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Acquisitions - Narrative (Details)										9 Months Ended
	Jul. 01, 2022 USD ($)	May 02, 2022 USD ($)	Dec. 28, 2021 USD ($)	Dec. 16, 2021 USD ($)	Sep. 15, 2021 USD ($)	Jul. 23, 2021 USD ($)	Jun. 24, 2021 USD ($)	Jun. 23, 2021 USD ($)	Apr. 19, 2021 USD ($)	Sep. 30, 2022 USD ($) acquisition	Sep. 30, 2021 USD ($) acquisition	Oct. 20, 2022
Business Acquisition [Line Items]
Goodwill acquired										$ 154,016,000
Goodwill increase (decrease)										(1,786,000)
Pumps & Process Solutions
Business Acquisition [Line Items]
Number of business acquisitions | acquisition											1
Goodwill acquired										154,016,000
Goodwill increase (decrease)										$ 0
Series of individually immaterial acquistions
Business Acquisition [Line Items]
Number of business acquisitions | acquisition										2	6
Total consideration, net of cash acquired										$ 229,296,000	$ 179,161,000
Number of business acquisitions with contingent consideration | acquisition										1
Goodwill - tax deductible											29,317,000
Goodwill - non-deductible											$ 83,142,000
Malema Engineering Corporation
Business Acquisition [Line Items]
Total consideration, net of cash acquired	$ 220,843,000
Percentage acquired (in percent)	99.70%
Contingent consideration, earnout financial performance target, each period	12 months
Contingent consideration, earnout financial performance target, maturity period	2 years
Contingent consideration payout minimum	$ 0
Contingent consideration payout maximum	50,000,000
Fair value of contingent liability	0
Goodwill acquired	151,701,000
Intangible assets	84,000,000
Accounts receivable	2,928,000
Goodwill - non-deductible	151,701,000
Malema Engineering Corporation | Subsequent Event
Business Acquisition [Line Items]
Percentage acquired (in percent)												0.30%
Malema Engineering Corporation | Customer intangibles
Business Acquisition [Line Items]
Intangible assets	64,000,000
Malema Engineering Corporation | Patents
Business Acquisition [Line Items]
Intangible assets	16,000,000
Malema Engineering Corporation | Trademarks
Business Acquisition [Line Items]
Intangible assets	$ 4,000,000
AMN DPI
Business Acquisition [Line Items]
Total consideration, net of cash acquired		$ 8,453,000
Percentage acquired (in percent)		100.00%
Goodwill acquired		$ 2,315,000
Intangible assets		$ 5,349,000
Espy Corporation
Business Acquisition [Line Items]
Total consideration, net of cash acquired					$ 60,457,000
Percentage acquired (in percent)					100.00%
Goodwill acquired					$ 29,317,000
Intangible assets					$ 21,100,000
CDS Visual, Inc.
Business Acquisition [Line Items]
Total consideration, net of cash acquired						$ 29,147,000
Percentage acquired (in percent)						100.00%
Goodwill acquired						$ 20,863,000
Intangible assets						$ 9,930,000
Blue Bite
Business Acquisition [Line Items]
Total consideration, net of cash acquired							$ 30,143,000
Percentage acquired (in percent)							100.00%
Goodwill acquired							$ 20,458,000
Intangible assets							$ 13,250,000
Quantex
Business Acquisition [Line Items]
Total consideration, net of cash acquired								$ 23,747,000
Percentage acquired (in percent)								100.00%
Goodwill acquired								$ 14,327,000
Intangible assets								$ 11,034,000
AvaLAN
Business Acquisition [Line Items]
Total consideration, net of cash acquired									$ 34,144,000
Percentage acquired (in percent)									100.00%
Goodwill acquired									$ 26,803,000
Intangible assets									$ 14,630,000
RegO
Business Acquisition [Line Items]
Total consideration, net of cash acquired			$ 626,620,000
Percentage acquired (in percent)			100.00%
Intangible assets			$ 234,000,000
Accounts receivable			33,900,000
Goodwill - tax deductible			158,894,000
Goodwill - non-deductible			122,301,000
Fair value of trade receivables acquired			34,606,000
Allowance for uncollectable accounts			706,000
Goodwill increase (decrease)										$ 4,219,000
Cash acquired			10,382,000
RegO | Customer intangibles
Business Acquisition [Line Items]
Intangible assets			173,000,000
RegO | Patents
Business Acquisition [Line Items]
Intangible assets			40,000,000
RegO | Trademarks
Business Acquisition [Line Items]
Intangible assets			$ 21,000,000
Acme Cryogenics
Business Acquisition [Line Items]
Total consideration, net of cash acquired				$ 292,285,000
Percentage acquired (in percent)				100.00%
Intangible assets				$ 127,300,000
Goodwill - non-deductible				164,870,000
Allowance for uncollectable accounts				344,000
Goodwill increase (decrease)										$ (4,339,000)
Gross trade receivables acquired				14,912,000
Acme Cryogenics | Other Current Assets
Business Acquisition [Line Items]
Accounts receivable				14,568,000
Acme Cryogenics | Customer intangibles
Business Acquisition [Line Items]
Intangible assets				99,000,000
Acme Cryogenics | Trademarks
Business Acquisition [Line Items]
Intangible assets				$ 6,500,000

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