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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of income before income taxes by geographical area

Income before income taxes by geographic area was, for the years ended December 31:

(in thousands)						2021						2020						2019
Federal						$	106,956					$	77,195					$	46,445
Foreign						9,350						4,190						3,997
						$	116,306					$	81,385					$	50,442

Schedule of income tax expense

Income tax expense consisted of the following for the years ended December 31:

(in thousands)						2021						2020						2019
Current
Federal						$	16,512					$	19,014					$	6,976
Foreign						1,947						—						—
State						6,560						6,363						3,562
						25,019						25,377						10,538
Deferred
Federal						5,061						(2,519)						3,010
Foreign						287						963						874
State						933						(1,195)						(194)
						6,281						(2,751)						3,690
Income tax expense						$	31,300					$	22,626					$	14,228

Schedule of effective tax rate reconciliation

The differences between the U.S. federal statutory tax rate and the Company’s effective tax rate for operations were as follows for the years ended December 31:

						2021						2020						2019
U.S federal statutory rate						21.0		%				21.0		%				21.0		%
State income taxes, net of U.S. federal income tax expense						4.7						5.0						4.7
Change in valuation allowance						—						0.1						(0.3)
Tax differential on foreign earnings						0.5						0.3						0.4
Non-deductible meals and entertainment						0.1						0.4						0.8
Stock compensation excess tax benefits						(0.8)						(0.6)						0.1
Uncertain tax positions						—						0.3						(0.4)
Provision to return adjustments, net						0.4						0.4						0.2
Global intangible low tax income						—						0.9						0.3
Section 162(m) limitation						1.1						0.5						0.3
Non-controlling interest						—						—						0.9
Other income, net						(0.1)						(0.5)						0.2
Effective rate						26.9		%				27.8		%				28.2		%

Schedule of net deferred tax assets and (liabilities)

The net deferred tax assets and (liabilities) arising from temporary differences was as follows at December 31:

(in thousands)						2021						2020
Deferred income tax assets:
Self insurance reserves						$	2,138					$	4,091
Contract loss reserves						541						703
Stock-based awards						1,633						1,300
Bonus						8,373						6,173
Accrued vacation						1,977						1,741
Accrued profit sharing						2,665						2,476
Operating lease liabilities						5,404						5,715
Non-U.S. operating loss						2,520						3,601
Other						2,628						4,661
Total deferred income tax assets before valuation allowances						27,879						30,461
Less: valuation allowances						(2,593)						(2,566)
Total deferred income tax assets						25,286						27,895
Deferred income tax liabilities:
Property and equipment — tax over book depreciation						(36,856)						(34,439)
Intangible assets — tax over book amortization						(2,913)						(2,207)
Right-of-use operating lease assets						(5,398)						(5,702)
Non-U.S. deferred income tax liabilities						—						(1,322)
Contract revenue adjustment						(4,526)						(2,128)
Other						(213)						(436)
Total deferred income tax liabilities						(49,906)						(46,234)
Net deferred income taxes						$	(24,620)					$	(18,339)

Schedule of liability for unrecognized tax benefits reconciliation

The following is a reconciliation of the beginning and ending liability for unrecognized tax benefits at December 31:

(in thousands)						2021						2020
Balance at beginning of period						$	353					$	152
Gross increases in current period tax positions						45						217
Reductions in tax positions due to lapse of statutory limitations						(70)						(16)
Balance at end of period						328						353
Accrued interest and penalties at end of period						72						69
Total liability for unrecognized tax benefits						$	400					$	422

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure of the change in unrecognized tax benefits.

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