XML 41 R37.htm IDEA: XBRL DOCUMENT v3.20.1
Accounting Policies - Summary of Components of Property and Equipment (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Property Plant And Equipment [Abstract]    
Land $ 239.9 $ 243.7
Structures 788.4 791.3
Revenue equipment 1,228.2 1,257.4
Technology equipment and software 291.7 259.7
Other 213.4 213.8
Total property and equipment, at cost $ 2,761.6 $ 2,765.9