Other Long-Term Liabilities (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Other Long-Term Liabilities [Abstract]
Accrued lease liability	$ 10,700	$ 10,700
Accrued legal settlement	0	27,500
Uncertain tax position	12,424	12,213
Foreign currency hedge	5,025	993
Total	$ 28,149	$ 51,406