Recent Accounting Pronouncements (Tables)

12 Months Ended

Dec. 31, 2018

Summary of Significant Accounting Policies [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

	Year Ended December 31, 2018
(In thousands)	As Reported			Effect of Change Higher/ (Lower)			Amounts under ASC 605
Consolidated Statement of Operations
Revenue:
Royalties	$	130,452		$	172,769		$	303,221
Product revenue	38,690			707			39,397
Contract and other revenue	62,059			(3,576		)	58,483
Total revenue	$	231,201		$	169,900		$	401,101
Costs and expenses:
Interest income and other income (expense), net	$	16,339		$	(27,235	)	$	(10,896	)
Provision for income taxes	$	87,329		$	—		$	87,329
Net loss	$	(157,957	)	$	142,665		$	(15,292	)

	December 31, 2018
(In thousands)	As Reported			Effect of Change Higher/ (Lower)			Amounts under ASC 605
Consolidated Balance Sheet
Assets:
Unbilled receivables	$	673,616		$	(673,616	)	$	—
Liabilities:
Deferred revenue	19,566			(1,243		)	18,323
Deferred tax liabilities (included in other long-term liabilities)	18,960			(2,079		)	16,881
Income taxes payable	93,670			(90,400		)	3,270
Stockholders’ equity:
Accumulated deficit	(204,294		)	(483,623		)	(687,917		)