Notes Payable and Borrowings under Capital Leases - Components of Company's Notes Payable and Borrowings under Capital Leases Balances (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2016	Dec. 31, 2015
Credit Facility [Line Items]
Term loan	$ 472,500	$ 499,563
Term loan B	(4,490)	(5,781)
Capital leases	125	153
Less: current portion of notes payable and borrowings under capital leases	(36,497)	(32,970)
Notes payable and borrowings under capital leases, net, less current portion	431,638	460,965
Tranche A term loans \| First lien credit facility
Credit Facility [Line Items]
Term loan	$ 337,500	351,563
Annual Contractual Interest Rate	3.09%
Effective Interest Rate	3.15%
Tranche B term loans \| First lien credit facility
Credit Facility [Line Items]
Term loan	$ 0	148,000
LIBOR \| Tranche A term loans \| First lien credit facility
Credit Facility [Line Items]
Margin for term loans	2.25%
Prime lending rate \| Tranche A term loans \| First lien credit facility
Credit Facility [Line Items]
Margin for term loans	1.25%
Loans Payable \| Tranche A-2 Term Loans
Credit Facility [Line Items]
Term loan	$ 135,000	$ 0
Annual Contractual Interest Rate	2.97%
Effective Interest Rate	2.99%
Loans Payable \| LIBOR \| Tranche A-2 Term Loans
Credit Facility [Line Items]
Margin for term loans	2.125%
Loans Payable \| Prime lending rate \| Tranche A-2 Term Loans
Credit Facility [Line Items]
Margin for term loans	1.125%

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 7

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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