Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 523,033	$ 778,511
Accounts receivable, net	514,616	488,271
Inventories, net	196,321	189,868
Unbilled receivables	120,746	122,042
Prepaid Taxes	31,124	0
Other current assets	46,492	39,355
Total current assets	1,432,332	1,618,047
Property, plant and equipment, net	106,212	105,510
Goodwill	5,975,803	5,824,726
Other intangible assets, net	2,622,157	2,528,996
Deferred taxes	31,254	31,532
Other assets	56,650	59,554
Total assets	10,224,408	10,168,365
Liabilities and Stockholders' Equity
Accounts payable	140,421	139,737
Accrued compensation	91,288	119,511
Deferred revenue	275,230	267,030
Other accrued liabilities	185,305	168,513
Income taxes payable	80,879	18,532
Current portion of long-term debt, net	6,365	6,805
Total current liabilities	779,488	720,128
Long-term debt, net of current portion	3,105,340	3,264,417
Deferred taxes	826,425	810,856
Other liabilities	71,920	74,017
Total liabilities	$ 4,783,173	$ 4,869,418
Commitments and contingencies (Note 9)
Common stock	$ 1,031	$ 1,028
Additional paid-in capital	1,438,695	1,419,262
Retained earnings	4,231,589	4,110,530
Accumulated other comprehensive earnings	(211,036)	(212,779)
Treasury stock	(19,044)	(19,094)
Total stockholders' equity	5,441,235	5,298,947
Total liabilities and stockholders' equity	$ 10,224,408	$ 10,168,365