CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net loss	$ (10,408)	$ (6,333)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	15,720	10,442
Non-cash interest expense	5,305	0
Share-based compensation expense	7,278	6,488
Tax benefit from employees’ exercises of stock options and vestings of restricted stock awards	(445)	(660)
Deferred income taxes - net and uncertain tax positions	(12,078)	(668)
Accrued profit sharing and royalty expenses, net of payments	(27,016)	5,318
Reserve for Turing receivable	48,043	0
Provision for inventory reserves	6,777	(822)
Deferred revenue, net of revenue recognized	0	2,290
Other	0	(81)
Changes in certain assets and liabilities:
Accounts receivable	61,960	21,637
Inventory	(20,020)	(4,880)
Prepaid expenses and other assets	(1,572)	(10,048)
Accounts payable and accrued expenses	2,178	(1,631)
Other liabilities	1,735	2,605
Net cash provided by operating activities	77,457	23,657
Cash flows from investing activities:
Payment for business acquisition, net of cash acquired	0	(697,183)
Proceeds from sale of intangible assets	0	4,000
Purchases of property, plant and equipment	(10,882)	(4,223)
Payments for licensing agreements	(3,500)	0
Maturities of short-term investments	0	200,064
Net cash used in investing activities	(14,382)	(497,342)
Cash flows from financing activities:
Proceeds from issuance of term loan	0	435,000
Payment of deferred financing fees	0	(17,831)
Tax benefit from employees’ exercises of stock options and vestings of restricted stock awards	445	660
Proceeds from exercises of stock options and ESPP	7,662	3,065
Net cash provided by financing activities	8,107	420,894
Effect of exchange rate changes on cash and cash equivalents	645	1,011
Net increase (decrease) in cash and cash equivalents	71,827	(51,780)
Cash and cash equivalents, beginning of period	340,351	214,873
Cash and cash equivalents, end of period	412,178	163,093
Supplemental disclosure of cash flow information:
Cash paid for interest	7	2,317
Cash paid for income taxes	$ 2,475	$ 6,615