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Significant Accounting Policies - Disaggregated Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue from operations	$ 5,814,810	$ 5,866,152	$ 6,260,077
LTL Service Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from operations	5,761,105	5,804,939	6,177,055
Other Service Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from operations	$ 53,705	$ 61,213	$ 83,022

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