Fair Value of Financial Instruments	9 Months Ended
Fair Value of Financial Instruments	Sep. 30, 2014
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	8. FAIR VALUE OF FINANCIAL INSTRUMENTS The Company defines fair value as the price that would be received to sell an asset or be paid to transfer a liability in an orderly transaction between market participants at the measurement date and applies the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement. The hierarchy gives the highest priority to observable inputs such as unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The Company uses observable inputs where relevant and whenever possible. Level 1—Quoted prices are available in active markets for identical investments as of the reporting date. 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 in which all significant inputs and significant value drivers are observable in active markets. Level 3—Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable. The Company’s financial instruments consist primarily of cash and cash equivalents, accounts receivable, accounts payable, and long-term debt. The fair value of the Company’s financial instruments approximates their carrying value. As of September 30, 2014, the Company’s long-term debt had a book value of $776.2 million and a fair value of $767.4 million using a model that considers observable inputs (level 2 inputs). As of December 31, 2013, the Company's long-term debt had a book value of $782.1 million and a fair value of $784.1 million using a model that considers observable inputs (level 2 inputs). Financial instruments that potentially expose the Company to concentrations of credit risk consist mainly of cash and cash equivalents and accounts receivable. The Company mitigates its exposure by maintaining its cash and cash equivalents in financial institutions of high credit standing. The Company’s accounts receivable, which are derived primarily from the services it provides, are dispersed across many clients in various industries with no single client accounting for more than 10% of the Company’s net revenue or accounts receivable. The Company believes that no significant credit risk exists at September 30, 2014.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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