Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Apr. 04, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 329,534	$ 393,950
Investments and marketable securities	0	24,385
Accounts receivable, net	637,953	670,402
Inventories, net	405,469	394,176
Deferred income taxes	116,707	122,772
Income tax receivable	60,340	12,988
Prepaid expenses and other current assets	68,971	53,377
Total current assets	1,618,974	1,672,050
Property and equipment at cost, less accumulated depreciation and amortization	270,228	255,092
Goodwill	2,482,528	2,489,510
Other intangibles, net	961,704	1,029,293
Debt issuance cost	28,919	29,785
Other assets	92,277	93,121
Total assets	5,454,630	5,568,851
Current liabilities:
Accounts payable	284,730	326,524
Accrued liabilities	371,106	421,070
Deferred revenue	225,112	196,213
Current portion of long-term debt	0	7,522
Income taxes payable	14,903	4,518
Total current liabilities	895,851	955,847
Long-term debt	3,144,177	3,182,962
Long-term deferred tax liability	192,544	199,853
Long-term deferred revenue	107,687	115,847
Other long-term liabilities	88,373	74,434
Total liabilities	4,428,632	4,528,943
Stockholders' equity:
Preferred Stock, $.01 par value; authorized 10,000 shares; issued 0 shares	0	0
Additional paid-in capital	160,305	147,090
Treasury stock at cost, 20,322 and 20,498 shares, respectively	(629,403)	(634,664)
Retained earnings	1,510,010	1,535,307
Accumulated other comprehensive loss	(15,636)	(8,547)
Total stockholders' equity	1,025,998	1,039,908
Total liabilities and stockholders' equity	5,454,630	5,568,851
Class A Common Stock [Member]
Stockholders' equity:
Class A Common Stock, $.01 par value; authorized 150,000 shares; issued 72,152 shares	$ 722	$ 722