Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Allocated Share-based Compensation Costs

Following are certain amounts recognized in the consolidated statements of operations for share-based compensation arrangements for the years ended December 31, 2021, 2020, and 2019. We did not capitalize any share-based compensation costs during these periods.

	Year Ended
	December 31,		December 31,		December 31,
(In millions)	2021		2020		2019
Share-based compensation included in cost of revenue	$	2.5	$	2.7	$	2.2
Share-based compensation included in selling, general and    administrative expenses		7.6		6.2		3.4
Share-based compensation included in restructuring and related    charges		—		0.8		—
Share-based compensation included in continuing operations	$	10.1	$	9.7	$	5.6
Share-based compensation included in discontinued operations		—		4.4		13.2
Total share-based compensation	$	10.1	$	14.1	$	18.8
Total income tax benefit recognized in continuing operations		2.6		2.5		1.4

Summary of Weighted Average Grant-date Fair Values of Options and Weighted Average Assumptions Used to Develop Fair Value Estimates

The following table sets forth the weighted average grant-date fair values of options and the weighted average assumptions we used to develop the fair value estimates for the years ended December 31, 2021 and 2020.  There were no stock options granted during fiscal 2019.

	Year Ended December 31, 2021			Year Ended December 31, 2020			Year Ended December 31, 2019
Weighted average grant-date fair value of options per share	$	13.31		$	8.20		$	—
Expected term (in years)		6.3			6.2			—
Assumptions:
Expected volatility		63.1	%		63.2	%		—
Expected dividends		—			—			—
Risk-free rate		1.4	%		0.7	%		—

Summary of Stock Options

A summary of options as of December 31, 2021 and the activity during the year then ended is presented below:

Options	Shares (In thousands)			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (In years)		Aggregate Intrinsic Value (In thousands)
Outstanding at January 1, 2021		422		$	17.83
Granted		178			26.48
Exercised		(81	)		12.47
Forfeited		(24	)		17.64
Expired		(2	)		35.82
Outstanding at December 31, 2021		493		$	21.75		5.4	$	2,805
Exercisable at December 31, 2021		122		$	22.82		3.4	$	906

Summary of Restricted Stock Units

	Restricted Stock Units
	Shares (In thousands)			Weighted- Average Grant Date Fair Value
Nonvested at January 1, 2021		1,241		$	11.58
Granted		164			24.15
Vested		(803	)		11.43
Forfeited		(21	)		15.48
Nonvested at December 31, 2021		581		$	15.20

Summary of Performance-Based Stock Units

	Performance Stock Units
	Shares (In thousands)			Weighted- Average Grant Date Fair Value
Nonvested at January 1, 2021		86		$	20.30
Vested		(84	)		20.31
Forfeited		(2	)		19.71
Nonvested at December 31, 2021		—		$	—

Summary of Market Stock Units

	Market Stock Units
	Shares (In thousands)		Weighted- Average Grant Date Fair Value
Nonvested at January 1, 2021		150	$	18.84
Nonvested at December 31, 2021		150	$	18.84