Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands		3 Months Ended		12 Months Ended
	Apr. 03, 2021	Apr. 02, 2021	Mar. 27, 2020	Jan. 01, 2021
Equity, Class of Treasury Stock [Line Items]
Total cost		$ 2,110,000	$ 1,006,000
Amount available under repurchase plan		2,200,000
Stock repurchase authorized		$ 147,200,000
Shares repurchased for employee net vesting obligations, shares		108	125
Shares repurchased for employee net vesting obligations, value		$ 1,600,000	$ 2,000,000.0
Dividend declared		$ 0.40
Dividend payment		$ 3,254,000	$ 13,000
Minimum [Member]
Equity, Class of Treasury Stock [Line Items]
Dividend declared				$ 0.36
Maximum [Member]
Equity, Class of Treasury Stock [Line Items]
Dividend declared				$ 0.38
Subsequent Event [Member]
Equity, Class of Treasury Stock [Line Items]
Amount available under repurchase plan	$ 200,000
Stock repurchase additional authorized amount	$ 20,000.0
Dividends payable, date declared, year	2021
Dividends payable, date to be paid, year and month	2021-07
Share Repurchase Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock		136	73
Purchase price per share		$ 15.45	$ 13.79
Total cost		$ 2,100,000	$ 1,000,000.0
Share Repurchase Plan [Member] | Subsequent Event [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock	116
Purchase price per share	$ 17.17
Total cost	$ 2,000,000.0
Stock Appreciation Rights (“SARs”) [Member]
Equity, Class of Treasury Stock [Line Items]
SARs outstanding		2,900
Exercise price		$ 4.00
Expiration date		Feb. 08, 2022