Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 710,198	$ 1,010,111
Marketable securities	317,354	374,904
Trade accounts receivable, net	586,249	532,832
Inventories	293,962	289,874
Prepaid expenses and other current assets	219,746	208,993
Total current assets	2,127,509	2,416,714
Property, plant and equipment, net	749,295	697,025
Intangible assets, net	4,627,817	4,707,914
Goodwill	5,049,321	5,047,885
Other assets	248,503	228,343
Total assets	12,802,445	13,097,881
Liabilities and Stockholders' Equity
Accounts payable	42,897	57,360
Accrued expenses	359,077	403,348
Deferred revenue	78,416	20,504
Current portion of long-term debt	35,358	166,365
Other current liabilities	87,865	62,038
Total current liabilities	603,613	709,615
Long-term debt, less current portioon	3,212,772	3,254,536
Contingent consideration	107,085	121,424
Facility lease obligation	172,970	151,307
Deferred Tax Liabilities, Net, Noncurrent	535,910	528,990
Other liabilities	107,818	73,393
Total liabilities	$ 4,740,168	$ 4,839,265
Commitments and contingencies (Note 17)
Stockholders' Equity:
Common stock, $.0001 par value; 290,000 shares authorized; 231,136 and 230,498 shares issued at March 31, 2016 and December 31, 2015, respectively	$ 23	$ 23
Additional paid-in capital	7,793,056	7,726,560
Treasury stock, at cost, 6,934 and 4,851 shares at March 31, 2016 and December 31, 2015, respectively	(1,007,178)	(710,663)
Accumulated other comprehensive income	3,815	62,301
Retained earnings	1,272,561	1,180,395
Total stockholders' equity	8,062,277	8,258,616
Total liabilities and stockholders' equity	$ 12,802,445	$ 13,097,881