Incremental stock based compensation expense.

No definition available.

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- Definition

Intrinsic value of options exercised

+ References

No definition available.

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- Definition

Performance-based restricted stock units, grant and typically vest percentage.

+ References

No definition available.

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- Definition

Performance-based restricted stock units, vesting period.

+ References

No definition available.

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- Definition

Weighted average remaining contractual term for vested portions of options expired, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

+ References

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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- Definition

Amount of noncash expense for option under share-based payment arrangement.

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Stock-based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	4 years
Weighted-average grant date fair value of stock options granted	$ 0	$ 0	$ 0
Compensation cost for options	$ 1.1
Restricted stock units, vesting period	3 years
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Intrinsic value of options exercised	$ 32.0	$ 4.8	$ 0.3
Unrecognized stock-based compensation expense	$ 5.0
Unrecognized stock-based compensation expense, weighted average recognition period	1 year 10 months 24 days
Incremental Stock Based Compensation Expense	$ 2.7
Performance-Based Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair value of options vested	6.6
Unrecognized stock-based compensation expense	$ 55.3
Restricted stock units expire period	10 years
Restricted stock units, vesting period	3 years
First 12 Months [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of stock options vesting	25.00%
Remaining 36 Months [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of stock options vesting	75.00%
One Year [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units, vesting period	1 year
Six Months [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units, vesting period	6 months
Twenty Five Vesting Percentage [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units, grant and typically vest percentage	25.00%
Twelve Point Five Vesting Percentage [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units, grant and typically vest percentage	12.50%
2016 Stock Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common Stock, Authorized	9,256,007