Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 678,571	$ 610,430
Accounts receivable, net	481,599	511,538
Inventories, net	197,026	193,766
Deferred taxes	58,194	54,199
Unbilled receivables	107,999	96,409
Other current assets	63,893	45,763
Total current assets	1,587,282	1,512,105
Property, plant and equipment, net	112,374	110,876
Goodwill	5,111,662	4,710,691
Other intangible assets, net	2,108,964	1,978,729
Deferred taxes	34,599	27,496
Other assets	79,215	73,037
Total assets	9,034,096	8,412,934
Liabilities and Stockholders' Equity
Accounts payable	145,584	143,847
Accrued compensation	97,312	117,374
Deferred revenue	234,067	190,953
Other accrued liabilities	166,929	160,738
Deferred taxes	3,841	3,943
Current portion of long-term debt, net	7,208	11,092
Total current liabilities	654,941	627,947
Long-term debt, net of current portion	2,517,499	2,203,031
Deferred taxes	754,297	735,826
Other liabilities	88,010	90,770
Total liabilities	$ 4,014,747	$ 3,657,574
Commitments and contingencies (Note 9)
Common stock	$ 1,026	$ 1,021
Additional paid-in capital	1,368,335	1,325,338
Retained earnings	3,796,957	3,520,201
Accumulated other comprehensive earnings	(127,788)	(71,927)
Treasury stock	(19,181)	(19,273)
Total stockholders' equity	5,019,349	4,755,360
Total liabilities and stockholders' equity	$ 9,034,096	$ 8,412,934