Note 9 - Accrued Expenses, Commitments and Contingencies (Detail) - The Company’s Accrued Expenses (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Payroll-related expenses	$ 14,708	$ 22,553
Product returns	23,951	23,440
Government rebates	25,097	33,794
Legal and professional fees	8,016	3,993
Clinical trial costs	400	1,610
Income taxes payable	39,346	1,541
Physician detailing sales force fees	2,888	1,471
Other	6,206	4,340
Total accrued expenses	$ 120,612	$ 92,742