Acquisition - Summarizes the Total Purchase Price Allocated to Net Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands			9 Months Ended
	Aug. 22, 2022	Oct. 19, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Business Acquisition [Line Items]
Goodwill			$ 628,093		$ 576,913
Lease liability - operating leases			79,758		34,916
Cash paid, net			102,661	$ 90
Choptank Transport LLC [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		$ 5,596
Accounts receivable trade		70,989
Prepaid expenses and other current assets		419
Property and equipment		169
Right of use assets - operating leases		922
Other intangibles		60,500
Goodwill		54,980	$ 628,093		$ 576,913
Total assets acquired		193,575
Accounts payable trade		60,970
Accrued payroll		3,458
Accrued other		359
Lease liability - operating leases short-term		309
Lease liability - operating leases		613
Total liabilities assumed		65,709
Total consideration		127,866
Cash paid, net		$ 122,270
TAGG Logistics Acquisition [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	$ 839
Accounts receivable trade	24,841
Prepaid expenses and other current assets	1,685
Property and equipment	6,893
Right of use assets - operating leases	56,689
Other intangibles	27,300
Goodwill	50,754
Other assets	1,705
Total assets acquired	170,706
Accounts payable trade	9,193
Accrued payroll	2,536
Accrued other	758
Lease liability - operating leases short-term	14,465
Lease liability - operating leases	40,254
Total liabilities assumed	67,206
Total consideration	103,500
Cash paid, net	$ 102,661