Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Earnings	$ 248,559	$ 222,947
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	141,806	122,232
Share-based compensation expense	28,269	21,123
Provision for deferred income taxes	2,687	1,470
Changes in assets and liabilities (net of businesses acquired):
Receivables, net	(15,218)	38,985
Inventory	579	450
Prepaid expenses and other	11,717	(28,002)
Accounts payable	(518)	5,471
Accrued income taxes	(4,864)	11,025
Deferred revenue	17,801	(12,166)
Other accrued liabilities	(26,760)	6,620
Net cash provided by operating activities	404,058	390,155
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital purchases	(131,997)	(134,987)
Capitalized software development costs	(86,666)	(77,907)
Purchases of investments	(500,903)	(537,328)
Sales and maturities of investments	572,293	533,606
Purchase of other intangibles	(7,190)	(35,772)
Acquisition of businesses, net of cash acquired	(7,476)	(67,802)
Net cash used in investing activities	(161,939)	(320,190)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of long-term debt and capital lease obligations	(69)	(9,750)
Proceeds from excess tax benefits from share-based compensation	20,642	21,675
Proceeds from exercise of options	14,175	16,975
Treasury stock purchases	(217,082)	(141,791)
Contingent consideration payments for acquisition of businesses	0	(800)
Cash grants	48,000	0
Other	2,894	475
Net cash used in financing activities	(131,440)	(113,216)
Effect of exchange rate changes on cash and cash equivalents	2,204	(3,105)
Net increase (decrease) in cash and cash equivalents	112,883	(46,356)
Cash and cash equivalents at beginning of period	202,377	317,120
Cash and cash equivalents at end of period	315,260	270,764
Summary of acquisition transactions:
Fair value of net tangible assets acquired	(1,509)	1,496
Fair value of intangible assets acquired	3,800	25,489
Fair value of goodwill	16,785	60,452
Less: Fair value of contingent liability payable	(11,600)	(18,982)
Cash paid for acquisitions	7,476	68,455
Cash acquired	$ 0	$ (653)