Business Acquisitions (Narrative) (Details) - USD ($) $ in Thousands			9 Months Ended	12 Months Ended			13 Months Ended
	Dec. 11, 2017	Sep. 24, 2017	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired				$ 0	$ (3,727)	$ 488,517
Colfax, Inc. Fluid Handing Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business Combination, Consideration Transferred, Net Working Capital Adjustments	$ 18,121			11,821
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred, Net Working Capital							$ 6,300
Business Combination, Purchase Agreement, Consideration To Be Transferred		$ 542,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	388,000			385,000
Finite-lived Intangible Assets Acquired				3,000
Common Stock	143,767			139,984
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Accounts Receivable	77,970			75,842
Cash consideration							$ 2,600
Trade Names [Member] | Colfax, Inc. Fluid Handing Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	44,000			41,000
Finite-lived Intangible Assets Acquired				3,000
Technology-Based Intangible Assets [Member] | Colfax, Inc. Fluid Handing Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	107,000			113,000
Finite-lived Intangible Assets Acquired				6,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			20 years
Technology-Based Intangible Assets [Member] | Downstream [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					10 years
Customer Relationships [Member] | Colfax, Inc. Fluid Handing Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	215,000			215,000
Finite-lived Intangible Assets Acquired				0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			19 years
Backlog [Member] | Colfax, Inc. Fluid Handing Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 22,000			16,000
Finite-lived Intangible Assets Acquired				$ 6,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			4 years
Backlog [Member] | Downstream [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					2 years
Common Stock [Member] | Colfax, Inc. Fluid Handing Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business Combination, Purchase Agreement, Consideration To Be Transferred, Equity Interests Issuable		3,283,424