Fair Value Measurements	3 Months Ended
Fair Value Measurements	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair value measurements	Fair Value Measurements The Company’s financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable, other current liabilities, and debt, none of which are measured at fair value on a recurring basis. The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and other current liabilities approximate their fair value due to the short-term nature of these financial instruments. The Company’s long-term financial liabilities consist of the long-term debt. Long-term debt is recorded on the unaudited condensed consolidated balance sheets at issuance price and adjusted for any applicable unamortized discounts or premiums. The Company accounts for its fair value measurements in accordance with accounting guidance which defines fair value, establishes a framework for measuring fair value, and expands disclosures about fair value measurements. The fair value hierarchy for disclosure of fair value measurements is as follows: Level 1- Quoted prices in active markets for identical assets or liabilities Level 2- Quoted prices for similar assets and liabilities in active markets or inputs that are observable Level 3- Inputs that are unobservable (for example, cash flow modeling inputs based on assumptions) At March 31, 2017 and December 31, 2016, the Company had approximately $271.0 million and $270.9 million, respectively, of cash invested in money market deposit accounts which were included in cash and cash equivalents on the accompanying unaudited condensed consolidated balance sheets (Level 1). The Company reports transfers in and out of Levels 1, 2 and 3, as applicable, using the fair value of the individual securities as of the beginning of the reporting period in which the transfer(s) occurred. There were no transfers in or out of Level 1, 2, or 3 during the three months ended March 31, 2017 and the year ended December 31, 2016. Assets that are measured at fair value on a nonrecurring basis relate primarily to our tangible fixed assets. For these assets, the Company does not periodically adjust carrying value to fair value, except in the event of impairment. When the Company determines that an impairment has occurred, the carrying value is reduced to fair value and the difference is recorded as an impairment loss in our consolidated statements of income. As of March 31, 2017, the carrying value of the Company’s outstanding borrowings under the Amended Facility was approximately $382.1 million as compared to a fair value of $385.0 million (Level 2). As of December 31, 2016, the carrying value of the Company’s outstanding borrowings under the Amended Facility was approximately $383.1 million as compared to a fair value of $386.5 million (Level 2). The estimated fair value of the Company’s debt was based primarily on reported market values, recently completed market transactions and estimates based upon interest rates, maturities and credit risk.

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.