Facility Consolidation and Other Cost Reduction Actions (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Early Development
Restructuring activity
Total charges	$ 651,000	$ 2,342,000	$ 2,281,000	$ 5,895,000
Late-Stage Development
Restructuring activity
Total charges	3,150,000	1,363,000	3,396,000	3,261,000
Restructuring Activities
Disclosure of restructuring cost
Expected restructuring costs			56,000,000
Cumulative restructuring costs			52,100,000
Restructuring activity
Restructuring reserve, Balance at the beginning of period			5,220,000
Total charges	3,278,000	3,359,000	4,903,000	9,529,000
Cash payments			(5,556,000)
Other			(1,000)
Restructuring reserve, Balance at the end of period	4,566,000		4,566,000
Restructuring Activities | Early Development
Disclosure of restructuring cost
Expected restructuring costs			38,000,000
Cumulative restructuring costs			36,600,000
Restructuring activity
Total charges	(83,000)	1,316,000	801,000	4,869,000
Restructuring Activities | Late-Stage Development
Disclosure of restructuring cost
Expected restructuring costs			10,000,000
Cumulative restructuring costs			8,600,000
Restructuring activity
Total charges	3,062,000	1,363,000	3,308,000	3,261,000
Restructuring Activities | Corporate expenses
Disclosure of restructuring cost
Expected restructuring costs			8,000,000
Cumulative restructuring costs			6,900,000
Restructuring activity
Total charges	299,000	680,000	794,000	1,399,000
Restructuring Activities | Restructuring and other cost reduction actions included in selling, general and administrative expenses
Disclosure of restructuring cost
Cumulative restructuring costs			47,100,000
Restructuring activity
Total charges	3,300,000	3,400,000	4,900,000	8,000,000
Restructuring Activities | Restructuring and other cost reduction actions included in depreciation and amortization
Disclosure of restructuring cost
Cumulative restructuring costs			5,000,000
Restructuring activity
Total charges				1,500,000
Restructuring Activities | Employee separation costs
Disclosure of restructuring cost
Expected restructuring costs			34,000,000
Cumulative restructuring costs			32,600,000
Restructuring activity
Restructuring reserve, Balance at the beginning of period			2,304,000
Total charges	3,238,000	2,148,000	4,622,000	4,145,000
Cash payments			(4,540,000)
Other			(1,000)
Restructuring reserve, Balance at the end of period	2,385,000		2,385,000
Restructuring Activities | Lease and facility exit costs
Disclosure of restructuring cost
Expected restructuring costs			5,000,000
Cumulative restructuring costs			4,400,000
Restructuring activity
Restructuring reserve, Balance at the beginning of period			2,774,000
Total charges	(222,000)	(39,000)	(222,000)	627,000
Cash payments			(487,000)
Restructuring reserve, Balance at the end of period	2,065,000		2,065,000
Restructuring Activities | Accelerated depreciation and amortization
Disclosure of restructuring cost
Expected restructuring costs			5,000,000
Cumulative restructuring costs			5,000,000
Restructuring activity
Total charges				1,497,000
Restructuring Activities | Other costs
Disclosure of restructuring cost
Expected restructuring costs			12,000,000
Cumulative restructuring costs			10,100,000
Restructuring activity
Restructuring reserve, Balance at the beginning of period			142,000
Total charges	262,000	1,250,000	503,000	3,260,000
Cash payments			(529,000)
Restructuring reserve, Balance at the end of period	116,000		116,000
Other Cost Reduction Actions
Restructuring activity
Other cost reductions	900,000	2,600,000	3,400,000	2,600,000
Other Cost Reduction Actions | Early Development
Restructuring activity
Other cost reductions	700,000	1,000,000	1,500,000	1,000,000
Other Cost Reduction Actions | Late-Stage Development
Restructuring activity
Other cost reductions	100,000		100,000
Other Cost Reduction Actions | Corporate expenses
Restructuring activity
Other cost reductions	100,000	1,600,000	1,900,000	1,600,000
Other Cost Reduction Actions | Restructuring and other cost reduction actions included in selling, general and administrative expenses
Restructuring activity
Other cost reductions	500,000	2,000,000	2,600,000	2,000,000
Other Cost Reduction Actions | Restructuring and other cost reduction actions included in depreciation and amortization
Restructuring activity
Other cost reductions	$ 400,000	$ 600,000	$ 800,000	$ 600,000