Derivative Instruments - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended	9 Months Ended
	Jun. 30, 2014 Tranches	Sep. 27, 2014	Sep. 27, 2014	Sep. 26, 2015 Scenario, Forecast [Member]
Derivatives And Hedging Activities [Line Items]
Number of tranches	2
Gain (loss) on accumulated other comprehensive income		$ 0	$ 0	$ (1,000,000)
Losses on the forward interest rate swaps designated in a hedging relationship expected to be reclassified from accumulated other comprehensive loss into earnings during the next 12 months.		$ 1,077,980	$ 1,077,980