Condensed Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 615,493	$ 610,430
Accounts receivable, net	499,042	511,538
Inventories, net	194,737	193,766
Deferred taxes	60,020	54,199
Unbilled receivables	107,743	96,409
Other current assets	44,787	45,763
Total current assets	1,521,822	1,512,105
Property, plant and equipment, net	110,973	110,876
Goodwill	5,088,040	4,710,691
Other intangible assets, net	2,142,299	1,978,729
Deferred taxes	35,177	27,496
Other assets	76,311	73,037
Total assets	8,974,622	8,412,934
Liabilities and Stockholders' Equity
Accounts payable	151,139	143,847
Accrued compensation	95,571	117,374
Deferred revenue	237,197	190,953
Other accrued liabilities	169,332	160,738
Income taxes payable	34,934	0
Deferred taxes	3,492	3,943
Current portion of long-term debt, net	7,719	11,092
Total current liabilities	699,384	627,947
Long-term debt, net of current portion	2,617,722	2,203,031
Deferred taxes	759,813	735,826
Other liabilities	90,308	90,770
Total liabilities	4,167,227	3,657,574
Commitments and contingencies (Note 9)
Common stock	1,025	1,021
Additional paid-in capital	1,339,750	1,325,338
Retained earnings	3,650,843	3,520,201
Accumulated other comprehensive earnings	(165,000)	(71,927)
Treasury stock	(19,223)	(19,273)
Total stockholders' equity	4,807,395	4,755,360
Total liabilities and stockholders' equity	$ 8,974,622	$ 8,412,934