Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating activities
Net income (loss)	$ (24,285)	$ 161,019
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization of intangible assets	94,607	58,518
Share-based compensation	50,618	32,139
Intangible asset impairment	32,806	0
Depreciation	5,037	2,065
Acquired in-process research and development	202,000	4,988
Loss on disposal of property and equipment	0	47
Excess tax benefit from share-based compensation	(4,075)	(82)
Acquisition accounting inventory fair value step-up adjustments	10,477	3,143
Change in fair value of contingent consideration	0	12,900
Deferred income taxes	(36,246)	(17,962)
Provision for losses on accounts receivable and inventory	2,873	1,758
Loss on extinguishment and modification of debt	0	3,749
Other non-cash transactions	221	4,435
Changes in assets and liabilities:
Accounts receivable	(50,690)	(37,649)
Inventories	(10,184)	(3,445)
Prepaid expenses and other current assets	4,262	(11,300)
Other long-term assets	(5,775)	(3,421)
Accounts payable	(33,865)	6,670
Accrued liabilities	19,468	1,562
Income taxes payable	19,003	(19,086)
Deferred revenue	(918)	(776)
Contingent consideration	(14,900)	0
Other non-current liabilities	12,910	10,125
Net cash provided by operating activities	273,344	209,397
Investing activities
Acquisitions, net of cash acquired	(828,676)	0
Acquisition of in-process research and development	(202,000)	(4,988)
Purchases of property and equipment	(22,799)	(6,874)
Acquisition of intangible assets	0	(1,300)
Net cash used in investing activities	(1,053,475)	(13,162)
Financing activities
Net proceeds from issuance of debt	1,195,366	553,425
Proceeds from employee equity incentive and purchase plans and exercise of warrants	48,452	23,577
Share repurchases	(29,973)	(102,397)
Acquisition of noncontrolling interests	(136,950)	0
Payment of contingent consideration	(35,100)	0
Payment of employee withholding taxes related to share-based awards	(17,306)	(5,303)
Excess tax benefit from share-based compensation	4,075	82
Repayments of long-term debt	(7,090)	(464,517)
Repayments under revolving credit facility	(300,000)	0
Net cash provided by financing activities	721,474	4,867
Effect of exchange rates on cash and cash equivalents	(2,807)	164
Net increase (decrease) in cash and cash equivalents	(61,464)	201,266
Cash and cash equivalents, at beginning of period	636,504	387,196
Cash and cash equivalents, at end of period	$ 575,040	$ 588,462