Significant Accounting Policies Signifcant Accounting Policies (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Significant Accounting Policies [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners				74.00%
Net Income (Loss) Attributable to Noncontrolling Interest		$ (84,000)	$ 0	$ 0
Fair Value, Concentration of Risk, Cash and Cash Equivalents	14,700,000	14,700,000	25,200,000
Cash, Cash Equivalents and Available for Sale Securities [Abstract]
Cash Aggregated in Cash and Cash Equivalents	504,700,000	504,700,000	290,200,000
Other Cash Equivalents, at Carrying Value	14,700,000	14,700,000	25,200,000
Available for sale securities	50,875,000	50,875,000	25,130,000
Available-for-sale Securities, Current	50,900,000	50,900,000	25,100,000
Available-for-sale Securities [Abstract]
Available-for-sale Securities, Cost	50,865,000	50,865,000	25,126,000
Available-for-sale Securities, Fair Value	50,875,000	50,875,000	25,130,000
Available-for-sale Securities, Carrying Value	50,875,000	50,875,000	25,130,000
Available-for-sale Securities, Unrealized Gain	10,000	10,000	4,000
Restricted Cash [Abstract]
Restricted Cash and Cash Equivalents, Noncurrent	1,571,000	1,571,000	4,714,000
Restricted Cash Outstanding Letters of Credit Used For Collateral	1,000,000	1,000,000	4,100,000
Restricted Cash Guaranteed Investment Certificate Used For Collateral	300,000	300,000	300,000
Restricted Cash and Cash Equivalents, Foreign Tender	300,000	300,000
Revenue Recognition, Sales Returns, Reserve for Sales Returns	3,400,000
Accrual for Product Returns	1,100,000	1,100,000	3,900,000
Allowance for Chargebacks	14,800,000	14,800,000	15,600,000
Accrual for Rebates	1,200,000	1,200,000
Fee-for-service Accurals and Allowances	3,600,000	3,600,000	3,300,000
Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries		5,800,000	6,000,000	4,500,000
Advertising Expense		200,000	600,000	1,500,000
Minimum [Member]
Restricted Cash [Abstract]
Historic Volatility Period		12
Maximum [Member]
Restricted Cash [Abstract]
Historic Volatility Period		60
Angiomax [Member]
Restricted Cash [Abstract]
Deferred Revenue	800,000	800,000	400,000
Cleviprex [Member]
Restricted Cash [Abstract]
Deferred Revenue	1,600,000	1,600,000	200,000
Revenues		10,400,000	800,000	800,000
US Government Corporations and Agencies Securities [Member]
Cash, Cash Equivalents and Available for Sale Securities [Abstract]
Available for sale securities	7,097,000	7,097,000	901,000
Available-for-sale Securities [Abstract]
Available-for-sale Securities, Cost	7,093,000	7,093,000	901,000
Available-for-sale Securities, Fair Value	7,097,000	7,097,000	901,000
Available-for-sale Securities, Carrying Value	7,097,000	7,097,000	901,000
Available-for-sale Securities, Unrealized Gain	4,000	4,000	0
US Treasury Securities [Member]
Cash, Cash Equivalents and Available for Sale Securities [Abstract]
Available for sale securities	0	0	3,022,000
Available-for-sale Securities [Abstract]
Available-for-sale Securities, Cost	0	0	3,021,000
Available-for-sale Securities, Fair Value	0	0	3,022,000
Available-for-sale Securities, Carrying Value	0	0	3,022,000
Available-for-sale Securities, Unrealized Gain	0	0	1,000
Corporate Debt Securities [Member]
Cash, Cash Equivalents and Available for Sale Securities [Abstract]
Available for sale securities	43,778,000	43,778,000	21,207,000
Available-for-sale Securities [Abstract]
Available-for-sale Securities, Cost	43,772,000	43,772,000	21,204,000
Available-for-sale Securities, Fair Value	43,778,000	43,778,000	21,207,000
Available-for-sale Securities, Carrying Value	43,778,000	43,778,000	21,207,000
Available-for-sale Securities, Unrealized Gain	6,000	6,000	3,000
Integrated Commercialization Solutions, Inc [Member] | Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member]
Restricted Cash [Abstract]
Concentration Risk, Percentage		90.00%	96.00%	94.00%
Integrated Commercialization Solutions, Inc [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Restricted Cash [Abstract]
Concentration Risk, Percentage		89.00%	92.00%
Accounts Receivable, Gross	$ 92,300,000	$ 92,300,000	$ 85,100,000