Shareholders' Equity - Activity in Shareholders' Equity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jul. 02, 2023	Apr. 02, 2023	Jun. 30, 2024	Jul. 02, 2023
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period	$ 428,548	$ 425,947	$ 367,029	$ 361,537	$ 425,947	$ 361,537
Net income (loss)	22,558	14,179	15,797	(714)	36,737	15,083
Issuances of stock related to restricted share units and performance shares	0	0	0	0
Restricted stock issuances	947		707
Unrecognized compensation expense related to restricted stock awards	(946)		(708)
Cash dividends declared	(584)	(589)	(581)	(580)
Compensation expense related to share-based plans, net of forfeitures and shares received for tax withholdings	2,130	(355)	1,803	1,836
Foreign currency translation adjustment	(2,022)	(11,092)	1,361	4,930	(13,114)	6,291
Pension liability adjustment	534	458	(800)	(279)	992	(1,079)
Reclassification out of accumulated other comprehensive loss – discontinued cash flow hedge	0		300	299	0	599
Balance at end of period	$ 451,165	$ 428,548	$ 384,908	$ 367,029	$ 451,165	$ 384,908
Cash dividends declared, per common share (in dollars per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.01
COMMON STOCK
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period (in shares)	58,273	58,112	58,053	58,106	58,112	58,106
Balance at beginning of period	$ 5,827	$ 5,811	$ 5,805	$ 5,811	$ 5,811	$ 5,811
Issuances of stock related to restricted share units and performance shares (in shares)	4	472	5	79
Issuances of stock related to restricted share units and performance shares	$ 0	$ 47	$ 1	$ 8
Restricted stock issuances (in shares)	58		102
Restricted stock issuances	$ 6		$ 10
Compensation expense related to share-based plans, net of forfeitures and shares received for tax withholdings (in shares)	(32)	(311)	(48)	(132)
Compensation expense related to share-based plans, net of forfeitures and shares received for tax withholdings	$ (3)	$ (31)	$ (5)	$ (14)
Balance at end of period (in shares)	58,303	58,273	58,112	58,053	58,303	58,112
Balance at end of period	$ 5,830	$ 5,827	$ 5,811	$ 5,805	$ 5,830	$ 5,811
ADDITIONAL PAID-IN CAPITAL
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period	252,538	252,909	246,001	244,159	252,909	244,159
Issuances of stock related to restricted share units and performance shares	0	(47)	(1)	(8)
Restricted stock issuances	941		697
Unrecognized compensation expense related to restricted stock awards	(946)		(708)
Compensation expense related to share-based plans, net of forfeitures and shares received for tax withholdings	2,133	(324)	1,808	1,850
Balance at end of period	254,666	252,538	247,797	246,001	254,666	247,797
RETAINED EARNINGS
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period	334,423	320,833	277,345	278,639	320,833	278,639
Net income (loss)	22,558	14,179	15,797	(714)
Cash dividends declared	(584)	(589)	(581)	(580)
Balance at end of period	356,397	334,423	292,561	277,345	356,397	292,561
FOREIGN CURRENCY TRANSLATION ADJUSTMENT
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period	(130,682)	(119,590)	(133,845)	(138,775)	(119,590)	(138,775)
Foreign currency translation adjustment	(2,022)	(11,092)	1,361	4,930
Balance at end of period	(132,704)	(130,682)	(132,484)	(133,845)	(132,704)	(132,484)
PENSION LIABILITY
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period	(33,558)	(34,016)	(27,827)	(27,548)	(34,016)	(27,548)
Pension liability adjustment	534	458	(800)	(279)
Balance at end of period	$ (33,024)	$ (33,558)	(28,627)	(27,827)	$ (33,024)	(28,627)
CASH FLOW HEDGE
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Balance at beginning of period			(450)	(749)		(749)
Reclassification out of accumulated other comprehensive loss – discontinued cash flow hedge			300	299
Balance at end of period			$ (150)	$ (450)		$ (150)