Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Mar. 23, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Mar. 20, 2013
Debt [Line Items]
Debt instrument, unamortized premium	$ 0		$ 5,838
Debt Issuance Costs, Line of Credit Arrangements, Gross	(18,420)		(12,625)
Debt, long-term and short-term, combined amount, total	936,005		728,213
Obligations under capital leases	431		670
Debt and capital lease obligations	936,436		728,883
Less: Current portion	228		470
Long-term debt, less current portion	936,208		728,413
Six Point Five Zero Percentage Notes [Domain]
Debt [Line Items]
Senior notes	$ 900,000		0
Stated interest rate	6.50%	6.50%
6.75% Notes
Debt [Line Items]
Senior notes	$ 0		735,000
Stated interest rate	6.75%			6.75%	6.75%	6.75%
Wells Fargo Capital Finance, Llc [Member] | Revolving Credit Facility [Member]
Debt [Line Items]
Long-term Line of Credit	$ 54,425		$ 0

XML

Debt - Schedule of Future Principal Repayments (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Debt Disclosure [Abstract]
2015	$ 228
2016	91
2017	86
2018	22
2019	54,429
2021 and thereafter	900,000
Future principal repayments of long term debt including capital lease obligations	$ 954,856

XML

Debt - Schedule of Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Debt Disclosure [Abstract]
2015	$ 248
2016	102
2017	93
2018	23
2019	5
2021 and thereafter	0
Capital leases, future minimum payments due, total	471
Less: imputed interest	(40)
Capital leases, future minimum payments, net minimum payments, total	431	$ 670
Less: current portion	(228)
Capital lease obligations, noncurrent	$ 203

XML

Debt - Textual (Details) - USD ($)					12 Months Ended			37 Months Ended
	May 03, 2016	Mar. 23, 2016	Oct. 23, 2014	Mar. 20, 2013	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	May 01, 2019	Dec. 31, 2013
Debt [Line Items]
Interest expense, debt, total					$ 56,468,000	$ 53,090,000	$ 50,832,000
Loss on redemption of Notes					(33,298,000)	0	0
Interest expense amortization of debt premium					(312,000)	(1,178,000)	(975,000)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability					8,227,000	38,887,000	18,652,000
Amortization of financing costs					3,022,000	3,448,000	$ 3,222,000
Debt instrument, unamortized premium					0	5,838,000
Letters of credit outstanding, amount					4,360,000
Outstanding Checks					$ 80,193,000	73,558,000
Wells Fargo Capital Finance, LLC
Debt [Line Items]
Line of Credit Facility, Description					On March 20, 2013, MDC, Maxxcom Inc. (a subsidiary of MDC) and each of their subsidiaries party thereto entered into an amended and restated, $225 million senior secured revolving credit agreement due 2018 (the Credit Agreement) with Wells Fargo Capital Finance, LLC, as agent, and the lenders from time to time party thereto. Advances under the Credit Agreement will be used for working capital and general corporate purposes, in each case pursuant to the terms of the Credit Agreement. Capitalized terms used in this section and not otherwise defined have the meanings set forth in the Credit Agreement. Advances under the Credit Agreement bear interest as follows: (a)(i) LIBOR Rate Loans bear interest at the LIBOR Rate and (ii) Base Rate Loans bear interest at the Base Rate, plus (b) an applicable margin. The initial applicable margin for borrowing is 1.25% in the case of Base Rate Loans and 2.00% in the case of LIBOR Rate Loans. In addition to paying interest on outstanding principal under the Credit Agreement, MDC is required to pay an unused revolver fee to lenders under the Credit Agreement in respect of unused commitments thereunder.
Debt instrument, maturity date	May 03, 2021		Sep. 30, 2019
Six Point Five Zero Percentage Notes [Domain]
Debt [Line Items]
Debt instrument, percentage redeemable redemption date, additional					106.50%
Stated interest rate		6.50%			6.50%
Proceeds from issuance of debt		$ 880,000
Debt instrument, face amount		$ 900,000
Debt instrument, percentage of redemption price, redemption date one					104.875%
Debt instrument, redemption date, one					May 01, 2019
Debt instrument, percentage of redemption price, redemption date two					103.25%
Debt instrument, redemption date, two					May 01, 2020
Debt instrument, percentage of redemption price, redemption date, latest for redemption at face amount					100.00%
Debt Instrument, Redemption Date, Four					May 01, 2022
Debt instrument, percentage of redemption price, change in ownership control					101.00%
Debt Instrument, Percentage Of Redemption Price, Redemption Date Three					101.625%
Debt Instrument, Redemption Date, Three					May 01, 2021
6.75% Notes
Debt [Line Items]
Loss on redemption of Notes					$ 33,298
Stated interest rate				6.75%	6.75%		6.75%		6.75%
Debt instrument, percentage of redemption price, redemption date one		103.375%
Revolving Credit Facility [Member] | Wells Fargo Capital Finance, LLC
Debt [Line Items]
Long-term Line of Credit					$ 54,425,000	0
Line of Credit Facility, Expiration Date				Dec. 31, 2018
Line of credit facility, increase (decrease)			$ 100,000,000
Maximum borrowing capacity			$ 325,000,000	$ 225,000,000
Debt Instrument, Basis Spread on Variable Rate, Rate Reduction from Amendment			25.00%
Revolving Credit Facility [Member] | Wells Fargo Capital Finance, LLC | Base Rate
Debt [Line Items]
Stated interest rate			1.00%		1.00%
Revolving Credit Facility [Member] | Wells Fargo Capital Finance, LLC | London Interbank Offered Rate (LIBOR)
Debt [Line Items]
Stated interest rate			1.75%		1.75%
Interest Expense [Member] | Fixed Payment [Member]
Debt [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability					$ 255,000	$ 2,543,000	$ 2,186,000
Scenario, Forecast [Member] | Optional redemption [Domain] | Six Point Five Zero Percentage Notes [Domain]
Debt [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed								35.00%

