Revenue from Contracts with Customers - Summary of Disaggregated Revenue by Business Line (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 1,355,407	$ 1,075,107	$ 4,054,987	$ 2,975,980
Intermodal And Transportation Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenue	853,490	697,701	2,499,567	1,891,837
Truck brokerage [Member]
Disaggregation of Revenue [Line Items]
Revenue	250,030	153,270	811,496	420,523
Logistics [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 251,887	$ 224,136	$ 743,924	$ 663,620