Intangible Assets and Goodwill (Tables)

3 Months Ended

Mar. 31, 2017

Intangible Assets and Goodwill

Schedule of intangible assets, net of accumulated amortization, and goodwill

		March 31, 2017							December 31, 2016
	Estimated Life	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
	(In thousands)
Intangible Assets:
IPR&D	Indefinite	$	73,490	$	—		$	73,490	$	73,490	$	—		$	73,490
Amgen Amendment	16 years	14,500		(6,727		)	7,773		14,500		(6,503		)	7,997
Total Intangible Assets		$	87,990	$	(6,727	)	$	81,263	$	87,990	$	(6,503	)	$	81,487
Goodwill	Indefinite	$	90,976	$	—		$	90,976	$	90,976	$	—		$	90,976