Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Stock Repurchases) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Average Price Per Share (in dollars per share)	$ 38.14	$ 39.02
Shares repurchased per cash flow	$ (23,869)	$ (7,345)
Common Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Repurchased common stock (in shares)	647,290	152,822
Cash purchase price	$ (24,685)	$ (5,964)
Purchases unsettled as of quarter end	1,170	0
Prior year purchases settled in current year	(354)	(1,381)
Shares repurchased per cash flow	$ (23,869)	$ (7,345)