Share-Based Compensation (Compensation Expense Recognized in Condensed Consolidated Statement of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amounts Charged Against Earnings, before Tax Benefit	$ 15,204	$ 10,933	$ 29,972	$ 22,159
Tax Benefit Recognized in Earnings	5,336	4,242	10,520	8,598
Stock Option And Non Vested Share Compensation Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amounts Charged Against Earnings, before Tax Benefit	14,620	10,529	28,269	21,123
Associate Stock Purchase Plan Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amounts Charged Against Earnings, before Tax Benefit	1,094	868	2,377	1,699
Amounts Capitalized In Software Development Costs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amounts Charged Against Earnings, before Tax Benefit	$ (510)	$ (464)	$ (674)	$ (663)