Segment Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2022 segment	Dec. 31, 2022	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments		2	2
Operating revenue
Total operating revenue	$ 2,161,170			$ 1,948,526	$ 1,742,101
Operating Income
Total Operating Income	(26,850)			18,429	43,551
Depreciation & Amortization
Total Depreciation & Amortization	82,289			81,976	102,827
Truckload Segment
Operating revenue
Total operating revenue	1,824,855			1,567,520	1,513,276
Operating Income
Total Operating Income	(42,011)			15,323	56,267
Depreciation & Amortization
Total Depreciation & Amortization	78,173			79,219	101,178
Brokerage Segment
Operating revenue
Total operating revenue	336,315			381,006	228,825
Operating Income
Total Operating Income	15,161			3,106	(12,716)
Depreciation & Amortization
Total Depreciation & Amortization	$ 4,116			$ 2,757	$ 1,649