Intangible Assets, Net (Schedule Of Intangible Assets, Net) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Intangible Assets [Line Items]
Intangible assets, net	$ 311,669	$ 95,467
Other intangible assets	414	801
Net of accumulated amortization	7,209	5,947
In-Process Research And Development Acquired In Anchen Acquisition [Member]
Intangible Assets [Line Items]
Intangible assets, net	126,700
Net of accumulated amortization	0	0
Developed Products Acquired In Anchen Acquisition [Member]
Intangible Assets [Line Items]
Intangible assets, net	83,550
Net of accumulated amortization	1,650	0
QOL Medical, LLC Asset Purchase Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	42,181	46,741
Net of accumulated amortization	12,540	7,980
Teva Pharmaceuticals, Inc. Asset Purchase Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	16,745
Net of accumulated amortization	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
Synthon Pharmaceuticals, Inc. Asset Purchase Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	9,600
Net of accumulated amortization	0
Covenant Not-To-Compete Acquired In Anchen Acquisition [Member]
Intangible Assets [Line Items]
Intangible assets, net	8,542
Net of accumulated amortization	358	0
Teva Pharmaceuticals, Inc. License And Distribution Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	6,000
Net of accumulated amortization	0
Genpharm, Inc. Distribution Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	1,085	1,807
Net of accumulated amortization	9,748	9,026
Trademark Licensed From Bristol-Myers Squibb Company [Member]
Intangible Assets [Line Items]
Intangible assets, net	852	2,567
Net of accumulated amortization	9,148	7,433
SVC Pharma LP License And Distribution Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	650	1,159
Net of accumulated amortization	3,034	2,525
MDRNA, Inc. Asset Purchase Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net	350	1,330
Net of accumulated amortization	1,750	770
BioAlliance Licensing Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net		19,441
Net of accumulated amortization	1,399	559
MonoSol Rx Licensing Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net		5,875
Net of accumulated amortization	350	125
Spectrum Development And Marketing Agreement [Member]
Intangible Assets [Line Items]
Intangible assets, net		746
Net of accumulated amortization	$ 25,000	$ 24,254