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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Income Tax Disclosure [Abstract]

Components of Income from Continuing Operations Before Income Taxes

The following table presents the components of our income from continuing operations before income taxes (in thousands):

		2022				2021				2020
United States earnings		$	77,110			$	24,687			$	64,810
Foreign earnings			89,112				87,901				96,603
		$	166,222			$	112,588			$	161,413

Schedule of Income Tax Expense (Benefit) Attributable to Income from Continuing Operations

The income tax expense (benefit) attributable to income from continuing operations for the years ended December 31, 2022, December 31, 2021, and December 31, 2020 consists of the following (in thousands):

		2022				2021				2020
Current
Federal		$	21,323			$	653			$	15,663
State			9,946				6,830				9,024
Foreign			9,232				19,621				16,534
Total current income tax expense			40,501				27,104				41,221
Deferred
Federal			(2,902	)			1,624				(186	)
State			(623	)			(1,263	)			(1,785	)
Foreign			2,681				(3,829	)			3,242
Total deferred tax expense (benefit)			(844	)			(3,468	)			1,271
Total income tax expense		$	39,657			$	23,636			$	42,492

Computation of Income Tax Expense (Benefit)

Income tax expense (benefit) was different from the amount computed by applying the United States federal statutory rate to pre-tax income from continuing operations as a result of the following (in thousands):

		2022								2021								2020
Income before income tax expense		$	166,222							$	112,588							$	161,413
Tax at federal statutory tax rate			34,907				21.0	%			23,644				21.0	%			33,897				21.0	%
State taxes, net of federal tax benefit			7,530				4.5	%			4,192				3.7	%			4,838				3.0	%
Change in tax status			—				0.0	%			—				0.0	%			3,897				2.4	%
Change in valuation allowance			1,363				0.8	%			3,865				3.4	%			6,850				4.2	%
Change in uncertain tax positions			1,688				1.0	%			(80	)			-0.1	%			883				0.6	%
Foreign tax rate differential			(1,787	)			-1.1	%			(388	)			-0.3	%			(128	)			-0.1	%
Tax cost of foreign operations, net of credits			777				0.5	%			(5,151	)			-4.6	%			(47	)			0.0	%
Transaction costs			—				0.0	%			540				0.5	%			61				0.0	%
Noncontrolling interests			(6,279	)			-3.8	%			(5,225	)			-4.6	%			(4,280	)			-2.6	%
Federal business credits			(1,926	)			-1.2	%			(2,538	)			-2.2	%			(2,206	)			-1.4	%
Executive compensation			1,921				1.2	%			2,352				2.1	%			80				0.0	%
Other, net			1,463				0.9	%			2,425				2.1	%			(1,353	)			-0.9	%
Total income tax expense		$	39,657				23.9	%		$	23,636				21.0	%		$	42,492				26.3	%

Components of Deferred Tax Assets and Liabilities

The components of deferred tax assets and liabilities consists of the following at December 31, 2022 and December 31, 2021 (in thousands):

		2022				2021
Deferred tax assets
Project and non-project reserves		$	20,862			$	24,668
Employee compensation and benefits			55,103				60,397
Revenue and cost recognition			43,629				28,930
Insurance accruals			14,067				16,661
Net operating losses			8,928				11,589
Lease liabilities			44,285				54,926
Tax credit carryforwards			22,333				21,818
Other			3,847				3,323
Total deferred tax assets			213,054				222,312
Valuation allowance			(28,705	)			(27,348	)
Total deferred tax assets			184,349				194,964
Deferred tax liabilities
Intangible assets			(12,131	)			(16,542	)
Right-of-use assets			(40,111	)			(48,993	)
Other			(6,868	)			(6,436	)
Total deferred tax liabilities			(59,110	)			(71,971	)
Net deferred tax asset		$	125,239			$	122,993

Reconciliation of Beginning and Ending Balances of Unrecognized Tax Benefits

A reconciliation of the beginning and ending balances of unrecognized tax benefits is as follows (in thousands):

		2022				2021				2020
Beginning of year		$	21,181			$	16,395			$	15,526
Increases—current year tax positions			4,666				6,203				950
Increases—prior year tax positions			2,254				1,512				1,951
Decreases—prior year tax positions			(3,537	)			(2,929	)			(1,366	)
Settlements			(1,447	)			—				(666	)
Lapse of statute of limitations			(319	)			—				—
End of year		$	22,798			$	21,181			$	16,395

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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 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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