Long-Term Debt - Additional Information (Detail)					3 Months Ended
	May 08, 2018 USD ($)	Jan. 05, 2018 USD ($)	Mar. 30, 2017 USD ($)	Jan. 03, 2017 USD ($)	Mar. 31, 2018 USD ($) Swap	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	May 14, 2013
Debt Instrument [Line Items]
Long-term debt					$ 1,594,119,000			$ 1,560,046,000
Repayment of revolving credit facility					5,000,000		$ 20,000,000
Outstanding letters of credit					$ 21,291,000
Interest Rate Swaps [Member]
Debt Instrument [Line Items]
Number of interest rate swaps held | Swap					5
Notional amount of interest rate swap					$ 1,000,000,000
Maturity of interest rate swap					May 14, 2020
Weighted average fixed interest rate					2.45%
Variable rate of interest					0.75%
Variable rate of interest, description					variable rate of interest based upon the greater of 0.75% or the three month BBA LIBOR
Senior Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Percentage of annual excess cash flow used to prepay outstanding loan					50.00%
Percentage of net proceeds from sale of non-ordinary assets					100.00%
Percentage of net proceeds incurrence of debt					100.00%
Mandatory prepayments							6,300,000
Cash paid for interest		$ 5,050,000		$ 12,904,000	$ 23,995,000		31,040,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Unamortized debt issuance costs and discounts					2,221,000			2,524,000
Long-term debt					55,000,000			15,000,000
Senior secured revolving					$ 210,000,000
Debt instrument, maturity date description					The Revolving Credit Facility will mature on the earlier of (a) March 31, 2022 and (b) the 91st day prior to the earlier of (1) the maturity of the Term B-2 Loans with an aggregate principal amount greater than $50,000 and (2) the maturity date of any indebtedness incurred to refinance the Term B-2 Loans with an aggregate principal amount greater than $50,000.
Amount available for borrowing					$ 133,709,000
Revolving Credit Facility [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Debt instrument, balance	$ 10,000,000
Repayment of revolving credit facility	$ 25,000,000
Restrictive Covenants [Member]
Debt Instrument [Line Items]
Restrictive covenants, restricted payments capacity available					$ 90,000,000
Maximum total net leverage ratio					575.00%
Restrictive Covenants [Member] | Senior Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Restrictive covenants, description					The Senior Secured Credit Facilities permit restricted payments in an aggregate amount per annum equal to the sum of (A) $25,000 plus (B) an amount, if any, equal to (1) if the total net leverage ratio on a pro forma basis after giving effect to the payment of any such restricted payment, is no greater than 3.50 to 1.00, an unlimited amount, (2) if the total net leverage ratio on a pro forma basis after giving effect to the payment of any such restricted payment is no greater than 4.00 to 1.00 and greater than 3.50 to 1.00, the greater of (a) $95,000 and (b) 7.50% of Market Capitalization (as defined in the Senior Secured Credit Facilities), (3) if the total net leverage ratio on a pro forma basis after giving effect to the payment of any such restricted payment is no greater than 4.50 to 1.00 and greater than 4.00 to 1.00, $95,000 and (4) if the total net leverage ratio on a pro forma basis after giving effect to the payment of any such restricted payment is no greater than 5.00 to 1.00 and greater than 4.50 to 1.00, $65,000.
Percentage of Market Capitalization on restricted payment					7.50%
First lien secured net leverage ratio					350.00%
Total net leverage ratio, as calculated					470.00%
Restrictive Covenants [Member] | Senior Secured Credit Facilities [Member] | Maximum [Member]
Debt Instrument [Line Items]
Percentage of annual excess cash flow used to prepay outstanding loan					25.00%
Restricted payment on Senior Secured Credit Facilities, base payment					$ 25,000,000
Restricted payment on Senior Secured Credit Facilities, first payment					95,000,000
Restricted payment on Senior Secured Credit Facilities, second payment					95,000,000
Restricted payment on Senior Secured Credit Facilities, third payment					$ 65,000,000
Total net leverage ratio, one					400.00%
Total net leverage ratio, two					450.00%
Total net leverage ratio, three					500.00%
Restrictive Covenants [Member] | Senior Secured Credit Facilities [Member] | Minimum [Member]
Debt Instrument [Line Items]
Percentage of annual excess cash flow used to prepay outstanding loan					0.00%
Total net leverage ratio, one					350.00%
Total net leverage ratio, two					400.00%
Total net leverage ratio, three					450.00%
Term B-5 Loans [Member]
Debt Instrument [Line Items]
Debt instrument, balance							998,306,000
Discount initially recorded							4,992,000
Debt issuance costs initially recorded							44,000
Write-off of discounts and debt issuance costs							$ 7,987,000
Unamortized debt issuance costs and discounts					$ 11,413,000			11,904,000
Long-term debt					$ 988,323,000			990,819,000
Long-term debt, maturity date					Mar. 31, 2024
Percent of original principal amount on effective date used to calculate aggregate annual amount which will amortize in equal quarterly installments							1.00%
Term B-2 Loans [Member]
Debt Instrument [Line Items]
Repayment of outstanding principal							$ 753,593,000
Unamortized debt issuance costs and discounts					$ 2,939,000			3,302,000
Long-term debt					$ 550,796,000			$ 554,227,000
Long-term debt, maturity date					May 14, 2020
Percent of original principal amount on effective date used to calculate aggregate annual amount which will amortize in equal quarterly installments									1.00%
Cash paid for interest		$ 5,050,000
Term B-2 Loans [Member] | Senior Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Mandatory prepayments					$ 0	$ 2,800,000
Term B-3 Loans [Member]
Debt Instrument [Line Items]
Repayment of outstanding principal							244,713,000
Term B-3 Loans [Member] | Senior Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Mandatory prepayments					$ 0
Mandatory Prepayment of Debt [Member]
Debt Instrument [Line Items]
Write-off of discounts and debt issuance costs			$ 33,000
Term B-2 and Term B-3 Loans [Member] | Senior Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Mandatory prepayments							$ 3,500,000