Represents the number of separate incentive compensation programs within a incentive compensation plan.

No definition available.

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- Definition

Represents the number of share based compensation plans utilized by the entity.

+ References

No definition available.

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- References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of tax benefit from exercise of option under share-based payment arrangement.

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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

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 additional shares authorized for issuance under share-based payment arrangement.

+ References

No definition available.

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- Definition

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

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Gross number of share options (or share units) granted during the period.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

+ Details

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SHARE-BASED AWARDS - SUMMARY (Details) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) plan $ / shares shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Share-based expense (net of estimated forfeitures)
Share-based compensation expense	$ 18.3	$ 19.3	$ 18.8
Intrinsic value of options exercised			5.8
Tax benefit realized upon stock vesting	10.6	8.0	3.3
Fair value of stock vested	44.0	$ 33.5	$ 13.1
Non-vested restricted stock units and performance-based equity awards
Share-based expense (net of estimated forfeitures)
Unrecognized compensation cost	$ 18.4
Unrecognized compensation cost, weighted average period for recognition	1 year 8 months 12 days
Restricted Stock Units
Share-based compensation
Options granted, weighted average grant-date fair value (in dollars per share) \| $ / shares	$ 100.50
Activity in the entity's stock option plans
Added by performance factor (in shares) \| shares	165
2016 Plan
Share-based compensation
Common stock initially available for future issuance (in shares) \| shares	4,350
Additional shares authorized for issuance \| shares	0
Number of separate incentive compensation programs \| plan	4
Number of share based compensation plans within the entity's incentive compensation programs \| plan	3
2016 Plan \| Discretionary Grant Program
Share-based compensation
Minimum exercise price as a percentage of fair market value of common stock	100.00%
2016 Plan \| Time Based Restricted Stock Units \| Stock Issuance Program
Share-based compensation
Vesting period of awards granted	3 years
2016 Plan \| Time Based Restricted Stock Units \| Automatic Grant Program
Share-based compensation
Vesting period of awards granted	1 year
2016 Plan \| Performance Based Restricted Stock Units \| Stock Issuance Program
Share-based compensation
Vesting period of awards granted	3 years
2016 Plan \| Restricted Stock Units
Activity in the entity's stock option plans
Added by performance factor (in shares) \| shares	165