Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Components of Income Tax Expense (Benefit)

Components of income tax expense/(benefit) are as follows (amounts in thousands):

	Year Ended December 31,
	2019			2018			2017
Current
Federal	$	225,663		$	195,862		$	352,433
Foreign		9,284			13,699			10,625
State		40,152			37,555			37,421
		275,099			247,116			400,479
Deferred
Federal		(27,073	)		(6,216	)		(36,998	)
Foreign		1,874			(666	)		24
State		(11,106	)		(3,592	)		192
		(36,305	)		(10,474	)		(36,782	)
Total	$	238,794		$	236,642		$	363,697

Reconciliation Between Federal Statutory Rate and Effective Tax Rate

A reconciliation between the federal statutory rate and the effective tax rate is as follows:

	Year Ended December 31,
	2019			2018			2017
Federal statutory rate		21.0	%		21.0	%		35.0	%
State taxes, net of federal income tax benefit		2.2	%		2.6	%		2.2	%
Tax effects of foreign operations		-0.3	%		-0.5	%		-1.2	%
Tax benefit from settlement of employee equity awards		-1.0	%		-0.1	%		-1.9	%
Enactment of the TCJA-17		0.0	%		-0.6	%		-1.7	%
Other items		0.8	%		0.9	%		0.2	%
Impact of income attributable to noncontrolling interests		-0.3	%		-0.4	%		-0.6	%
Effective tax rate		22.4	%		22.9	%		32.0	%

Components of Deferred Taxes

The components of deferred taxes are as follows (amounts in thousands):

		Year Ended December 31,
		2019							2018
		Assets				Liabilities			Assets				Liabilities
Self-insurance reserves	$		69,217		$			$		68,402		$
Compensation accruals			70,680							74,124
Doubtful accounts and other reserves			77,665							27,184
Other currently non-deductible accrued liabilities			36,500							35,253
Depreciable and amortizable assets							275,901							257,896
Operating lease liabilities			76,164
Right of use assets-operating leases							76,164
State and foreign net operating loss carryforwards and other state and foreign deferred tax assets			87,662							86,315
Net pension liabilities – OCI only			2,427							4,475
Other combined items – OCI only							0							929
Other liabilities							1,855							2,045
	$		420,315		$		353,920	$		295,753		$		260,870
Valuation Allowance			(75,277	)			0			(79,264	)			0
Total deferred income taxes	$		345,038		$		353,920	$		216,489		$		260,870

Reconciliation of Unrecognized Tax Benefits

The tabular reconciliation of unrecognized tax benefits for the years ended December 31, 2019, 2018 and 2017 is as follows (amounts in thousands):

	As of  December 31,
	2019			2018			2017
Balance at January 1,	$	1,553		$	1,096		$	1,259
Additions based on tax positions related to the current year		500			500			500
Additions for tax positions of prior years		113			62			47
Reductions for tax positions of prior years		0			0			0
Settlements		(2	)		(105	)		(710	)
Balance at December 31,	$	2,164		$	1,553		$	1,096