Derivative Financial Instruments - Additional Information (Detail)		1 Months Ended			3 Months Ended
	Mar. 25, 2015 USD ($)	Mar. 31, 2015 USD ($)	Jan. 31, 2014 USD ($)	Mar. 31, 2008 USD ($) agreement	Jul. 30, 2016 USD ($)	Aug. 01, 2015 USD ($)	Aug. 31, 2015 USD ($)	Apr. 26, 2014 USD ($)
Derivative [Line Items]
Effective portion of gains or losses recognized in OCI					$ 0
Ineffectiveness recorded during period					0	$ 0
Increase (decrease) in interest expense					(2,809,000)
Interest Rate Cap [Member]
Derivative [Line Items]
Notional amount of derivatives					575,000,000
New Interest Rate Cap [Member]
Derivative [Line Items]
Notional amount of derivatives							$ 100,000,000	$ 100,000,000
Interest Rate Swap [Member]
Derivative [Line Items]
Number of interest rate swap agreements | agreement				2
Notional amount of derivative asset				$ 100,000,000
Increase to other comprehensive income				1,000,000
Increase (decrease) in interest expense					$ (695,000)	$ (702,000)
Interest Rate Swap Two [Member]
Derivative [Line Items]
Notional amount of derivative asset				$ 100,000,000
Interest Rate Swap Agreement [Member]
Derivative [Line Items]
Notional amount of derivatives			$ 250,000,000
Percentage of senior notes			5.17%
Settlement of swap		$ 29,003,000
Interest Rate Swap Agreement [Member] | 5.17% Senior Notes [Member]
Derivative [Line Items]
Maturity date of long-term loan			Mar. 25, 2015
Senior notes amount due			$ 250,000,000
Interest Rate Swap Agreement [Member] | 5.17% Senior Notes [Member] | Long-term Debt [Member]
Derivative [Line Items]
Period of long-term loan			10 years
Interest Rate Swap Agreement [Member] | Senior Notes 3.48% [Member]
Derivative [Line Items]
Percentage of senior notes	3.48%
Maturity date of long-term loan	Mar. 24, 2025
Aggregate principal amount	$ 250,000,000