CONSOLIDATED STATEMENTS OF INCOME (LOSS) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Revenues
Product sales	$ 2,255,050	$ 1,133,371	$ 789,026
Alliance and royalty	172,473	35,109	15,418
Service and other	35,927	12,757	15,986
Total revenues	2,463,450	1,181,237	820,430
Expenses
Cost of goods sold (exclusive of amortization of intangible assets shown separately below)	683,750	395,595	204,309
Cost of alliance and service revenues	43,082	10,155	13,849
Selling, general and administrative	572,472	276,546	167,633
Research and development	65,687	68,311	47,581
Amortization of intangible assets	557,814	219,758	104,730
Restructuring and integration costs	97,667	140,840	30,033
Acquired in-process research and development	109,200	89,245	59,354
Acquisition-related costs	32,964	38,262	5,596
Legal settlements	11,841	52,610	6,191
Acquisition-related contingent consideration	(10,986)
Total expenses	2,163,491	1,291,322	639,276
Operating income (loss)	299,959	(110,085)	181,154
Interest income	4,084	1,294	1,118
Interest expense	(333,041)	(84,307)	(24,881)
Write-down of deferred financing charges	(1,485)	(5,774)	(537)
Loss on extinguishment of debt	(36,844)	(32,413)
Foreign exchange and other	26,551	574	507
Gain (loss) on investments, net	22,776	(5,552)	17,594
(Loss) income before recovery of income taxes	(18,000)	(236,263)	174,955
Recovery of income taxes	(177,559)	(28,070)	(1,500)
Net income (loss)	$ 159,559	$ (208,193)	$ 176,455
Basic earnings (loss) per share (in dollars per share)	$ 0.52	$ (1.06)	$ 1.11
Diluted earnings (loss) per share (in dollars per share)	$ 0.49	$ (1.06)	$ 1.11
Weighted-average common shares (000's)
Basic (in shares)	304,655	195,808	158,236
Diluted (in shares)	326,119	195,808	158,510
Cash dividends declared per share (in dollars per share)		$ 1.280	$ 0.645