Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The significant components of the Provision for income tax expense related to continuing operations are as follows (in millions):

	For the Year Ended December 31,
	2021		2020		2019
Current:
Federal	$	86.8	$	37.7	$	58.1
State and other	25.0		13.7		17.8
Total current expense	111.8		51.4		75.9
Deferred:
Federal	23.6		39.5		32.0
State and other	4.2		12.9		8.0
Total deferred expense	27.8		52.4		40.0
Total income tax expense related to continuing operations	$	139.6	$	103.8	$	115.9

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of differences between the federal income tax at statutory rates and our actual income tax expense on our income from continuing operations, which include federal, state, and other income taxes, is presented below:

	For the Year Ended December 31,
	2021		2020		2019
Tax expense at statutory rate	21.0	%	21.0	%	21.0	%
Increase (decrease) in tax rate resulting from:
State and other income taxes, net of federal tax benefit	3.8	%	4.2	%	4.3	%
(Decrease) increase in valuation allowance	(0.5)	%	1.7	%	0.8	%
Government, class action, and related settlements	—	%	—	%	(1.2)	%
Noncontrolling interests	(3.3)	%	(3.7)	%	(3.0)	%
Share-based windfall tax benefits	(0.5)	%	(1.0)	%	(1.0)	%
Other, net	0.7	%	(0.2)	%	(0.3)	%
Income tax expense	21.2	%	22.0	%	20.6	%

Schedule of Components of Deferred Tax Assets and Liabilities

The significant components of our deferred tax assets and liabilities are presented in the following table (in millions):

	As of December 31,
	2021		2020
Deferred income tax assets:
Net operating loss	$	50.4	$	57.6
Property, net	—		6.6
Insurance reserve	18.7		17.8
Stock-based compensation	15.2		15.2
Operating lease liabilities	18.2		22.1
Other accruals	35.1		43.4
Tax credits	10.9		10.5
Other	—		0.1
Total deferred income tax assets	148.5		173.3
Less: Valuation allowance	(43.1)		(46.2)
Net deferred income tax assets	105.4		127.1
Deferred income tax liabilities:
Revenue reserves	(0.7)		(5.7)
Intangibles	(102.9)		(99.7)
Operating lease right-of-use assets	(17.7)		(21.7)
Property, net	(3.4)		—
Carrying value of partnerships	(67.0)		(51.4)
Other	(0.4)		(0.4)
Total deferred income tax liabilities	(192.1)		(178.9)
Net deferred income tax liabilities	$	(86.7)	$	(51.8)