Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2021	Oct. 02, 2020	Oct. 01, 2021	Oct. 02, 2020
Statement of Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax	$ 257	$ 330	$ 773	$ 990
Net earnings (loss)	14,667	(38,507)	34,507	(38,322)
Foreign currency translation adjustments and other	(4,342)	9,130	12,890	6,599
Change in pension and post-retirement benefit plan liabilities, net of tax expense of $257 and $330 and $773 and $990, respectively	868	1,107	2,609	3,321
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(3,474)	10,237	15,499	9,920
Comprehensive income (loss)	$ 11,193	$ (28,270)	$ 50,006	$ (28,402)