Schedule of Reconciliation of Income Tax Expense at Statutory Federal Rate to Reported Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income Tax Rate Reconciliation [Line Items]
Taxes at statutory rate, amount									$ 15,974	$ 27,120	$ 30,967
State income taxes-net of federal benefit, amount									254	168	(187)
Taxes on non U.S. earnings, amount									(6,672)	(6,991)	(9,841)
Settlement of unrecognized tax benefits, amount											(842)
Research and manufacturing incentive deductions, amount									(2,190)	(1,458)	(2,079)
Other, amount									(41)	(73)	(258)
Total Income Tax Expense	$ 1,502	$ 494	$ 2,086	$ 3,243	$ 4,922	$ 2,861	$ 6,721	$ 4,262	$ 7,325	$ 18,766	$ 17,760
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%)	(9.00%)	(11.00%)
Settlement of unrecognized tax benefits, rate											(1.00%)
Research and manufacturing incentive deductions, rate									(5.00%)	(2.00%)	(3.00%)
Total Effective Income Tax, rate									16.00%	24.00%	20.00%