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Long-Term Debt and Capital Lease Obligations - Schedule of Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 08, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Debt instrument principal amount	$ 1,283,500		$ 568,000
Less: Current portion, principal	(10,000)		(10,000)
Debt instrument principal long-term portion	1,273,500		558,000
Unamortized debt issuance cost	(13,096)		(547)
Less: Current portion, unamortized debt issuance costs	0		0
Long-term portion, principal, unamortized debt issuance costs	(13,096)		(547)
Long term debt	1,270,404		567,453
Less: Current portion	(10,000)		(10,000)
Long-term portion	1,260,404		557,453
Term Loan Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	190,000		200,000
Unamortized debt issuance cost	(401)		(547)
Long term debt	189,599		199,453
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	343,500		368,000
Long term debt	343,500		$ 368,000
5.25% Senior Unsecured Notes Due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	750,000	$ 750,000
Unamortized debt issuance cost	(12,695)
Long term debt	$ 737,305

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Face (par) amount of debt instrument at time of issuance.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 942
-SubTopic 210
-Section S99
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