XML

Share Capital - Schedule of Share Based Compensation Performance and Time Based (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Employee Stock Option | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number outstanding, beginning balance	97,963	86,030	462,666
Weighted average grant date fair value, beginning balance	$ 19.61	$ 23.14	$ 9.79
Number outstanding, granted	10,000	80,000	120,578
Weighted average grant date fair value, granted	$ 14.00	$ 21.76	$ 25.09
Number outstanding, vested	(17,963)	(68,067)	(497,214)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$ 10.02	$ 25.21	$ 9.62
Number outstanding, forfeited	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 0.00	$ 0.00	$ 0.00
Number outstanding, ending balance	90,000	97,963	86,030
Weighted average grant date fair value, ending balance	$ 20.90	$ 19.61	$ 23.14
Employee Stock Option | Time Based Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number outstanding, beginning balance	774,502	916,141	913,788
Weighted average grant date fair value, beginning balance	$ 18.71	$ 16.36	$ 12.54
Number outstanding, granted	392,500	191,155	293,705
Weighted average grant date fair value, granted	$ 12.53	$ 20.42	$ 21.99
Number outstanding, vested	(380,367)	(297,794)	(264,478)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	$ 16.02	$ 12.35	$ 10.88
Number outstanding, forfeited	(46,000)	(35,000)	(26,874)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 20.39	$ 21.69	$ 11.52
Number outstanding, ending balance	740,635	774,502	916,141
Weighted average grant date fair value, ending balance	$ 16.71	$ 18.71	$ 16.36
Common Class A | Restricted Stock Units (RSUs) [Member]
Employee Stock Incentive Plan [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross	523,321

XML

Share Capital - Schedule of Shared Based Compensation, Stock Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number outstanding, ending balance	37,500
Weighted average price per share, ending balance	$ 5.83
Number exercisable, ending balance	37,500
Weighted average price per share, exercisable, ending balance	$ 5.83
Employee Stock Option
Employee Stock Incentive Plan [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares	0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number outstanding, beginning balance	75,000	112,500	112,500
Weighted average price per share, beginning balance	$ 5.28	$ 5.70	$ 6.03
Number exercisable, beginning balance	75,000	112,500	112,500
Weighted average price per share, exercisable, beginning balance	$ 5.28	$ 5.70	$ 6.03
Weighted average price per share, vested	$ 0.00	$ 0.00	$ 0.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares	0	0	0
Number outstanding, granted	0	0	0
Weighted average price per share, granted	$ 0.00	$ 0.00	$ 0.00
Number outstanding, exercised	37,500	37,500	0
Weighted average price per share, exercised	$ 5.97	$ 4.72	$ 0.00
Number outstanding, expired and cancelled	0	0	0
Weighted average price per share, expired and cancelled	$ 0.00	$ 0.00	$ 0.00
Number outstanding, ending balance	37,500	75,000	112,500
Weighted average price per share, ending balance	$ 5.83	$ 5.28	$ 5.70
Number exercisable, ending balance	37,500	75,000	112,500
Weighted average price per share, exercisable, ending balance	$ 5.83	$ 5.28	$ 5.70
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares	0	0	0

