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Segment Information (Operations and Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 25, 2020	Dec. 27, 2019
Segment Reporting Information
Net Sales	$ 1,987,608	$ 1,650,115	$ 1,646,045
Operating Earnings	531,323	391,718	424,456
Impairment of Long-Lived Assets to be Disposed of	0	(35,229)	0
Assets	2,443,198	1,988,128
Operating Segments | Industrial
Segment Reporting Information
Net Sales	840,256	677,680	747,396
Operating Earnings	296,542	226,575	247,216
Assets	713,657	632,165
Operating Segments | Process
Segment Reporting Information
Net Sales	397,626	326,105	344,930
Operating Earnings	91,037	64,498	76,367
Assets	436,198	404,370
Operating Segments | Contractor
Segment Reporting Information
Net Sales	749,726	646,330	553,719
Operating Earnings	169,518	164,549	128,282
Assets	487,916	438,067
Unallocated Corporate
Segment Reporting Information
Operating Earnings	(25,774)	(28,675)	$ (27,409)
Assets	$ 805,427	$ 513,526

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