Accounts Payable, Accrued Expenses and Other Current Liabilities (Tables)

9 Months Ended

Sep. 30, 2014

Payables and Accruals [Abstract]

Components of Accounts Payable, Accrued Expenses and Other Current Liabilities

Accounts payable, accrued expenses and other current liabilities consisted of the following:

	September 30, 2014		December 31, 2013
Clinical and preclinical activities	$	30,041	$	34,182
Royalties and milestones payable		24,773		6,377
Payroll and payroll-related		19,779		23,832
Accounts payable		12,356		3,290
Accrued professional services and other current liabilities		9,405		9,379
Taxes payable		9,310		—
Interest payable		3,396		1,698
Total	$	109,060	$	78,758