Shareholders' Equity - Activity in Shareholders' Equity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
	Mar. 11, 2025	Mar. 30, 2025	Mar. 31, 2024
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period		$ 489,148	$ 425,947
Net income		13,002	14,179
Issuances of stock related to restricted share units and performance shares		0	0
Cash dividends declared	$ (600)	(641)	(589)
Compensation expense related to share-based plans, net of forfeitures and shares received for tax withholdings		(3,581)	(355)
Pension liability adjustment		(695)	458
Foreign currency translation adjustment		15,834	(11,092)
Balance at end of period		$ 513,067	$ 428,548
Cash dividends declared, per common share (in dollars per share)		$ 0.01	$ 0.01
COMMON STOCK
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		58,304	58,112
Balance at beginning of period		$ 5,830	$ 5,811
Issuances of stock related to restricted share units and performance shares (in shares)		658	472
Issuances of stock related to restricted share units and performance shares		$ 66	$ 47
Compensation expense related to share-based plans, net of forfeitures and shares received for tax withholdings (in shares)		(352)	(311)
Compensation expense related to share-based plans, net of forfeitures and shares received for tax withholdings		$ (35)	$ (31)
Balance at end of period (in shares)		58,610	58,273
Balance at end of period		$ 5,861	$ 5,827
ADDITIONAL PAID-IN CAPITAL
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period		261,028	252,909
Issuances of stock related to restricted share units and performance shares		(66)	(47)
Compensation expense related to share-based plans, net of forfeitures and shares received for tax withholdings		(3,546)	(324)
Balance at end of period		257,416	252,538
RETAINED EARNINGS
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period		405,441	320,833
Net income		13,002	14,179
Cash dividends declared		(641)	(589)
Balance at end of period		417,802	334,423
PENSION LIABILITY
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period		(39,834)	(34,016)
Pension liability adjustment		(695)	458
Balance at end of period		(40,529)	(33,558)
FOREIGN CURRENCY TRANSLATION ADJUSTMENT
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period		(143,317)	(119,590)
Foreign currency translation adjustment		15,834	(11,092)
Balance at end of period		$ (127,483)	$ (130,682)