Intangible Assets, Net (Schedule Of Intangible Assets, Net) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Intangible Assets [Line Items]
Intangible assets, net	$ 302,317	$ 311,669
Other intangible assets	403	414
Net of accumulated amortization	7,220	7,209
In-Process Research And Development Acquired In The Anchen Acquisition [Member]
Intangible Assets [Line Items]
Intangible assets, net	124,700	126,700
Net of accumulated amortization	0	0
Developed Products Acquired In Anchen Acquisition [Member]
Intangible Assets [Line Items]
Intangible assets, net	77,926	83,550
Net of accumulated amortization	7,274	1,650
QOL Medical, LLC Asset Purchase Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	41,041	42,181
Net of accumulated amortization	13,680	12,540
Teva Pharmaceuticals, Inc. Asset Purchase Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	15,973	16,745
Net of accumulated amortization	2,027	1,255
Glenmark Generics Limited And Glenmark Generics, Inc. USA Licensing Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	15,000	15,000
Net of accumulated amortization	0	0
Synthon Pharmaceuticals, Inc. Asset Purchase Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	9,600	9,600
Net of accumulated amortization	0	0
Covenant Not-To-Compete Acquired In The Anchen Acquisition [Member]
Intangible Assets [Line Items]
Intangible assets, net	7,800	8,542
Net of accumulated amortization	1,100	358
Teva Pharmaceuticals, Inc. License And Distribution Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	6,000	6,000
Net of accumulated amortization	0	0
In-Process Research And Development Acquired In The Edict Acquisition [Member]
Intangible Assets [Line Items]
Intangible assets, net	1,100
Net of accumulated amortization	0
Covenant Not-To-Compete Acquired In The Edict Acquisition, Net Of Accumulated [Member]
Intangible Assets [Line Items]
Intangible assets, net	750
Net of accumulated amortization	0
Genpharm, Inc. Distribution Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	904	1,085
Net of accumulated amortization	9,929	9,748
Trademark Licensed From Bristol-Myers Squibb Company [Member]
Intangible Assets [Line Items]
Intangible assets, net	472	852
Net of accumulated amortization	9,528	9,148
SVC Pharma LP License And Distribution Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	474	650
Net of accumulated amortization	3,210	3,034
MDRNA, Inc. Asset Purchase Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	174	350
Net of accumulated amortization	$ 1,926	$ 1,750