Accumulated Other Comprehensive Income (Loss) and Shareholders' Equity (Narrative) (Details) - USD ($)	1 Months Ended
	Aug. 31, 2019	Sep. 28, 2019	Dec. 29, 2018	Mar. 31, 2016
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)		$ (7,050,000)	$ (3,599,000)
Common Stock
Class of Stock [Line Items]
Stock repurchase program, remaining authorized repurchase amount		183,700,000
Interest rate swap
Class of Stock [Line Items]
Derivative, notional amount	$ 75,000,000			$ 150,000,000
Derivative, fixed interest rate	1.42%			1.29%
Proceeds from derivative instrument	$ 500,000
Gain from termination of interest rate swap	$ 500,000
Derivative asset		200,000
Derivative liability		300,000
Accumulated other comprehensive income (loss)		$ 300,000