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Acquisitions (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Business Acquisition [Line Items]      
Goodwill $ 57.1 $ 37.1 $ 30.1
Series of Individually Immaterial Business Acquisitions [Member]      
Business Acquisition [Line Items]      
Business Combination, Consideration Transferred 88.7    
Goodwill 20.0    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill $ 32.1    
Shingle & Gibb Automation, LLC [Member]      
Business Acquisition [Line Items]      
Business Combination, Consideration Transferred   27.6  
Goodwill   7.4  
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill   $ 18.1