Derivative Instruments and Hedging Activity - Additional Information (Detail) - USD ($)				9 Months Ended
	Apr. 04, 2013	May. 30, 2012	Dec. 08, 2011	Sep. 30, 2015
Derivative [Line Items]
Interest rate swap agreement, effective date	Mar. 31, 2014	May 31, 2012	Feb. 29, 2012
Interest rate swap agreement, end date	Aug. 31, 2017	Apr. 14, 2016	Apr. 14, 2016
Interest rate swap agreement for a notional amount	$ 60,000,000.0	$ 37,000,000.0	$ 56,600,000.0
Duration of LIBOR	1 month	1 month	1 month
Percentage of fixed rate	0.985%	0.70%	0.9875%
Anticipated net losses, net of tax, currently recorded in accumulated other comprehensive loss reclassified into earnings				$ 300,000
Gain (loss) reclassification from accumulated OCI to income, estimate of time to transfer				12 months