XML

Share Capital - Schedule of Share Based Compensation, Activity (Details)	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Employee Stock Incentive Plan [Line Items]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price	$ 5.83
Outstanding Number | shares	37,500
Weighted Average Contractual Life	6 months
Weighted Average Price per Share	$ 5.83
Exercisable Number | shares	37,500
Weighted Average Price per Share	$ 5.83
Weighted Average Contractual Life	6 months
Range of exercise prices, minimum	$ 5.83
Range of exercise prices, maximum	$ 5.83

XML

Share Capital - Schedule of Share Based Compensation, Stock Appreciation Rights (Details)	Jun. 01, 2016 shares
Stock Incentive Plan 2016 [Member] | Employee Stock Option
Stock Appreciation Rights [Line Items]
Number of shares authorized	1,500,000

XML

Share Capital - Textual (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2003 shares	Jun. 01, 2011 shares	Jun. 02, 2009 shares	May 30, 2008 shares	May 26, 2005 shares
Share Capital [Line Items]
Compensation cost not yet recognized | $	$ 0
Options, outstanding, intrinsic value | $	27,000
Options, exercises in period, intrinsic value | $	$ 471,000	$ 471,000	$ 0
Options, outstanding, weighted average remaining contractual term	6 months
Options, vested, weighted average remaining contractual term	6 months
Reserved shares	2,753,496
Stock Incentive Plan 2003
Share Capital [Line Items]
Vested percentage on date of grant				20.00%
Vested percentage on each anniversary date				20.00%
Vested percentage on each of first two years				20.00%
Stock Incentive Plan Maxxcom Privatization [Member]
Share Capital [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross				802,440
Employee Stock Incentive Plan
Share Capital [Line Items]
Proceeds from exercise of options | $	$ 0	$ 224,000	$ 0
Employee Stock Option
Share Capital [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	0	0	0
Employee Stock Option | Stock Incentive Plan 2005
Share Capital [Line Items]
Number of shares authorized						6,750,000		3,000,000
Employee Stock Option | Stock Incentive Plan 2005 | Additional Authorized On June 2007 And 2009
Share Capital [Line Items]
Number of shares authorized						3,750,000
Employee Stock Option | Stock Incentive Plan 2003
Share Capital [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross				2,836,179
Employee Stock Option | Stock Incentive Plan 2003 | Tranche 1
Share Capital [Line Items]
Expiration period (years)				5 years
Employee Stock Option | Stock Incentive Plan 2003 | Tranche 2
Share Capital [Line Items]
Expiration period (years)				10 years
Employee Stock Option | Key Partner Incentive Plan 2008
Share Capital [Line Items]
Number of shares authorized							900,000
Employee Stock Option | Stock Incentive Plan 2011
Share Capital [Line Items]
Number of shares authorized					3,000,000
Restricted Stock And Restricted Stock Units
Share Capital [Line Items]
Expiration period (years)	3 years
Award vesting period (years)	3 years
Equity instruments other than options, vested in period, fair value | $	$ 6,272,000	$ 5,394,000	$ 7,659,000
Tax benefit from compensation expense | $	5,429,000	$ 4,678,000	$ 11,874,000
Restricted stock and restricted unit awards, fair value | $	5,441,000
Nonvested awards, compensation not yet recognized, share-based awards other than options | $	$ 7,105,000
Number of shares available for grant (in shares)	1,934,861
Stock Appreciation Rights (SARs)
Share Capital [Line Items]
Number of shares available for grant (in shares)	781,135
Time Based Awards | Employee Stock Option
Share Capital [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	380,367	297,794	264,478
Time Based Awards | Restricted Stock And Restricted Stock Units
Share Capital [Line Items]
Equity instruments other than options, outstanding, weighted average remaining contractual terms	1 year 7 months 24 days
Performance Shares | Employee Stock Option
Share Capital [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	17,963	68,067	497,214
Performance Shares | Restricted Stock And Restricted Stock Units
Share Capital [Line Items]
Equity instruments other than options, outstanding, weighted average remaining contractual terms	1 year 10 months 13 days
Common Class A
Share Capital [Line Items]
Number of votes per share	1
Common Class B
Share Capital [Line Items]
Number of votes per share	20

