Adjustment to deferred acquisition consideration included in interest expense

No definition available.

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- Definition

Clients exceeding consolidated accounts receivable percentage

+ References

No definition available.

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- Definition

Clients exceeding consolidated largest client revenue

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No definition available.

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- Definition

The percentage of accounts receivable that the largest client did not exceed during the period.

+ References

No definition available.

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- Definition

The percentage of revenue over the consolidated revenue that the largest client did not exceed during the period.

+ References

No definition available.

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Namespace Prefix:	mdca_
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- Definition

Deferred Tax Liability, Prior Period Correction

+ References

No definition available.

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Balance Type:	credit
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- Definition

Percentage of interest rate payable on senior notes.

+ References

No definition available.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Option to purchase noncontrolling interest impairment charge

+ References

No definition available.

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- Definition

Adjustments to redeemable noncontrolling interest resulting from foreign currency translation adjustments.

+ References

No definition available.

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- References

No definition available.

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- Definition

Stock Issued During Period, Shares, Convertible Preferred Shares

+ References

No definition available.

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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-Name Accounting Standards Codification
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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-Paragraph 4
-Subparagraph (a)(1)
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- Definition

Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 20
-Section 35
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=75027002&loc=d3e40346-111594

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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Data Type:	num:percentItemType
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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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-Publisher FASB
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-Subparagraph (i)
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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-Publisher FASB
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-Paragraph 3
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- Definition

Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

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-SubTopic 10
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-Paragraph 9
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319

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- Definition

The increase (decrease) in cash during the period due to the net increase or decrease in book overdrafts.

+ References

No definition available.

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- Definition

Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

+ References

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Balance Type:	credit
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 3A
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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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-Paragraph 24
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Amount of increase in noncontrolling interest from a business combination.

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-Paragraph 1
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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The aggregate fair value as of the reporting date of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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- Definition

Number of new stock issued during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

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Significant Accounting Policies (Details Textual)						3 Months Ended		12 Months Ended
Significant Accounting Policies (Details Textual)	May 01, 2024	May 03, 2016	Mar. 23, 2016	Oct. 23, 2014 USD ($)	Mar. 28, 2012	Mar. 31, 2017 USD ($) Clients shares	Mar. 31, 2016 USD ($) Clients	Dec. 31, 2016 USD ($) Clients	Jan. 31, 2017 $ / shares shares	Dec. 31, 2015 USD ($)	Mar. 20, 2013
Significant Accounting Policies [Line Items]
Disclosed Deferred Tax Liabilities								$ 6,916,000
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability							$ 339
Increase (Decrease) in Book Overdrafts							6,271,000
Stock Issued During Period, Shares, Convertible Preferred Shares \| shares						90,220,000
Redeemable Noncontrolling Interest, Equity, Fair Value						$ 60,383,000		60,180,000
Noncontrolling Interest, Increase from Business Combination						63,000
Debt Issuance Costs, Net						$ (18,039,000)		$ (18,420,000)
Clients exceeding consolidated accounts receivable percentage \| Clients						0		0
Interest Rate Percentage On Senior Notes						6.75%
Put option noncontrolling interest impairment charge						$ 0	$ 0
Cost Method Investments						$ 10,306,000		$ 10,132,000
Consolidated Accounts Receivable Percentage						10.00%				10.00%
Clients exceeding consolidated largest client revenue \| Clients						0	0
Consolidated Largest Client Revenue						10.00%	10.00%
Business Combination, Acquisition Related Costs						$ 234,000	$ 553,000
Assets						1,626,653,000		1,577,378,000
Liabilities						1,990,372,000		2,026,674,000
Restricted stock grant date fair value						4,153,000
Adjustment to deferred acquisition consideration included in interest expense						$ 29,000	112,000
Series 4 Convertible Preferred Stock [Domain]
Significant Accounting Policies [Line Items]
Stock Issued During Period, Shares, Convertible Preferred Shares \| shares						95,000
Doner [Member]
Significant Accounting Policies [Line Items]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage					30.00%
Assets						$ 101,200,000		102,456,000
Liabilities						$ 57,450,000		57,622,000
Aggregate 2012 Acquisitions [Member] \| Doner [Member]
Significant Accounting Policies [Line Items]
Ownership Interest Percentage Increase On Exercise Of Option					70.00%
Minimum [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life						3 years
Maximum [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life						7 years
Equity Method Investment, Ownership Percentage						50.00%
Real Estate Joint Venture [Member]
Significant Accounting Policies [Line Items]
Equity Method Investment, Ownership Percentage						30.00%
Wells Fargo Capital Finance, LLC
Significant Accounting Policies [Line Items]
Debt Instrument, Maturity Date		May 03, 2021		Sep. 30, 2019
Line of Credit Facility, Maximum Borrowing Capacity				$ 325,000,000
Contingent payment [Domain]
Significant Accounting Policies [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability						$ 11,431,000	$ 6,327,000
Notes due 2020 [Member]
Significant Accounting Policies [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						6.75%
Six Point Seven Five Percentage Notes [Member]
Significant Accounting Policies [Line Items]
Debt Instrument, Interest Rate, Stated Percentage											6.75%
Six Point Seven Five Percentage Notes [Member] \| Wells Fargo Capital Finance, LLC
Significant Accounting Policies [Line Items]
Debt Instrument, Maturity Date			Apr. 01, 2020
Notes due 2024 [Domain]
Significant Accounting Policies [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						6.50%
Six Point Five Zero Percentage Notes [Domain]
Significant Accounting Policies [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			6.50%			6.50%
Restricted Stock Units (RSUs) [Member] \| Common Class A
Significant Accounting Policies [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross \| shares						90,000
Restricted stock grant date fair value						$ 609,000
Scenario, Forecast [Member] \| Six Point Five Zero Percentage Notes [Domain]
Significant Accounting Policies [Line Items]
Debt Instrument, Maturity Date	May 01, 2024
Scenario, Forecast [Member] \| Six Point Five Zero Percentage Notes [Domain] \| Wells Fargo Capital Finance, LLC
Significant Accounting Policies [Line Items]
Debt Instrument, Maturity Date	May 01, 2024
Noncontrolling Interest Equity [Domain] \| Aggregate 2016 Step Up Transactions [Member]
Significant Accounting Policies [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests								19,354
Redeemable Noncontrolling Interest [Member]
Significant Accounting Policies [Line Items]
Redeemable Noncontrolling Interest, Equity, Fair Value						60,383,000		60,180,000		$ 69,471,000
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests						63,000		1,708,000
Noncontrolling Interest, Increase from Business Combination						0		2,274,000
Changes in redemption value						195,000		(9,604,000)
Redeemable Noncontrolling Interest Currency Adjustments						71,000		$ (253,000)
Stock Incentive Plan 2011 [Member] \| Stock Appreciation Rights (SARs) [Member]
Significant Accounting Policies [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized \| shares									327,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price \| $ / shares									$ 6.60
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options						$ 770,000
Stock Incentive Plan 2011 [Member] \| Contingent Restricted Stock Units (RSUs) [Member]
Significant Accounting Policies [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross \| shares						932,600
Stock Incentive Plan 2016 [Member] \| Contingent Restricted Stock Units (RSUs) [Member]
Significant Accounting Policies [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value \| shares						513,321