Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Reclassifications from Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax (expense) or benefit	$ (25,399)	$ 19,286	$ (43,273)
Net income	93,326	89,898	85,638
Reclassifications from accumulated other comprehensive income (loss) | Derivative financial instruments | Interest rate swap
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest (expense) or income	1,045	(330)	(993)
Tax (expense) or benefit	(246)	121	365
Net income	$ 799	$ (209)	$ (628)