Schedule of Reconciliation of Income Tax Expense at Statutory Federal Rate to Reported Income Tax Expense (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Taxes at statutory rate, amount									$ 27,689	$ 15,974	$ 27,120
State income taxes-net of federal benefit, amount									(196)	254	168
Taxes on non U.S. earnings, amount									(11,687)	(6,672)	(6,991)
Research and manufacturing incentive deductions, amount									(2,573)	(2,190)	(1,458)
Other, amount									(96)	(41)	(73)
Total Income Tax Expense	$ 5,464	$ 773	$ 2,692	$ 4,208	$ 1,502	$ 494	$ 2,086	$ 3,243	$ 13,137	$ 7,325	$ 18,766
Taxes at statutory rate									35.00%	35.00%	35.00%
State income taxes-net of federal benefit, rate										1.00%
Taxes on non U.S. earnings, rate									(15.00%)	(15.00%)	(9.00%)
Research and manufacturing incentive deductions, rate									(3.00%)	(5.00%)	(2.00%)
Total Effective Income Tax, rate									17.00%	16.00%	24.00%