Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

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,
	2020		2019		2018
Domestic	$	435.9	$	452.2	$	341.1
Foreign	(10.7)		58.7		24.2
Total	$	425.2	$	510.9	$	365.3

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,
	2020		2019		2018
Current:
Federal	$	70.6	$	77.4	$	26.7
Foreign	2.1		6.2		9.4
State and local	22.6		15.6		10.5
	$	95.3	$	99.2	$	46.6
Deferred:
Federal	$	14.8	$	22.4	$	43.9
Foreign	(9.8)		(2.8)		3.3
State and local	2.2		(2.0)		12.3
	$	7.2	$	17.6	$	59.5
Provision for income taxes	$	102.5	$	116.8	$	106.1

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,
	2020		2019
Deferred tax assets:
Accrued insurance	$	31.1	$	28.6
Operating loss carryforwards and tax credits	82.1		70.5
Compensation and benefits	32.8		16.8
Bad debt	3.7		0.9
Other	12.3		11.5
Valuation allowance	(45.8)		(48.8)
Total deferred tax assets	$	116.2	$	79.5
Deferred tax liabilities:
Property and equipment	$	205.0	$	179.5
Goodwill	58.7		49.6
Other intangible assets	30.7		35.0
Gain on remeasurement of equity investee	7.0		7.0
Revenue recognition	22.4		20.6
Investments in unconsolidated entities	79.8		74.0
Other	15.5		10.1
Total deferred tax liabilities	$	419.1	$	375.8
Net deferred tax liabilities	$	(302.9)	$	(296.3)

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,
	2020		2019		2018
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		3.2		4.2
Foreign tax rate differential	(0.2)		0.2		1.5
Non-deductible expenses	1.5		1.7		1.7
Goodwill and intangible assets	(0.2)		(0.5)		3.6
Change in tax rate	0.6		(1.5)		(2.8)
Other	(0.6)		(1.0)		(2.4)
Tax credits	(1.2)		(0.6)		(0.4)
Stock basis adjustment	0.0		(1.8)		0.0
Valuation allowance for deferred tax assets	(1.1)		2.2		2.6
Effective income tax rate	24.1	%	22.9	%	29.0	%

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,
	2020		2019		2018
Beginning balance	$	13.5	$	9.4	$	8.1
Additions based on tax positions related to the current year	1.5		3.7		2.7
Additions for tax positions of prior years	3.4		0.7		—
Reductions for tax positions of prior years	—		(0.3)		(1.4)
Ending balance	$	18.4	$	13.5	$	9.4