XML

Fair Value Measurements - Fair Value Measurements Measured on a Recurring Basis (Details) - Fair Value, Inputs, Level 1 - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Six Point Five Zero Percentage Notes [Domain]
Liabilities:
Long term debt, carrying amount	$ 900,000	$ 0
Long term debt, fair value	812,250	0
Six Point Seven Five Percentage Notes [Member]
Liabilities:
Long term debt, carrying amount	0	740,838
Long term debt, fair value	$ 0	$ 765,319

XML

Fair Value Measurements - Schedule of Changes to Deferred Acquisition Consideration (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Other			$ (8,227,000)	$ (38,887,000)	$ (18,652,000)
Contingent Payment [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Other	$ 9,211	$ (41,913)	(7,972,000)	(36,344,000)	(16,467,000)
Contingent Payment [Member] | Fair Value, Inputs, Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance of contingent payments			306,734,000	172,227,000
Payments			105,169,000	77,301,000
Additions			16,132,000	174,530,000
Redemption value adjustments			13,930,000	41,636,000
Other			(6,412,000)	0
Foreign translation adjustment			(461,000)	(4,358,000)
Ending balance of contingent payments	$ 224,754,000	$ 306,734,000	$ 224,754,000	$ 306,734,000	$ 172,227,000

XML

Fair Value Measurements - Textual (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Stock Issued During Period, Shares, New Issues	0	0	0
Fixed Payment [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Contingent Consideration, Liability	$ 4,810	$ 40,370
Contingent and fixed payments [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Contingent Consideration, Liability	229,564	347,104
Common Class A | Common Stock [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Stock Issued During Period, Value, New Issues	$ 10,458	$ 0	$ 0
Stock Issued During Period, Shares, New Issues	691,559

