Acquisitions and Divestitures - Allocation of Acquisition Costs to Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2021	Mar. 10, 2021	Dec. 31, 2020	Feb. 28, 2020
Business Acquisition [Line Items]
Goodwill		$ 1,928,665		$ 1,895,574
ABEL
Business Acquisition [Line Items]
Current assets, net of cash acquired			$ 18,500
Property, plant and equipment			4,034
Goodwill			58,980
Intangible assets			46,000
Other noncurrent assets			98
Total assets acquired			127,612
Current liabilities			(6,707)
Deferred income taxes			(14,597)
Other noncurrent liabilities			(72)
Net assets acquired			$ 106,236
Flow MD
Business Acquisition [Line Items]
Current assets, net of cash acquired					$ 32,858
Property, plant and equipment					4,166
Goodwill					60,026
Intangible assets					53,000
Other noncurrent assets					1,344
Total assets acquired					151,394
Current liabilities					(32,291)
Deferred income taxes					2,459
Other noncurrent liabilities					(329)
Net assets acquired					$ 121,233
Adjustment to purchase price	$ 400