Consolidated Statements of Shareholders' Equity (unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Preferred stock [Member]	Common stock [Member]	Capital in excess of par value [Member]	Retained earnings [Member]	Accumulated other comprehensive loss [Member]
Beginning Balance at Jan. 02, 2021	$ 607,790	$ 0	$ 32	$ 371,778	$ 270,320	$ (34,340)
Beginning Balance, Shares at Jan. 02, 2021		0	32,120
Shares issued, restricted stock	36			36
Shares issued, restricted stock, Shares			43
Shares issued, other compensation, Shares			19
Shares issued, ESPP	1,318			1,318
Shares issued, ESPP, Shares			32
Shares issued, acquisition	14,014			14,014
Shares issued, acquisition, Shares			197
Stock-based compensation	6,233			6,233
Cancellation of shares for payment of employee tax withholding	(1,335)			(1,335)
Cancellation of shares for payment of employee tax withholding, Shares			(4)
Shares repurchased, shares			(7)
Shares repurchased	(583)			(583)
Dividends declared	(8,719)				(8,719)
Net income	81,042				81,042
Other comprehensive loss	(11,350)					(11,350)
Ending Balance at Oct. 02, 2021	688,446	$ 0	$ 32	391,461	342,643	(45,690)
Ending Balance, Shares at Oct. 02, 2021		0	32,400
Beginning Balance at Jul. 03, 2021	658,345	$ 0	$ 32	379,299	317,799	(38,785)
Beginning Balance, Shares at Jul. 03, 2021		0	32,249
Shares issued, restricted stock	18			18
Shares issued, restricted stock, Shares			12
Shares issued, other compensation, Shares			5
Shares issued, other compensation	0
Shares issued, ESPP	522			522
Shares issued, ESPP, Shares			7
Shares issued, acquisition	10,390			10,390
Shares issued, acquisition, Shares			134
Stock-based compensation	2,050			2,050
Cancellation of shares for payment of employee tax withholding	(235)			(235)
Shares repurchased, shares			(7)
Shares repurchased	(583)			(583)
Dividends declared	(2,916)				(2,916)
Net income	27,760				27,760
Other comprehensive loss	(6,905)					(6,905)
Ending Balance at Oct. 02, 2021	688,446	$ 0	$ 32	391,461	342,643	(45,690)
Ending Balance, Shares at Oct. 02, 2021		0	32,400
Beginning Balance at Jan. 01, 2022	708,963	$ 0	$ 32	394,641	363,279	(48,989)
Beginning Balance, Shares at Jan. 01, 2022		0	32,407
Shares issued, restricted stock	112		$ 1	111
Shares issued, restricted stock, Shares			88
Shares issued, ESPP	1,571			1,571
Shares issued, ESPP, Shares			24
Shares issued, acquisition	1,573			1,573
Shares issued, acquisition, Shares			25
Stock-based compensation	6,212			6,212
Cancellation of shares for payment of employee tax withholding	(2,559)			(2,559)
Dividends declared	(8,779)				(8,779)
Net income	80,892				80,892
Other comprehensive loss	(36,548)					(36,548)
Ending Balance at Oct. 01, 2022	751,437	$ 0	$ 33	401,549	435,392	(85,537)
Ending Balance, Shares at Oct. 01, 2022		0	32,544
Beginning Balance at Jul. 02, 2022	747,024	$ 0	$ 33	397,643	417,944	(68,596)
Beginning Balance, Shares at Jul. 02, 2022		0	32,504
Shares issued, restricted stock	0
Shares issued, restricted stock, Shares			5
Shares issued, ESPP	511			511
Shares issued, ESPP, Shares			10
Shares issued, acquisition	1,573			1,573
Shares issued, acquisition, Shares			25
Stock-based compensation	1,840			1,840
Cancellation of shares for payment of employee tax withholding	(18)			(18)
Dividends declared	(2,930)				(2,930)
Net income	20,378				20,378
Other comprehensive loss	(16,941)					(16,941)
Ending Balance at Oct. 01, 2022	$ 751,437	$ 0	$ 33	$ 401,549	$ 435,392	$ (85,537)
Ending Balance, Shares at Oct. 01, 2022		0	32,544