XML

Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenue	$ 390,442,000	$ 349,254,000	$ 337,047,000	$ 309,042,000	$ 359,013,000	$ 328,415,000	$ 336,606,000	$ 302,222,000	$ 1,385,785,000	$ 1,326,256,000	$ 1,223,512,000
Cost of services sold	260,193,000	235,659,000	228,835,000	211,446,000	231,330,000	212,925,000	225,042,000	210,419,000	936,133,000	879,716,000	798,518,000
Office and general expenses									306,251,000	322,207,000	290,073,000
Depreciation and amortization									46,446,000	52,223,000	47,172,000
Goodwill, Impairment Loss									48,524,000	0	0
Operating income									48,431,000	72,110,000	87,749,000
Other Income (Expense):
Other income, net									414,000	7,238,000	689,000
Foreign Currency Transaction Gain (Loss), before Tax	10,081				9,531				(213,000)	(39,328,000)	(18,482,000)
Interest expense, finance charges, and loss on redemption of notes, net									98,348,000	57,436,000	54,847,000
Income (loss) from continuing operations before income taxes and equity in earnings of non-consolidated affiliates									(49,716,000)	(17,416,000)	15,109,000
Income tax benefit									9,404,000	(3,761,000)	(9,776,000)
Income (loss) from continuing operations before equity in earnings of non-consolidated affiliates									(40,312,000)	(21,177,000)	5,333,000
Equity in losses of non-consolidated affiliates									(309,000)	1,058,000	1,406,000
Income (loss) from continuing operations	11,143,000	(31,081,000)	2,089,000	(22,772,000)	(24,036,000)	(4,690,000)	31,548,000	(22,941,000)	(40,621,000)	(20,119,000)	6,739,000
Loss from discontinued operations attributable to MDC Partners Inc., net of taxes									0	(6,281,000)	(21,260,000)
Net loss attributable to MDC Partners Inc.									(40,621,000)	(26,400,000)	(14,521,000)
Capital expenditures from continuing operations									29,432,000	23,575,000	26,416,000
Intangible Assets, Net (Including Goodwill)	929,830,000				942,683,000				929,830,000	942,683,000
Total assets	1,577,378,000				1,577,625,000				1,577,378,000	1,577,625,000
Net Income (Loss) Attributable to Noncontrolling Interest									(5,218,000)	(9,054,000)	(6,890,000)
Net loss attributable to MDC Partners Inc.	9,097,000	$ (32,140,000)	$ 835,000	$ (23,631,000)	(25,747,000)	$ (8,128,000)	$ 30,036,000	$ (31,615,000)	(45,839,000)	(35,454,000)	(21,411,000)
Share-based Compensation	$ 5,560				$ 4,771				21,003,000	17,796,000	17,696,000
Global Integrated Agencies [Member]
Segment Reporting Information [Line Items]
Revenue									696,410,000	652,987,000	600,150,000
Depreciation and amortization									21,447,000	20,599,000	17,410,000
Goodwill, Impairment Loss									0
Operating income									58,505,000	66,161,000	67,290,000
Other Income (Expense):
Capital expenditures from continuing operations									16,439,000	17,043,000	19,669,000
Share-based Compensation									12,141,000	6,981,000	5,043,000
All Other [Domain]
Segment Reporting Information [Line Items]
Goodwill, Impairment Loss									29,631,000
Domestic Creative Agencies [Member]
Segment Reporting Information [Line Items]
Revenue									85,953,000	91,658,000	83,196,000
Depreciation and amortization									1,653,000	1,855,000	1,809,000
Goodwill, Impairment Loss									0
Operating income									16,583,000	17,535,000	14,266,000
Other Income (Expense):
Capital expenditures from continuing operations									1,055,000	1,321,000	818,000
Share-based Compensation									634,000	644,000	394,000
Specialist Communications [Member]
Segment Reporting Information [Line Items]
Revenue									170,285,000	153,920,000	124,938,000
Depreciation and amortization									6,637,000	11,201,000	8,272,000
Goodwill, Impairment Loss									18,893,000
Operating income									1,939,000	18,047,000	16,242,000
Other Income (Expense):
Capital expenditures from continuing operations									2,741,000	1,311,000	632,000
Share-based Compensation									3,629,000	1,510,000	2,050,000
Media Services [Member]
Segment Reporting Information [Line Items]
Revenue									131,498,000	132,419,000	120,852,000
Depreciation and amortization									5,718,000	4,660,000	6,113,000
Goodwill, Impairment Loss									0
Operating income									6,154,000	20,116,000	29,706,000
Other Income (Expense):
Capital expenditures from continuing operations									5,110,000	825,000	475,000
Share-based Compensation									301,000	471,000	918,000
All Other [Member]
Segment Reporting Information [Line Items]
Revenue									301,639,000	295,272,000	294,376,000
Depreciation and amortization									9,406,000	12,134,000	11,783,000
Operating income									9,368,000	15,423,000	28,322,000
Other Income (Expense):
Capital expenditures from continuing operations									4,054,000	2,704,000	3,485,000
Share-based Compensation									1,773,000	5,450,000	3,628,000
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Revenue									0	0	0
Depreciation and amortization									1,585,000	1,774,000	1,785,000
Operating income									(44,118,000)	(65,172,000)	(68,077,000)
Other Income (Expense):
Capital expenditures from continuing operations									33,000	371,000	1,337,000
Share-based Compensation									$ 2,525,000	$ 2,740,000	$ 5,663,000

XML

Segment Information - Additional Information (Details)	12 Months Ended
	Dec. 31, 2016 segment
Segment Reporting Information [Line Items]
Number of reportable segments	4

XML

Segment Information - Schedule of Fixed Assets, Goodwill and Intangibles, Net (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Long-lived Assets	$ 78,377				$ 63,557				$ 78,377	$ 63,557
Intangible Assets, Net (Including Goodwill)	929,830				942,683				929,830	942,683
Revenue	390,442	$ 349,254	$ 337,047	$ 309,042	359,013	$ 328,415	$ 336,606	$ 302,222	1,385,785	1,326,256	$ 1,223,512
United States
Segment Reporting Information [Line Items]
Long-lived Assets	67,617				52,305				67,617	52,305
Intangible Assets, Net (Including Goodwill)	736,334				798,746				736,334	798,746
Revenue									1,103,714	1,085,051	993,474
Canada
Segment Reporting Information [Line Items]
Long-lived Assets	5,887				6,817				5,887	6,817
Intangible Assets, Net (Including Goodwill)	121,987				122,821				121,987	122,821
Revenue									124,101	129,039	150,390
Other Geographical Location
Segment Reporting Information [Line Items]
Long-lived Assets	4,873				4,435				4,873	4,435
Intangible Assets, Net (Including Goodwill)	$ 71,509				$ 21,116				71,509	21,116
Revenue									$ 157,970	$ 112,166	$ 79,648

