Goodwill (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified							6 Months Ended
	Jun. 30, 2012	Feb. 17, 2012	Dec. 31, 2011	Jun. 30, 2012 Kali Laboratories, Inc. [Member]	Dec. 31, 2011 Kali Laboratories, Inc. [Member]	Dec. 31, 2004 Kali Laboratories, Inc. [Member]	Jun. 30, 2012 Anchen Acquisition [Member]	Dec. 31, 2011 Anchen Acquisition [Member]	Nov. 17, 2011 Anchen Acquisition [Member]	Jun. 30, 2012 Edict Acquisition [Member]	Feb. 17, 2012 Edict Acquisition [Member]	Dec. 31, 2011 Edict Acquisition [Member]
Goodwill [Line Items]
Acquisition cost						$ 142,800			$ 412,753	$ 36,600	$ 36,600
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles							(3,786)
Incremental goodwill		29,905					215,917				29,905
Number of common stock shares purchased on acquisition (in shares)						150,000
Value of common stock purchased						2,500
Goodwill	309,551		283,432	63,729	63,729	63,729	215,917	219,703		29,905		0
Post-close adjustment, consideration collected for Anchen							$ 3,786