Income Taxes (Consolidated Effective Income Tax Rate Differed From The U.S. Federal Statutory Income Tax Rate) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Income Tax Expense (Benefit) [Abstract]
Income tax expense computed at the federal statutory rate	$ 46,602	$ 27,897	$ 20,522
Income tax expense computed at the federal statutory rate, percentage	35.00%	35.00%	35.00%
State income taxes, net of federal benefit	1,914	(232)	61
State income taxes, net of federal benefit, percentage	1.40%	(0.30%)	0.10%
Foreign rate differential	(7,960)	(6,539)	(3,151)
Foreign rate differential, percentage	(6.00%)	(8.20%)	(5.40%)
Change in valuation allowances	(4,708)	1,630	(8,174)
Change in valuation allowances, percentage	(3.50%)	2.00%	(13.90%)
Change in reserves	394	(7,655)	47
Change in reserves, percentage	0.30%	(9.60%)	0.10%
Research and development	(2,986)	(2,734)	(2,196)
Research and development, percentage	(2.20%)	(3.40%)	(3.70%)
Non-deductible losses	440	678	0
Non-deductible losses, percentage	0.30%	0.90%	0.00%
Income Tax Reconciliation, Prior Year Income Taxes	608	2,243	0
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes	0.50%	2.80%	0.00%
Other non-deductible expenses	2,074	393	1,004
Other non-deductible expenses, percentage	1.60%	0.50%	1.70%
Statutory tax rate changes	798	(1,047)	436
Statutory tax rate changes, percentage	0.50%	(1.30%)	0.70%
Other, net	2	1,914	1,299
Other, net, percentage	0.00%	2.40%	2.20%
Provision for income taxes	$ 37,178	$ 16,548	$ 9,848
Consolidated effective income tax rate, percentage	27.90%	20.80%	16.80%