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Segment Information (Details 2) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Geographic Information      
Operating revenues $ 460.1 $ 429.9  
Long-lived assets 1,760.8   $ 1,770.9
U.S.      
Geographic Information      
Operating revenues 270.3 $ 272.1  
Long-lived assets $ 993.8   1,006.1
Foreign      
Geographic Information      
Percent of foreign revenue from Canada 53.00% 54.00%  
Operating revenues $ 189.8 $ 157.8  
Long-lived assets $ 767.0   $ 764.8