Shareholders' Equity (Narrative) (Details) - USD ($)	1 Months Ended	3 Months Ended		12 Months Ended
	Apr. 30, 2022	Apr. 01, 2022	Apr. 02, 2021	Dec. 31, 2021	Apr. 02, 2022
Equity, Class of Treasury Stock [Line Items]
Total cost		$ 635,000	$ 2,110,000
Amount available under repurchase plan		10,600,000
Stock repurchase authorized		$ 167,200,000
Shares repurchased for employee net vesting obligations, shares		126,000	108,000
Shares repurchased for employee net vesting obligations, value		$ 2,400,000	$ 1,600,000
Dividend declared		$ 0.44
Dividend payment		$ 3,474,000	$ 3,254,000
Subsequent Event [Member]
Equity, Class of Treasury Stock [Line Items]
Dividend payment	$ 3,500,000
Dividends payable, date declared, year					2022
Dividends payable, date to be paid, year and month					2022-07
Minimum [Member]
Equity, Class of Treasury Stock [Line Items]
Dividend declared				$ 0.38
Maximum [Member]
Equity, Class of Treasury Stock [Line Items]
Dividend declared				$ 0.40
Share Repurchase Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock		31,000	136,000
Purchase price per share		$ 20.50	$ 15.45
Total cost		$ 600,000	$ 2,100,000
Stock Appreciation Rights ("SARs") [Member]
Equity, Class of Treasury Stock [Line Items]
SARs outstanding		0		2,900,000
Exercise price				$ 4.00