Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
ASSETS:
Cash and cash equivalents	$ 663,344	$ 757,200
Accounts receivable, net	576,362	619,854
Inventories, net	199,842	181,952
Unbilled receivables	146,944	129,965
Prepaid income taxes	43,477	31,679
Other current assets	71,142	55,851
Total current assets	1,701,111	1,776,501
Property, plant and equipment, net	142,641	141,318
Goodwill	8,720,225	8,647,142
Other intangible assets, net	3,538,599	3,655,843
Deferred taxes	31,539	30,620
Other assets	79,173	73,503
Total assets	14,213,288	14,324,927
LIABILITIES AND STOCKHOLDERS' EQUITY:
Accounts payable	155,371	152,067
Accrued compensation	156,665	161,730
Deferred revenue	516,362	488,399
Other accrued liabilities	238,975	219,339
Income taxes payable	29,826	22,762
Current portion of long-term debt, net	401,297	400,975
Total current liabilities	1,498,496	1,445,272
Long-term debt, net of current portion	5,241,103	5,808,561
Deferred taxes	1,158,965	1,178,205
Other liabilities	114,238	104,024
Total liabilities	8,012,802	8,536,062
Commitments and contingencies (Note 9)
Common stock	1,041	1,036
Additional paid-in capital	1,554,562	1,489,067
Retained earnings	4,908,492	4,642,402
Accumulated other comprehensive earnings	(244,812)	(324,739)
Treasury stock	(18,797)	(18,901)
Total stockholders' equity	6,200,486	5,788,865
Total liabilities and stockholders' equity	$ 14,213,288	$ 14,324,927