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Subsequent Events - Additional Information (Detail) - USD ($)		9 Months Ended
	Nov. 01, 2016	Sep. 30, 2016	Sep. 30, 2015	Oct. 27, 2016
Subsequent Event [Line Items]
Repayment of senior term loans		$ 23,125,000	$ 651,863,000
2015 Credit Agreement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Repayment of senior term loans	$ 101,900,000
Tranche A term loan facility [Member] | 2015 Credit Agreement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Repayment of senior term loans	59,400,000
Tranche B-1 term loan facility [Member] | 2015 Credit Agreement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Repayment of senior term loans	28,700,000
Tranche B-2 term loan facility [Member] | 2015 Credit Agreement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Repayment of senior term loans	$ 13,800,000
Class A Common Stock [Member]
Subsequent Event [Line Items]
Authorized share repurchase term		3 years
Class A Common Stock [Member] | Maximum [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Authorized share repurchase amount				$ 250,000,000

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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