Changes in Accumulated Other Comprehensive Income ("AOCI") by Component, Net of Tax (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI, net of tax Beginning balance	$ 19,406	$ 15,600	$ 10,238
Other comprehensive income before reclassifications	(10,741)	3,806	5,362
Net current-period other comprehensive income	(10,741)	3,806	5,362
AOCI, net of tax Ending balance	8,665	19,406	15,600
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI, net of tax Beginning balance	17,963	15,600	10,238
Other comprehensive income before reclassifications	(8,497)	2,363	5,362
Net current-period other comprehensive income	(8,497)	2,363	5,362
AOCI, net of tax Ending balance	9,466	17,963	$ 15,600
Defined Benefit Pension Plan
Accumulated Other Comprehensive Income Loss [Line Items]
AOCI, net of tax Beginning balance	1,443
Other comprehensive income before reclassifications	(2,244)	1,443
Net current-period other comprehensive income	(2,244)	1,443
AOCI, net of tax Ending balance	$ (801)	$ 1,443