Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
ASSETS:
Cash and cash equivalents	$ 778,511	$ 610,430
Accounts receivable, net	488,271	511,538
Inventories, net	189,868	193,766
Deferred taxes	0	54,199
Unbilled Receivables	122,042	96,409
Other current assets	39,355	45,763
Total current assets	1,618,047	1,512,105
Property, plant and equipment, net	105,510	110,876
Goodwill	5,824,726	4,710,691
Other intangible assets, net	2,528,996	1,978,729
Deferred taxes	31,532	27,496
Other assets	59,554	60,288
Total assets	10,168,365	8,400,185
LIABILITIES AND STOCKHOLDERS' EQUITY:
Accounts payable	139,737	143,847
Accrued Compensation	119,511	117,374
Deferred revenue	267,030	190,953
Other Accrued Liabilities, Current	168,513	160,738
Income taxes payable	18,532	0
Deferred taxes	0	3,943
Current portion of long-term debt, net	6,805	11,092
Total current liabilities	720,128	627,947
Long-term debt, net of current portion	3,264,417	2,190,282
Deferred taxes	810,856	735,826
Other liabilities	74,017	90,770
Total liabilities	$ 4,869,418	$ 3,644,825
Commitments and contingencies (Note 12)
Stockholders' equity:
Common stock	$ 1,028	$ 1,021
Additional paid-in capital	1,419,262	1,325,338
Retained earnings	4,110,530	3,520,201
Accumulated other comprehensive earnings	(212,779)	(71,927)
Treasury stock	(19,094)	(19,273)
Total stockholders' equity	5,298,947	4,755,360
Total liabilities and stockholders' equity	$ 10,168,365	$ 8,400,185