Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 173,213	$ 150,360
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	134,833	119,126
Share-based compensation expense	17,500	17,811
Provision for deferred income taxes	11,214	7,978
Changes in assets and liabilities (net of businesses acquired):
Receivables, net	(34,236)	101,787
Inventory	(4,266)	(8,452)
Prepaid expenses and other	27,270	(4,751)
Accounts payable	(21,908)	(23,060)
Accrued income taxes	768	11,201
Deferred revenue	24,269	(32,309)
Other accrued liabilities	(25,072)	(3,486)
Net cash provided by operating activities	303,585	336,205
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital purchases	(88,065)	(99,351)
Capitalized software development costs	(71,092)	(75,340)
Purchases of investments	(53,340)	(157,744)
Sales and maturities of investments	115,030	32,473
Purchase of other intangibles	(6,385)	(3,592)
Acquisition of businesses, net of cash acquired	0	0
Net cash used in investing activities	(103,852)	(303,554)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of options	10,683	10,421
Payments to taxing authorities in connection with shares directly withheld from associates	(5,314)	(419)
Treasury stock purchases	0	(150,056)
Contingent consideration payments for acquisition of businesses	(1,000)	0
Net cash provided by (used in) financing activities	4,369	(140,054)
Effect of exchange rate changes on cash and cash equivalents	3,489	870
Net increase (decrease) in cash and cash equivalents	207,591	(106,533)
Cash and cash equivalents at beginning of period	170,861	402,122
Cash and cash equivalents at end of period	378,452	295,589
Summary of acquisition transactions:
Fair value of tangible assets acquired	0	(10,200)
Fair value of intangible assets acquired	0	(25,000)
Fair value of goodwill	0	46,940
Less: Fair value of liabilities assumed	0	(11,740)
Net cash used	$ 0	$ 0