Derivative Instruments (Details) (USD $) In Thousands	Jun. 30, 2011
Company's derivative instruments recorded at fair value
Total derivatives assets	$ 112
Total derivatives Liability	0
Foreign currency option contracts [Member] | Designated as Hedging Instrument [Member] | Other current assets [Member]
Company's derivative instruments recorded at fair value
Total derivatives assets	2
Foreign currency option contracts [Member] | Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Company's derivative instruments recorded at fair value
Total derivatives Liability	0
Foreign currency option contracts [Member] | Not Designated as Hedging Instrument [Member] | Other current assets [Member]
Company's derivative instruments recorded at fair value
Total derivatives assets	110
Foreign currency option contracts [Member] | Not Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Company's derivative instruments recorded at fair value
Total derivatives Liability	0
Designated as Hedging Instrument [Member]
Company's derivative instruments recorded at fair value
Total derivatives assets	2
Total derivatives Liability	0
Not Designated as Hedging Instrument [Member]
Company's derivative instruments recorded at fair value
Total derivatives assets	110
Total derivatives Liability	$ 0