Acquisitions (Incline Therapeutics, Inc.) (Details) (USD $)	1 Months Ended	12 Months Ended
	Jan. 31, 2013	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2012
Assets Acquired:
Goodwill		$ 257,694,000	$ 286,532,000	$ 14,671,000
Incline Therapeutics, Inc. [Member]
Business Acquisition [Line Items]
Upfront cash consideration	155,200,000
Payments to Cadence	13,000,000
Escrow fund	18,500,000
Acquisition related costs		2,200,000
Estimated Purchase Price
Upfront cash consideration	186,699,000
Fair value of contingent purchase price	87,200,000
Total purchase price	273,899,000
Assets Acquired:
Cash and cash equivalents	1,563,000
Prepaid expenses and other current assets	624,000
Fixed assets, net	12,577,000
Goodwill	102,613,000
Other assets	34,000
Total Assets	367,411,000
Liabilities Assumed:
Accrued expenses	1,413,000
Contingent purchase price	87,200,000
Deferred tax liabilities	92,099,000
Total Liabilities	180,712,000
Total purchase price	186,699,000
Incline Therapeutics, Inc. [Member] | Maximum [Member]
Business Acquisition [Line Items]
Upfront cash consideration	205,000,000
Incline Therapeutics, Inc. [Member] | In Process Research and Development [Member]
Assets Acquired:
In-process research and development	$ 250,000,000