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Business Combinations - Acquisition of Hi-Rail (Details) - Hi-Rail - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jan. 14, 2022
Sep. 30, 2022
Sep. 30, 2022
Business Acquisition [Line Items]      
Percentage of voting rights acquired 100.00%    
Cash consideration paid to equity interest holders $ 51.0    
Revenues   $ 3.8 $ 11.7
Pretax income (loss)   $ 1.6 $ 2.3