XML

Related Party Transactions (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jul. 31, 2014
Trapeze Media Limited | Union Advertising Canada LC
Related Party Transaction [Line Items]
Percentage of voting interests acquired			100.00%
Director of Operations, Attention Partners [Member] | Total Compensation [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related party	$ 145,000	$ 125,000

XML

Commitments, Contingencies and Guarantees - Textual (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Temporary Equity [Line Items]
Redeemable Noncontrolling Interest, Equity, Redemption Value	$ 60,180,000	$ 69,471,000
Letters of credit outstanding, amount	4,360,000
Operating leases, rent expense	56,725,000	47,583,000	$ 42,657,000
Operating leases, income statement, sublease revenue	3,027,000	$ 1,739,000	$ 1,449,000
Future sublease income receivable	11,599,000
Contractual redemption right [Member]
Temporary Equity [Line Items]
Redeemable Noncontrolling Interest, Equity, Redemption Value	12,510,000
Termination or Death Redemption Right [Member]
Temporary Equity [Line Items]
Redeemable Noncontrolling Interest, Equity, Redemption Value	43,085,000
Excess Initial Redemption Value [Member]
Temporary Equity [Line Items]
Redeemable Noncontrolling Interest, Equity, Redemption Value	4,585,000
Common Class A | Contractual redemption right [Member]
Temporary Equity [Line Items]
Redeemable Noncontrolling Interest, Equity, Redemption Value	124,000
Investments [Member]
Temporary Equity [Line Items]
Investment commitments	$ 738,000
Minimum [Member]
Temporary Equity [Line Items]
Redeemable noncontrolling interest obligation, year of payment	2017
Maximum
Temporary Equity [Line Items]
Redeemable noncontrolling interest obligation, year of payment	2023
SEC Investigation [Member]
Temporary Equity [Line Items]
Civil penalty	$ 1,500

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Commitments, Contingencies and Guarantees - Schedule of Future Minimum Rental Payments (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2015	$ 57,294
2016	55,445
2017	51,858
2018	49,068
2019	43,697
2022 and thereafter	134,485
Future minimum payments due, total	$ 391,847

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Employee Benefit Plans - Schedule of Net Periodic Pension Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Service cost	$ 0	$ 0
Interest cost on benefit obligation	1,855	1,864
Expected return on plan assets	(1,863)	(2,069)
Curtailment and settlements	929	0
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax	0	0
Amortization of prior service cost	0	0
Amortization of actuarial (gains) losses	137	103
Net periodic benefit cost (benefit)	$ 1,058	$ (102)

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Employee Benefit Plans - Schedule of Defined Benefit Plan Amounts in Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Curtailment/settlement	$ 0	$ 0
Current year actuarial (gain) loss	3,238	526
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Amortization of Actuarial Gain (Loss), Before Tax	137	103
Current year prior service (credit) cost	0	0
Amortization of prior service credit (cost)	0	0
Amortization of transition asset (obligation)	0	0
Total recognized in other comprehensive (income) loss	3,101	423
Total recognized in net periodic benefit cost and other comprehensive (income) loss	$ 4,159	$ 321

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Employee Benefit Plans - Schedule of Benefit Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Liability, Defined Benefit Plan, Noncurrent	$ 16,240	$ 15,106
Change in benefit obligation:
Benefit obligation, Beginning balance	40,296	43,799
Service Cost	0	0
Interest Cost	1,855	1,864
Change in Mortality	0	0
Plan amendments	0	0
Curtailment/settlement	0	0
Actuarial (gains) losses	2,502	(2,774)
Benefit obligation, Ending balance	40,722	40,296
Change in plan assets:
Fair value of plan assets, Beginning balance	25,190	28,360
Actual return on plan assets	198	(1,232)
Employer contributions	3,025	655
Fair value of plan assets, Ending balance	24,482	25,190
Defined Benefit Plan, Benefit Obligation, Benefits Paid	3,931	2,593
Defined Benefit Plan, Plan Assets, Benefits Paid	$ 3,931	$ 2,593

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Employee Benefit Plans - Schedule of Amounts Recognized in Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Amounts recognized in the balance sheet consist of:
Non-current liability	$ (16,240)	$ (15,106)
Net amount recognized	$ 16,240	$ 15,106

