Acquisitions (Incline Therapeutics, Inc.) (Details) (USD $)			1 Months Ended	6 Months Ended		1 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jan. 31, 2013 Incline Therapeutics, Inc. [Member]	Jun. 30, 2013 Incline Therapeutics, Inc. [Member]	Jan. 31, 2013 In Process Research and Development [Member] Incline Therapeutics, Inc. [Member]	Jan. 31, 2013 Maximum [Member] Incline Therapeutics, Inc. [Member]
Business Acquisition [Line Items]
Payments to acquire businesses			$ 155,200,000			$ 205,000,000
Additional payment			13,000,000
Escrow deposit			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 preliminary estimated 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
Intangible asset					250,000,000
Goodwill	135,627,000	14,671,000	99,956,000
Other assets			34,000
Total Assets			364,754,000
Liabilities Assumed:
Accrued expenses			1,413,000
Contingent purchase price			87,200,000
Deferred tax liabilities			89,442,000
Total Liabilities			178,055,000
Total cash price paid upon acquisition			$ 186,699,000