Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)			1 Months Ended	3 Months Ended
	Mar. 01, 2022	Mar. 01, 2018	Aug. 31, 2019	Mar. 31, 2022
New Automobile Liability Insurance Policy [Member]
Summary of Significant Accounting Policies [Line Items]
New automobile liability insurance policy, effective date	Mar. 01, 2022	Mar. 01, 2018
New automobile liability insurance policy, term	3 years	3 years
Risk retention amount per occurrence under new policy		$ 2,000,000.0
Returnable premium for changes in claims	$ 1,400,000
Provisional extended term of policy		1 year
Maximum amount received return on premium availability	1,100,000		$ 5,200,000
Self insurance, per occurrence			$ 10,000,000
Reduction in insurance premium expenses				$ 300,000
Accrued additional premium				$ 0
New automobile liability insurance amount occurrence exceeds	10,000,000
New automobile liability insurance policy losses	1,400,000
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Percentage of revenue derived from transporting				97.00%
Average transit time				1 day
Minimum [Member] | New Automobile Liability Insurance Policy [Member]
Summary of Significant Accounting Policies [Line Items]
Self insurance, per occurrence	10,000,000
Minimum [Member] | Entire 36 Months [Member] | New Automobile Liability Insurance Policy [Member]
Summary of Significant Accounting Policies [Line Items]
Returnable premium for changes in claims		$ 17,500,000
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Average transit time				5 days
Maximum [Member] | New Automobile Liability Insurance Policy [Member]
Summary of Significant Accounting Policies [Line Items]
Single loss limit	5,000,000.0	8,000,000.0
Aggregate loss limit for each policy year	10,000,000.0	24,000,000.0
Aggregate loss limit during policy period	$ 20,000,000.0	48,000,000.0
Provisional extended term of policy	3 years
Self insurance, per occurrence	$ 15,000,000
Paid losses specified limit to pay additional premium		17,500,000
Additional premium to be paid, if losses are paid by insurer are greater than limit specified	$ 7,500,000	11,000,000.0
Maximum [Member] | First 12 months [Member] | New Automobile Liability Insurance Policy [Member]
Summary of Significant Accounting Policies [Line Items]
Returnable premium for changes in claims		$ 5,200,000