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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

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):

		2017				2018				2019
United States earnings		$	85,913			$	205,418			$	6,762
Foreign earnings			47,088				54,385				60,480
		$	133,001			$	259,803			$	67,242

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 29, 2017, December 31, 2018 and December 31, 2019 consists of the following (in thousands):

		2017				2018				2019
Current
Federal		$	-			$	-			$	22,865
State			1,579				1,536			$	10,428
Foreign			14,482				20,253				20,159
Total current income tax expense			16,061				21,789				53,452
Deferred
Federal			—				—				(97,299	)
State			(569	)			2,329				(27,432	)
Foreign			5,972				(3,751	)			1,393
Total deferred tax expense (benefit)			5,403				(1,422	)			(123,338	)
Total income tax expense (benefit)		$	21,464			$	20,367			$	(69,886	)

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):

		2017								2018								2019
Income before income tax expense (benefit)		$	133,001							$	259,803							$	67,242
Tax at federal statutory tax rate			46,550				35	%			54,559				21	%			14,121				21	%
S- corporation exclusion			(25,109	)			(19	)%			(39,539	)			(15	)%			(4,875	)			(7	)%
State taxes, net of federal tax benefit			1,010				1	%			3,865				1	%			3,223				5	%
Change in tax status			—				—				—				—				(93,878	)			(140	)%
Change in valuation allowance			1,438				1	%			(2,215	)			(1	)%			4,502				7	%
Change in uncertain tax positions			(34	)			0	%			629				0	%			4,118				6	%
Foreign tax rate differential			(907	)			(1	)%			4,168				2	%			4,886				7	%
Foreign tax credits			—				—				—				—				(1,313	)			(2	)%
Transaction costs			—				—				—				—				1,052				1	%
Other permanent items, net			—				—				—				—				1,182				2	%
Noncontrolling interests			(4,960	)			(4	)%			(3,599	)			(1	)%			(2,282	)			(3	)%
Other, net			3,476				3	%			2,499				1	%			(622	)			(1	)%
Total income tax expense (benefit)		$	21,464				16	%		$	20,367				8	%		$	(69,886	)			(104	)%

Components of Deferred Tax Assets and Liabilities

The components of deferred tax assets and liabilities consists of the following at December 31, 2018 and December 31, 2019 (in thousands):

		2018				2019
Deferred tax assets
Project and non-project reserves		$	2,326			$	34,225
Employee compensation and benefits			1,609				59,624
Revenue and cost recognition			—				33,588
Insurance accruals			962				19,204
Net operating losses			14,855				16,400
Lease liabilities			205				68,447
Tax credit carryforwards			377				8,969
Other			2,240				3,318
Valuation allowance			(6,668	)			(17,358	)
Total deferred tax assets			15,906				226,417
Deferred tax liabilities
Intangible assets			(2,529	)			(29,543	)
Right of use assets			—				(63,032	)
Revenue and cost recognition			(10,570	)			—
Other			(3,367	)			(13,063	)
Total deferred tax liabilities			(16,466	)			(105,638	)
Net deferred tax (liability) asset		$	(560	)		$	120,779

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):

		2017				2018				2019
Beginning of year		$	7,827			$	7,137			$	7,845
Increases—current year tax positions			1,134				1,094				7,531
Increases—prior year tax positions			319				1,301				1,379
Decreases—prior year tax positions			(1,629	)			(1,656	)			(991	)
Settlements			(361	)			—				(124	)
Lapse of statute of limitations			(153	)			(31	)			(114	)
End of year		$	7,137			$	7,845			$	15,526

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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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