Accrued And Other Current Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Accrued And Other Current Liabilities [Abstract]
Accrued sales and marketing expenses	$ 7,657	$ 6,192
Accrued taxes, tax reserves and interest	4,843	3,267
Accrued compensation and benefits	3,217	4,409
Accrued professional fees	1,441	666
Accrued clinical trial expense	312	797
Accrued manufacturing costs	971	251
Other	2,080	1,610
Accrued and other current liabilities, total	$ 20,521	$ 17,192