Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property and Equipment [Abstract]

Property, Plant and Equipment

	Estimated Useful Lives		As of December 31,
	In Years		2015			2014
			(in thousands)
Computers and software	3-5		$	8,457		$	9,468
Furniture and fixtures	5-7		6,269			7,032
Laboratory equipment	3-7		3,908			12,737
Leasehold improvements	7-10		240			8,117
Buildings	15-40		59,117			—
Land		—	2,664			—
Total property and equipment			80,655			37,354
Less: Accumulated depreciation and amortization			(59,428		)	(36,274		)
Net property and equipment			$	21,227		$	1,080