Segment Reporting Information - Operations and Assets (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2022 USD ($)	Jun. 25, 2021 USD ($)	Jul. 01, 2022 USD ($) segment	Jun. 25, 2021 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			3
Revenues	$ 548,547	$ 507,164	$ 1,042,832	$ 961,293
Operating Earnings	148,680	133,843	277,043	262,129
Total Assets	2,404,278		2,404,278		$ 2,443,198
Operating Segments | Industrial
Segment Reporting Information [Line Items]
Revenues	158,325	144,448	302,994	274,312
Operating Earnings	55,201	45,709	107,831	88,067
Total Assets	604,654		604,654		601,843
Operating Segments | Process
Segment Reporting Information [Line Items]
Revenues	124,483	97,232	239,507	188,605
Operating Earnings	31,057	21,676	58,545	43,409
Total Assets	517,098		517,098		436,203
Operating Segments | Contractor
Segment Reporting Information [Line Items]
Revenues	265,739	265,484	500,331	498,376
Operating Earnings	68,244	73,656	127,191	144,707
Total Assets	658,361		658,361		599,726
Unallocated corporate
Segment Reporting Information [Line Items]
Operating Earnings	(5,822)	$ (7,198)	(16,524)	$ (14,054)
Total Assets	$ 624,165		$ 624,165		$ 805,426