Fair Value Measurements (Schedule of Fair Value for Financial Assets and Liabilities Measure on Recurring Basis) (Details) (Recurring, USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Jun. 30, 2013
Level 1
Assets
Total	$ 17,909	$ 54,285
Level 1 | Foreign currency forward contracts
Assets
Foreign currency forward contracts	0	0
Level 1 | Money market funds
Assets
Investments	17,909	54,285
Level 1 | Corporate notes/bonds
Assets
Investments	0	0
Level 2
Assets
Total	43,792	109,831
Level 2 | Foreign currency forward contracts
Assets
Foreign currency forward contracts	79	21
Level 2 | Money market funds
Assets
Investments	0	0
Level 2 | Corporate notes/bonds
Assets
Investments	43,713	109,810
Level 3
Assets
Total	0	0
Level 3 | Foreign currency forward contracts
Assets
Foreign currency forward contracts	0	0
Level 3 | Money market funds
Assets
Investments	0	0
Level 3 | Corporate notes/bonds
Assets
Investments	0	0
Total
Assets
Total	61,701	164,116
Total | Foreign currency forward contracts
Assets
Foreign currency forward contracts	79	21
Total | Money market funds
Assets
Investments	17,909	54,285
Total | Corporate notes/bonds
Assets
Investments	$ 43,713	$ 109,810