Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Components of Income before Income Taxes

The components of income before income taxes for the periods indicated were as follows (in millions):

	For the Years Ended December 31,
	2021		2020		2019
Domestic	$	414.1	$	435.9	$	452.2
Foreign	16.0		(10.7)		58.7
Total	$	430.1	$	425.2	$	510.9

Schedule of Provision for Income Taxes

The provision for income taxes for the periods indicated were as follows (in millions):

	For the Years Ended December 31,
	2021		2020		2019
Current:
Federal	$	36.9	$	70.6	$	77.4
Foreign	1.5		2.1		6.2
State and local	9.0		22.6		15.6
	$	47.4	$	95.3	$	99.2
Deferred:
Federal	$	37.0	$	14.8	$	22.4
Foreign	(0.1)		(9.8)		(2.8)
State and local	15.0		2.2		(2.0)
	$	51.9	$	7.2	$	17.6
Provision for income taxes	$	99.3	$	102.5	$	116.8

Schedule of Deferred Tax Assets and Liabilities

The tax effects of significant items comprising the Company’s net deferred tax liability as of the dates indicated were as follows (in millions):

	December 31,
	2021		2020
Deferred tax assets:
Accrued insurance	$	42.2	$	31.1
Operating loss carryforwards and tax credits	80.7		82.1
Compensation and benefits	36.1		32.8
Bad debt	1.6		3.7
Other	15.4		12.3
Valuation allowance	(54.2)		(45.8)
Total deferred tax assets	$	121.8	$	116.2
Deferred tax liabilities:
Property and equipment	$	310.1	$	205.0
Goodwill	77.9		58.7
Other intangible assets	58.7		30.7
Gain on remeasurement of equity investee	7.2		7.0
Revenue recognition	1.6		22.4
Investments in unconsolidated entities	99.7		79.8
Other	17.0		15.5
Total deferred tax liabilities	$	572.2	$	419.1
Net deferred tax liabilities	$	(450.4)	$	(302.9)

Schedule of Effective Tax Rate Reconciliation

A reconciliation of the U.S. statutory federal income tax rate related to pretax income to the effective tax rate for the periods indicated is as follows:

	For the Years Ended December 31,
	2021		2020		2019
U.S. statutory federal rate applied to pretax income	21.0	%	21.0	%	21.0	%
State and local income taxes, net of federal benefit	4.3		4.3		3.2
Foreign tax rate differential	0.1		(0.2)		0.2
Non-deductible expenses	0.3		1.5		1.7
Goodwill and intangible assets	0.4		(0.2)		(0.5)
Change in tax rate	1.6		0.6		(1.5)
Other	0.8		(0.6)		(1.0)
Tax credits	(4.8)		(1.2)		(0.6)
Stock basis adjustment	(0.9)		0.0		(1.8)
Valuation allowance for deferred tax assets	0.3		(1.1)		2.2
Effective income tax rate	23.1	%	24.1	%	22.9	%

Rollforward of Uncertain Tax Positions

A reconciliation of the beginning and ending amount of uncertain tax positions including interest and penalties is as follows (in millions):

	For the Years Ended December 31,
	2021		2020		2019
Beginning balance	$	18.4	$	13.5	$	9.4
Additions based on tax positions related to the current year	4.4		1.5		3.7
Additions for tax positions of prior years	6.8		3.4		0.7
Reductions for tax positions of prior years	—		—		(0.3)
Settlements	(5.1)		—		—
Lapse of statute of limitations	(0.8)		—		—
Ending balance	$	23.7	$	18.4	$	13.5