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Shareholders' Equity (Narrative) (Details)																1 Months Ended	12 Months Ended
Shareholders' Equity (Narrative) (Details)	Mar. 22, 2024 $ / shares	Jan. 31, 2024 $ / shares	Jan. 05, 2024	Oct. 06, 2023	Jul. 07, 2023	Apr. 07, 2023	Jan. 06, 2023	Oct. 06, 2022	Jul. 30, 2022 USD ($)	Jul. 08, 2022	Apr. 08, 2022	Dec. 30, 2021	Oct. 08, 2021	Jul. 09, 2021	Apr. 08, 2021	Dec. 31, 2012 $ / shares	Dec. 29, 2023 USD ($) $ / shares shares	Dec. 30, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Jul. 30, 2002 USD ($)
Equity, Class of Treasury Stock [Line Items]
Number of shares available for future issuance under the plans \| shares																	2,300,000
Stock repurchase authorized																				$ 5,000,000.0
Additional stock repurchase authorized									$ 287,200,000									$ 120,000,000
Amount available under repurchase plan																	$ 13,900,000
Cumulative purchases																	273,200,000
Total cost																	734,000	116,572,000	$ 13,040,000
Cost of shares withheld and not issued																	3,782,000	3,225,000	$ 21,566,000
Cumulative cash used for repurchase of stock																	$ 4,500,000	$ 119,800,000
Dividend declared \| $ / shares		$ 0.11														$ 0.10	$ 0.44	$ 0.44	$ 0.4
Dividend payment date			Jan. 05, 2024	Oct. 06, 2023	Jul. 07, 2023	Apr. 07, 2023	Jan. 06, 2023	Oct. 06, 2022		Jul. 08, 2022	Apr. 08, 2022	Dec. 30, 2021	Oct. 08, 2021	Jul. 09, 2021	Apr. 08, 2021
Dividend payment																	$ 11,971,000	$ 13,434,000	$ 12,885,000
Forecast [Member]
Equity, Class of Treasury Stock [Line Items]
Dividend declared \| $ / shares	$ 0.11
Dividends payable, date of record	Mar. 22, 2024
Dividend payment date	Apr. 05, 2024
Dividend payable, year	2024
Director [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock \| shares																		31,000
Purchase price per share \| $ / shares																	$ 18.96	$ 20.5
Total cost																	$ 700,000	$ 600,000
Share Repurchase Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock \| shares																	37,000	4,900,000
Purchase price per share \| $ / shares																	$ 18.96	$ 23.69
Total cost																	$ 700,000	$ 116,600,000
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
Purchase price per share \| $ / shares																		$ 23.72
Common stock issued and outstanding																		0.15
Total cost																		$ 116,000,000
Cumulative [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock \| shares																	33,200,000	33,200,000
Purchase price per share \| $ / shares																	$ 8.22	$ 8.21
Tax Withholding [Member]
Equity, Class of Treasury Stock [Line Items]
Shares withheld and not issued \| shares																	174,000	164,000
Cost of shares withheld and not issued																	$ 3,800,000	$ 3,200,000
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 \| shares																	197,779
Shares issued under ESPP \| shares																	43,668	40,622	41,504
Proceeds from ESPP																	$ 900,000	$ 800,000	$ 800,000
Additional shares authorized \| shares																	250,000