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Acquisitions - Consideration Paid (Details) - USD ($)
$ in Millions
Dec. 10, 2021
Jun. 15, 2020
Feb. 27, 2019
Business Acquisition [Line Items]      
Cash paid $ 6.3    
FTT Inc      
Business Acquisition [Line Items]      
Cash paid     $ 20.7
Deferred purchase consideration     15.3
Common stock issued     27.0
Consideration transferred, gross     63.0
Less: Cash acquired     (3.0)
Total consideration     $ 60.0
CPI ASC Signal Division, Inc.      
Business Acquisition [Line Items]      
Cash paid   $ 34.9  
Less: Cash acquired   (2.0)  
Total consideration   $ 32.9