Revenue Recognition (Notes)	12 Months Ended
	Dec. 31, 2023
Revenue Recognition and Deferred Revenue [Abstract]
Revenue from Contract with Customer [Text Block]	Revenue RecognitionTotal revenues recorded were $1,207.5 million, $968.0 million, and $607.3 million for the twelve months ended December 31, 2023, 2022, and 2021, respectively. Fuel surcharge revenues were $173.8 million, $169.2 million, and $76.1 million for the twelve months ended December 31, 2023, 2022, and 2021, respectively. As a result of the CFI acquisition we now outsourced certain loads to third-party carriers in the U.S. and Mexico. As of December 31, 2023 the Company is only outsourcing certain loads to third-party carriers in Mexico. The Company is a principal in these arrangements resulting in revenue associated with these contracts being recorded on a gross basis. The primary responsibility to meet the customer's requirements is maintained by the Company as the party performing billing, collection and pricing negotiations with the customer. The Company is also responsible for selecting third-party transportation providers that satisfy our premium customer service requirements. Accessorial, brokerage and other revenues recorded in the consolidated statements of comprehensive income collectively represented $94.8 million, $50.7 million, and $11.4 million for the twelve months ended December 31, 2023, 2022, and 2021, respectively