Share Repurchase Program (Detail) - USD ($)	3 Months Ended	14 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Aug. 31, 2014
Equity [Abstract]
Stock repurchase program, authorized amount			$ 50,000,000
Purchase of common stock, shares		1,318,987
Purchase of Treasury Stock	$ 6,284,000	$ 19,000,000