Summary of Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2017
Accounting Policies [Abstract]
New Accounting Pronouncements	Recently Adopted In May 2016, the FASB issued ASU 2016-09, "Improvements to Employee Share-Based Payment Accounting," which simplifies several aspects of the accounting for employee share-based payment transactions. The Company adopted the ASU for the fiscal year beginning after December 15, 2016. The Company elected to calculate its share-based compensation expense based on actual forfeitures rather than the previous approach which was net of estimated forfeitures. The adoption of the ASU did not have a material impact on the Company's condensed consolidated financial statements. Recently Issued In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers." The ASU outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers. Additionally, the ASU expands the disclosure requirements for revenue recognition. The ASU was originally effective for the annual reporting period in the fiscal year that begins after December 15, 2016. In August 2015, the FASB issued ASU 2015-14, "Revenue from Contracts with Customers: Deferral of the Effective Date," which provides amendments that defer the effective date of ASU 2014-09 by one year. In 2016, the FASB additionally issued ASU 2016-08, "Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net);" ASU 2016-10, "Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing;" and ASU 2016-12, "Revenue from Contracts with Customers: Narrow-Scope Improvements and Practical Expedients." The amendments in these updates are effective either retrospectively to each prior reporting period presented, or as a cumulative-effect adjustment as of the date of adoption, during interim and annual periods beginning after December 15, 2017, with early adoption permitted beginning after December 15, 2016. The Company is currently assessing the impact of the adoption of this update on its financial condition, results of operations and cash flows, and disclosures related thereto. Based on the Company’s preliminary assessment, it has determined that the adoption of this update may defer the timing of the recognition of upfront investment banking advisory fees (e.g., retainer and engagement fees) until completion of the engagement. These upfront fees are currently recognized ratably over the service period. The new guidance may also require underwriting expenses to be recorded on a gross basis while the current guidance requires recognizing underwriting revenues net of related underwriting expenses. In addition, the new guidance requires enhanced disclosures, including revenue recognition policies to identify performance obligations to customers and significant judgments in measurement and recognition. The Company is continuing its assessment and may identify other revenue streams that will be impacted. In January 2016, the FASB issued ASU 2016-01, "Recognition and Measurement of Financial Assets and Financial Liabilities," which revises an entity's accounting related to the classification and measurement of investments in equity securities, changes the presentation of certain fair value changes relating to instrument specific credit risk for financial liabilities and amends certain disclosure requirements associated with the fair value of financial instruments. The ASU is effective for fiscal years beginning after December 15, 2017. The adoption of the ASU will not have a material impact on the Company's condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, "Leases." The ASU requires the recognition of a right-of use asset and lease liability on the balance sheet by lessees for those leases classified as operating leases under previous guidance. The ASU is effective for fiscal years beginning after December 15, 2018. The Company is currently evaluating the impact of adopting this ASU which it expects will have a material impact on its condensed consolidated financial statements. Since the Company has operating leases in over 100 locations, the Company expects to recognize a significant right-of use asset and lease liability on its condensed consolidated balance sheet upon adoption of this ASU. In June 2016, the FASB issued ASU 2016-13, "Measurement of Credit Losses on Financial Instruments," which amends the FASB's guidance on the impairment of financial instruments. The ASU adds to U.S. GAAP an impairment model ("current expected credit loss model"). Under this new guidance, an entity recognizes as an allowance its estimate of expected credit losses. The ASU is effective for the fiscal year beginning after December 15, 2019. The Company is currently evaluating the impact, if any, that the ASU will have on its condensed consolidated financial statements. In August 2016, the FASB issued ASU 2016-15, "Classification of Certain Cash Receipts and Cash Payments," which amends the guidance on the classification of certain cash receipts and payments in the statement of cash flow. The ASU is effective for the fiscal year beginning after December 15, 2017 and early adoption is permitted. The Company will not early adopt this ASU. The Company is currently evaluating the impact of the ASU and the adoption of the ASU is not expected to have a material impact on its condensed consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, "Statement of Cash Flow - Restricted Cash," which adds or clarifies guidance on the classification and presentation of restricted cash in the statement of cash flows. The ASU is effective for the fiscal year beginning after December 15, 2017 and early adoption is permitted. The Company will not early adopt this ASU. The Company is currently evaluating the impact of the ASU and the adoption of the ASU is not expected to have a material impact on its condensed consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, "Intangibles - Goodwill and Other, Simplifying the Test for Goodwill Impairment," which simplifies the subsequent measurement of goodwill. The Company is no longer required to perform its Step 2 goodwill impairment test; instead, the Company should perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. The ASU is effective for the fiscal year beginning after December 15, 2019 and early adoption is permitted. The Company will not early adopt this ASU. The Company is currently evaluating the impact of the ASU and the adoption of the ASU is not expected to have a material impact on its condensed consolidated financial statements.