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Employee Benefit Plans - Schedule of Amounts Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Settlement and Curtailment gain (loss), net of tax	$ (12,320)	$ (9,219)
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	12,320	9,219
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax	0	0
Accumulated Other Comprehensive Income (Loss), Defined Benefit Plan, Transition Asset (Obligation), after Tax	$ 0	$ 0

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Employee Benefit Plans - Schedule of Assumptions Used to Determine Benefit Obligation (Details)	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Discount rate	4.32%	4.69%

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Employee Benefit Plans - Schedule of Assumptions Used to Determine Net Periodic Costs (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Discount rate	4.69%	4.38%
Expected return on plan assets	7.40%	7.40%

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Employee Benefit Plans - Schedule of Changes in Fair Value of Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 24,482	$ 25,190	$ 28,360
Corporate Bond Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	3,834
Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	22,795	10,006
Foreign Stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	291
Common Stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	9,479
Money Market Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,687	1,580
Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	24,482	19,921
Fair Value, Inputs, Level 1 | Corporate Bond Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Inputs, Level 1 | Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	22,795	10,006
Fair Value, Inputs, Level 1 | Foreign Stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	291
Fair Value, Inputs, Level 1 | Common Stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	9,479
Fair Value, Inputs, Level 1 | Money Market Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,687	145
Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	5,269
Fair Value, Inputs, Level 2 | Corporate Bond Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	3,834
Fair Value, Inputs, Level 2 | Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Inputs, Level 2 | Foreign Stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Inputs, Level 2 | Common Stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Inputs, Level 2 | Money Market Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	1,435
Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Inputs, Level 3 | Corporate Bond Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Inputs, Level 3 | Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Inputs, Level 3 | Foreign Stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Inputs, Level 3 | Common Stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Inputs, Level 3 | Money Market Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0

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Employee Benefit Plans - Schedule of Allocation of Plan Assets (Details)	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	100.00%
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	1.00%
Defined Benefit Plan, Actual Plan Asset Allocations	6.90%	6.30%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	68.00%
Defined Benefit Plan, Actual Plan Asset Allocations	65.50%	68.00%
Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	31.00%
Defined Benefit Plan, Actual Plan Asset Allocations	27.60%	25.70%

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Employee Benefit Plans - Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) (Details) - Pension Plan, Defined Benefit $ in Thousands	Dec. 31, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Prior service cost (credit) amortization	$ 0
Net loss amortization	222
Total	$ 222

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Employee Benefit Plans - Schedule of Expected Benefit Payments (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Estimated Future Benefit Payments for FYE 12/31
2015	$ 1,613
2016	1,762
2017	1,858
2018	2,028
2019	2,020
2022 and thereafter	$ 11,269

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Employee Benefit Plans - Textual (Details)	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	100.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	50.00%
Corporate Bonds And US Treasury Securities
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	50.00%
Long-term Investments
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	50.00%
Short-term Investments
Defined Benefit Plan Disclosure [Line Items]
Target Allocation	50.00%

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Changes in Accumulated Other Comprehensive Income - Schedule of Changes in AOCI(L) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Defined benefit pension, balance January 1	$ (9,219,000)	$ (8,796,000)
Foreign currency translation, balance January 1	15,476,000	1,044,000
Total, balance January 1	6,257,000	(7,752,000)
Other comprehensive income (loss) before reclassifications, defined benefit plan	0	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	(4,980,000)	14,432,000
Total, other comprehensive income (loss) before reclassifications	(4,980,000)	14,432,000
Defined benefit pension, amounts reclassified from accumulated other comprehensive income (loss)	(3,101,000)	(423,000)
Foreign currency translation, amounts reclassified from accumulated other comprehensive income (loss)	0	0
Pension and other postretirement benefit plans, tax	0	0	$ 1,112,000
Total, amounts reclassified from accumulated other comprehensive income (loss)	(3,101,000)	(423,000)
Defined benefit pension, other comprehensive income (loss)	(3,101,000)	(423,000)	(10,403,000)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent	(4,980,000)	14,432,000
Total, other comprehensive income (loss)	(8,081,000)	14,009,000
Defined benefit pension, balance December 31	(12,320,000)	(9,219,000)	(8,796,000)
Foreign currency translation, balance December 31	10,496,000	15,476,000	1,044,000
Total, balance December 31	$ (1,824,000)	$ 6,257,000	$ (7,752,000)

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Changes in Accumulated Other Comprehensive Income - Schedule of Defined Benefit Plans Disclosure (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax	$ 82	$ 62
Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), before Tax	0	0
Defined Benefit Plan, Net Periodic Benefit Cost	137	103
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	$ 55	$ 41

