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Acquisitions - Purchase Price Allocation (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 28, 2021
Dec. 16, 2021
Dec. 31, 2020
Dec. 31, 2019
Business Acquisition [Line Items]          
Goodwill $ 4,558,822     $ 4,072,542 $ 3,783,347
Intangible assets 439,479        
RegO          
Business Acquisition [Line Items]          
Accounts receivable   $ 34,252      
Inventories   77,954      
Other current assets   2,958      
Property, plant and equipment   52,053      
Goodwill   276,976      
Intangible assets   234,000      
Other assets and deferred charges   884      
Current liabilities   (19,480)      
Non-current liabilities   (34,904)      
Net assets acquired   $ 624,693      
Acme Cryogenics          
Business Acquisition [Line Items]          
Accounts receivable     $ 15,130    
Current assets, net of cash acquired     29,345    
Property, plant and equipment     8,750    
Intangible assets     127,300    
Other assets and deferred charges     5,057    
Current liabilities     (9,072)    
Non-current liabilities     (37,067)    
Net assets acquired     $ 293,522    
Series of individually immaterial acquistions          
Business Acquisition [Line Items]          
Current assets, net of cash acquired 12,751     44,159 14,018
Property, plant and equipment 8,272     8,424 1,030
Goodwill 135,932     205,805 119,512
Intangible assets 78,179     134,049 91,980
Other assets and deferred charges 4,485     12,986 20
Current liabilities (15,368)     (34,803) (10,162)
Non-current liabilities (17,389)     (34,834)  
Net assets acquired $ 206,862     $ 335,786 $ 216,398