Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Stock Repurchases) (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Average Price Per Share (in dollars per share)	$ 29.83	$ 36.59
Shares repurchased per cash flow	$ (6,764)	$ (57,357)
Common Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Repurchased common stock (in shares)	214,200	1,576,608
Cash purchase price	$ (6,390)	$ (57,684)
Purchases unsettled as of quarter end	0	681
Prior year purchases settled in current year	(374)	(354)
Shares repurchased per cash flow	$ (6,764)	$ (57,357)