Change in Carrying Value of Company's Warranty Reserve (Detail) $ in Thousands	9 Months Ended
	Mar. 31, 2016 USD ($)
Guarantees [Abstract]
Balance-beginning of period	$ 3,251
Payments made during the period	(2,423)
Additional warranty liability recorded during the period	2,492
Warranty reserve acquired through acquisitions	82
Balance-end of period	$ 3,402