Product Revenues, Net (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012 M
Product revenues, net
Discount rate for payments made within 30 days (as a percent)	2.00%
Period prior to the labeled expiration date in which distributors have right to return unopened, unprescribed product (in months)	6
Period after the labeled expiration date in which distributors have right to return unopened, unprescribed product (in months)	12
Activity related to product revenues allowances and reserve categories
Balance at the beginning of the period	$ 69,363
Provision related to current period sales	219,854
Adjustments related to prior period sales	2,832
Credits/payments made	(218,718)
Balance at the end of the period	73,331
Trade Allowances
Activity related to product revenues allowances and reserve categories
Balance at the beginning of the period	11,162
Provision related to current period sales	44,433
Credits/payments made	(50,914)
Balance at the end of the period	4,681
Rebates, Chargebacks and Discounts
Activity related to product revenues allowances and reserve categories
Balance at the beginning of the period	52,659
Provision related to current period sales	159,502
Adjustments related to prior period sales	2,760
Credits/payments made	(150,404)
Balance at the end of the period	64,517
Product Returns
Activity related to product revenues allowances and reserve categories
Balance at the beginning of the period	340
Provision related to current period sales	579
Credits/payments made	(484)
Balance at the end of the period	435
Other Incentives
Activity related to product revenues allowances and reserve categories
Balance at the beginning of the period	5,202
Provision related to current period sales	15,340
Adjustments related to prior period sales	72
Credits/payments made	(16,916)
Balance at the end of the period	$ 3,698