Accrued Warranties - Schedule of Accrued Warranties (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]
Accrued warranties, beginning of year	$ 155,472	$ 128,411
Warranty expense	94,310	75,445
Warranty payments (cash or in-kind)	(62,909)	(57,447)
Other	(23,542)	9,063
Accrued warranties, end of year	$ 163,331	$ 155,472