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Quarterly Results of Operations - Schedule of Results of Operations (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 390,442	$ 349,254	$ 337,047	$ 309,042	$ 359,013	$ 328,415	$ 336,606	$ 302,222	$ 1,385,785	$ 1,326,256	$ 1,223,512
Cost of services sold	260,193	235,659	228,835	211,446	231,330	212,925	225,042	210,419	936,133	879,716	798,518
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	11,143	(31,081)	2,089	(22,772)	(24,036)	(4,690)	31,548	(22,941)	(40,621)	(20,119)	6,739
Net loss attributable to MDC Partners Inc.	$ 9,097	$ (32,140)	$ 835	$ (23,631)	$ (25,747)	$ (8,128)	$ 30,036	$ (31,615)	$ (45,839)	$ (35,454)	$ (21,411)
Continuing operations (in dollars per share)	$ 0.17	$ (0.62)	$ 0.02	$ (0.47)	$ (0.52)	$ (0.14)	$ 0.58	$ (0.51)
Net income (loss) (in dollars per share)	0.17	(0.62)	0.02	(0.47)	(0.52)	(0.16)	0.60	(0.64)
Continuing operations (in dollars per share)	0.17	(0.62)	0.02	(0.47)	(0.52)	(0.14)	0.57	(0.51)
Net income (loss) (in dollars per share)	$ 0.17	$ (0.62)	$ 0.02	$ (0.47)	$ (0.52)	$ (0.16)	$ 0.60	$ (0.64)

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Quarterly Results of Operations - Textual (Details) - USD ($)	3 Months Ended			12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition, Contingent Consideration [Line Items]
Earnings Per Share, Diluted, Pro Forma Adjustment	$ 0.14
Foreign exchange loss	$ (10,081)		$ (9,531)	$ 213,000	$ 39,328,000	$ 18,482,000
Cost of services sold	5,560		4,771	21,003,000	17,796,000	17,696,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability				8,227,000	38,887,000	18,652,000
Goodwill, Impairment Loss				48,524,000	0	0
Contingent Payment [Member]
Business Acquisition, Contingent Consideration [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	(9,211)		$ 41,913	7,972,000	$ 36,344,000	$ 16,467,000
All Other [Domain]
Business Acquisition, Contingent Consideration [Line Items]
Goodwill, Impairment Loss				$ 29,631,000
Strategic Communications [Member]
Business Acquisition, Contingent Consideration [Line Items]
Goodwill, Impairment Loss	$ 18,893
Experiential and Non-material [Member]
Business Acquisition, Contingent Consideration [Line Items]
Goodwill, Impairment Loss		$ 30,000

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VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 1,306	$ 1,409	$ 2,011
Charged to Costs and Expenses	1,053	750	556
Removal of Uncollectible Receivables	(830)	(799)	(1,127)
Translation Adjustments Increase (Decrease)	(6)	(54)	(31)
Balance at the End of Period	1,523	1,306	1,409
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	247,967	175,218	161,875
Charged to Costs and Expenses	6,605	3,565	(643)
Other	(6,032)	73,390	15,331
Translation Adjustments Increase (Decrease)	327	(4,206)	(1,345)
Balance at the End of Period	$ 248,866	$ 247,967	$ 175,218

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Other Events (Details) - USD ($)		1 Months Ended			12 Months Ended
	Aug. 07, 2015	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Business Interruption Loss [Line Items]
Initial Perquisites Repayment							$ 11,285
Bonus Repayment	$ 10,582	$ 2,000	$ 1,500	$ 1,000
Non-recoverable cash bonus award charge							$ 5,338
SEC Investigation [Member]
Business Interruption Loss [Line Items]
Civil penalty						$ 1,500
Insurance Recoveries						4,065
Insurance Recoveries						$ 5,919
Subsequent Event [Member]
Business Interruption Loss [Line Items]
Bonus Repayment					$ 6,082

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Subsequent Events (Details) - USD ($) $ in Millions	Feb. 14, 2017	Dec. 31, 2016	Dec. 31, 2015
Subsequent Event [Line Items]
Preferred Stock, Shares Issued		0	0
Broad Street Principal Investments, LLC. [Domain] | Convertible Preferred Stock [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Preferred Stock, Shares Issued	95,000
Proceeds from Issuance of Preferred Stock, Preference Stock, and Warrants	$ 95.0