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Shareholders' Equity (Narrative) (Details) - USD ($)
 1 Months Ended 12 Months Ended
Mar. 24, 2023
Dec. 30, 2022
Dec. 17, 2022
Oct. 05, 2022
Jul. 30, 2022
Jul. 06, 2022
Apr. 05, 2022
Dec. 31, 2021
Dec. 17, 2021
Sep. 24, 2021
Jun. 25, 2021
Mar. 26, 2021
Dec. 18, 2020
Sep. 25, 2020
Jun. 30, 2020
Dec. 31, 2012
Dec. 30, 2022
Dec. 31, 2021
Jan. 01, 2021
Jul. 30, 2002
Equity, Class of Treasury Stock [Line Items]                                        
Number of shares available for future issuance under the plans   2,853,757                             2,853,757      
Stock repurchase authorized                                       $ 5,000,000.0
Additional stock repurchase authorized         $ 287,200,000                       $ 120,000,000.0      
Amount available under repurchase plan   $ 14,700,000                             14,700,000      
Cumulative purchases   $ 272,500,000                             272,500,000      
Total cost                                 116,572,000 $ 13,040,000 $ 2,367,000  
Cost of shares withheld and not issued                                 3,225,000 21,566,000 $ 2,141,000  
Cumulative cash used for repurchase of stock                                 $ 119,800,000 $ 34,600,000    
Dividend declared                               $ 0.10 $ 0.44 $ 0.40 $ 0.38  
Dividends payable, date of record     Dec. 17, 2022 Oct. 05, 2022   Jul. 06, 2022 Apr. 05, 2022   Dec. 17, 2021 Sep. 24, 2021 Jun. 25, 2021 Mar. 26, 2021 Dec. 18, 2020 Sep. 25, 2020 Jun. 30, 2020          
Dividend payment date     Jan. 06, 2023                                  
Dividend payment                 $ 12,900,000 $ 12,900,000 $ 12,900,000 $ 12,900,000 $ 9,100,000 $ 9,100,000 $ 9,100,000   $ 13,434,000 $ 12,885,000 $ 9,147,000  
Dividend payable, year                 2021 2021 2021 2021 2020 2020 2020          
Forecast [Member]                                        
Equity, Class of Treasury Stock [Line Items]                                        
Dividend declared $ 0.12                                      
Dividend payment date Apr. 07, 2023                                      
Dividend payable, year 2023                                      
Dividend paid, date declared Mar. 24, 2023                                      
Director [Member]                                        
Equity, Class of Treasury Stock [Line Items]                                        
Repurchase of common stock                                 31,000      
Purchase price per share                                 $ 20.50      
Total cost                                 $ 600,000      
Share Repurchase Plan [Member]                                        
Equity, Class of Treasury Stock [Line Items]                                        
Repurchase of common stock                                 4,900,000 749,000    
Purchase price per share                                 $ 23.69 $ 17.42    
Total cost                                 $ 116,700,000 $ 13,000,000.0    
Share Purchase Plan [member]                                        
Equity, Class of Treasury Stock [Line Items]                                        
Tender Offer                                 4,900,000      
Credit facility and cash on hand                                 $ 60,000,000.0      
Purchase price per share                                 $ 23.71      
Common stock issued and outstanding                                 0.15      
Total cost                                 $ 115,900,000      
Cumulative [Member]                                        
Equity, Class of Treasury Stock [Line Items]                                        
Repurchase of common stock   33,200,000           28,300,000                        
Purchase price per share   $ 8.21           $ 5.51                        
Tax Withholding [Member]                                        
Equity, Class of Treasury Stock [Line Items]                                        
Shares withheld and not issued                                 200,000 1,100,000    
Cost of shares withheld and not issued                                 $ 3,200,000 $ 21,600,000    
Stock Option [Member]                                        
Equity, Class of Treasury Stock [Line Items]                                        
Percentage of eligible compensation allowed, per grant purchase                                 10.00%      
Interval between employee stock purchases                                 6 months      
Employee purchase price as percentage of trading value                                 95.00%      
Aggregate fair market value of shares purchased by an employee                                 $ 25,000      
Employee stock purchase plan, expiration date                                 Jul. 01, 2028      
Total number of shares available for purchase under the plans   241,447                             241,447      
Shares issued under ESPP                                 40,622 41,504 56,679  
Proceeds from ESPP                                 $ 800,000 $ 800,000 $ 800,000  
Additional shares authorized                                 250,000      
Number of shares available for future issuance under the plans               282,069                   282,069