Recently Adopted

In May 2016, the FASB issued ASU 2016-09, "Improvements to Employee Share-Based Payment Accounting," which simplifies several aspects of the accounting for employee share-based payment transactions. The Company adopted the ASU for the fiscal year beginning after December 15, 2016. The Company elected to calculate its share-based compensation expense based on actual forfeitures rather than the previous approach which was net of estimated forfeitures. The adoption of the ASU did not have a material impact on the Company's condensed consolidated financial statements.

Recently Issued

In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers." The ASU outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers. Additionally, the ASU expands the disclosure requirements for revenue recognition. The ASU was originally effective for the annual reporting period in the fiscal year that begins after December 15, 2016. In August 2015, the FASB issued ASU 2015-14, "Revenue from Contracts with Customers: Deferral of the Effective Date," which provides amendments that defer the effective date of ASU 2014-09 by one year. In 2016, the FASB additionally issued ASU 2016-08, "Revenue from Contracts with Customers: Principal versus Agent Considerations (Reporting Revenue Gross versus Net);" ASU 2016-10, "Revenue from Contracts with Customers: Identifying Performance Obligations and Licensing;" and ASU 2016-12, "Revenue from Contracts with Customers: Narrow-Scope Improvements and Practical Expedients." The amendments in these updates are effective either retrospectively to each prior reporting period presented, or as a cumulative-effect adjustment as of the date of adoption, during interim and annual periods beginning after December 15, 2017, with early adoption permitted beginning after December 15, 2016. The Company is currently assessing the impact of the adoption of this update on its financial condition, results of operations and cash flows, and disclosures related thereto. Based on the Company’s preliminary assessment, it has determined that the adoption of this update may defer the timing of the recognition of upfront investment banking advisory fees (e.g., retainer and engagement fees) until completion of the engagement. These upfront fees are currently recognized ratably over the service period. The new guidance may also require underwriting expenses to be recorded on a gross basis while the current guidance requires recognizing underwriting revenues net of related underwriting expenses. In addition, the new guidance requires enhanced disclosures, including revenue recognition policies to identify performance obligations to customers and significant judgments in measurement and recognition. The Company is continuing its assessment and may identify other revenue streams that will be impacted.

In January 2016, the FASB issued ASU 2016-01, "Recognition and Measurement of Financial Assets and Financial Liabilities," which revises an entity's accounting related to the classification and measurement of investments in equity securities, changes the presentation of certain fair value changes relating to instrument specific credit risk for financial liabilities and amends certain disclosure requirements associated with the fair value of financial instruments. The ASU is effective for fiscal years beginning after December 15, 2017. The adoption of the ASU will not have a material impact on the Company's condensed consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, "Leases." The ASU requires the recognition of a right-of use asset and lease liability on the balance sheet by lessees for those leases classified as operating leases under previous guidance. The ASU is effective for fiscal years beginning after December 15, 2018. The Company is currently evaluating the impact of adopting this ASU which it expects will have a material impact on its condensed consolidated financial statements. Since the Company has operating leases in over 100 locations, the Company expects to recognize a significant right-of use asset and lease liability on its condensed consolidated balance sheet upon adoption of this ASU.

In June 2016, the FASB issued ASU 2016-13, "Measurement of Credit Losses on Financial Instruments," which amends the FASB's guidance on the impairment of financial instruments. The ASU adds to U.S. GAAP an impairment model ("current expected credit loss model"). Under this new guidance, an entity recognizes as an allowance its estimate of expected credit losses. The ASU is effective for the fiscal year beginning after December 15, 2019. The Company is currently evaluating the impact, if any, that the ASU will have on its condensed consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15, "Classification of Certain Cash Receipts and Cash Payments," which amends the guidance on the classification of certain cash receipts and payments in the statement of cash flow. The ASU is effective for the fiscal year beginning after December 15, 2017 and early adoption is permitted. The Company will not early adopt this ASU. The Company is currently evaluating the impact of the ASU and the adoption of the ASU is not expected to have a material impact on its condensed consolidated financial statements.

In November 2016, the FASB issued ASU 2016-18, "Statement of Cash Flow - Restricted Cash," which adds or clarifies guidance on the classification and presentation of restricted cash in the statement of cash flows. The ASU is effective for the fiscal year beginning after December 15, 2017 and early adoption is permitted. The Company will not early adopt this ASU. The Company is currently evaluating the impact of the ASU and the adoption of the ASU is not expected to have a material impact on its condensed consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04, "Intangibles - Goodwill and Other, Simplifying the Test for Goodwill Impairment," which simplifies the subsequent measurement of goodwill. The Company is no longer required to perform its Step 2 goodwill impairment test; instead, the Company should perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. The ASU is effective for the fiscal year beginning after December 15, 2019 and early adoption is permitted. The Company will not early adopt this ASU. The Company is currently evaluating the impact of the ASU and the adoption of the ASU is not expected to have a material impact on its condensed consolidated financial statements.