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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Components of Provision (Benefit) for Income Taxes

The following table summarizes the income tax expense from continuing operations:

(in millions)			2020						2019						2018
Current tax expense (benefit):
Federal			$	16.4					$	20.7					$	17.8
Foreign			1.4						0.4						(0.1)
State and local			5.1						6.0						5.7
Total current tax expense			22.9						27.1						23.4
Deferred tax expense (benefit):
Federal			2.7						2.8						0.6
Foreign			3.1						2.2						(6.5)
State and local			(0.2)						(1.9)						0.4
Total deferred tax expense (benefit)			5.6						3.1						(5.5)
Total income tax expense			$	28.5					$	30.2					$	17.9

Differences between Statutory Federal Income Tax Rate and Effective Income Tax Rate

The following table summarizes the differences between the statutory federal income tax rate and the effective income tax rate from continuing operations:

			2020						2019						2018
Statutory federal income tax rate			21.0		%				21.0		%				21.0		%
State income taxes, net of federal tax benefit			3.5						3.2						4.5
Valuation allowance			0.1						(0.6)						—
Tax planning benefits, excluding valuation allowance effects			—						—						(8.1)
Tax reserves			(0.1)						(0.4)						(0.3)
Tax credits			(0.3)						(0.4)						(0.3)
Foreign tax rate effects			0.8						0.4						0.3
Excess tax benefits from stock compensation activity			(2.9)						(1.2)						(0.8)
Other, net			0.8						(0.2)						(0.3)
Effective income tax rate			22.9		%				21.8		%				16.0		%

Schedule of Income before Income Tax

The following table summarizes income before income taxes from continuing operations:

(in millions)			2020						2019						2018
U.S.			$	107.4					$	126.0					$	100.6
Non-U.S.			17.2						12.6						11.0
Income before income taxes			$	124.6					$	138.6					$	111.6

Deferred Income Tax Assets and Liabilities

The following table summarizes deferred income tax assets and liabilities of the Company’s continuing operations:

(in millions)			2020						2019
Deferred tax assets:
Properties and equipment			$	2.6					$	0.7
Accrued expenses			27.5						28.6
Stock-based compensation			3.7						3.9
Net operating loss and tax credit carryforwards			21.0						21.6
Goodwill and intangibles			1.7						1.5
Pension benefits			21.8						18.5
Gross deferred tax assets			78.3						74.8
Valuation allowance			(8.8)						(8.2)
Total deferred tax assets			69.5						66.6
Deferred tax liabilities:
Properties and equipment			(32.5)						(24.4)
Pension benefits			(12.1)						(11.3)
Goodwill and intangibles			(67.8)						(72.4)
Other			(1.2)						(1.1)
Gross deferred tax liabilities			(113.6)						(109.2)
Net deferred tax liabilities			$	(44.1)					$	(42.6)

Summary of Activities Related to Unrecognized Tax Benefits

The following table summarizes the activity related to the Company’s unrecognized tax benefits:

(in millions)			2020						2019						2018
Balance at January 1			$	1.3					$	1.6					$	1.9
Increases related to current year tax			—						—						0.2
Increases from prior period positions			—						0.2						—
Decreases from settlements with tax authorities			—						(0.2)						—
Decreases due to lapse of statute of limitations			(0.1)						(0.3)						(0.5)
Balance at December 31			$	1.2					$	1.3					$	1.6

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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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