Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Summary of Provision for Income Taxes

The provision for income taxes is as follows (in thousands):

	Year Ended December 31,
	2022			2021			2020
Current:
Federal	$	14,683		$	9,527		$	2,943
State		5,529			3,408			396
		20,212			12,935			3,339
Deferred:
Federal		(1,096	)		143			4,156
State		(1,081	)		(496	)		1,336
		(2,177	)		(353	)		5,492
Total provision	$	18,035		$	12,582		$	8,831

Summary of Deferred Income Tax Assets and Liabilities

Deferred income tax assets and liabilities consist of the following components (in thousands):

	December 31,
	2022			2021
Deferred income tax assets:
Tax effect of unrealized losses (gains), net	$	10,565		$	(393	)
Workers' compensation claims liabilities		7,459			7,870
Deferred compensation		7,347			6,109
Operating lease liability		5,813			5,870
MCC accrual		2,173			167
Other		1,254			1,388
Equity based compensation		743			678
State credit carryforward		54			329
Customer incentives		6			12
Payroll tax deferral		—			749
		35,414			22,779
Less: valuation allowance		—			163
		35,414			22,616
Deferred income tax liabilities:
Tax amortization of goodwill		(9,377	)		(10,120	)
Tax depreciation in excess of book depreciation		(8,914	)		(7,433	)
Operating lease right-of-use		(5,316	)		(5,527	)
Other		(367	)		(1,223	)
		(23,974	)		(24,303	)
Net deferred income taxes	$	11,440		$	(1,687	)

Summary of Effective Tax Rate Differed from U.S. Statutory Federal Tax Rate

The effective tax rate differed from the U.S. statutory federal tax rate due to the following:

	Year Ended December 31,
	2022				2021				2020
Statutory federal tax rate		21.0		%		21.0		%		21.0		%
State taxes, net of federal benefit		5.4				4.5				3.2
Nondeductible expenses and other, net		1.5				0.5				0.7
Adjustment for final positions on filed returns		0.2				0.9				0.6
Federal and state tax credits		(0.5	)			(2.1	)			(4.9	)
Other, net		—				—				0.1
Effective tax rate		27.6		%		24.8		%		20.7		%