Period of time related to S&P 500 Index.

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- Definition

The qualified retirement eligibility age for grants awarded in and after 2017.

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No definition available.

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- Definition

The qualified retirement eligibility number of years of service for grants awarded in and after 2017.

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Original Units Granted, Percent

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Number of Shares of Common Stock of Which Instrument is Convertible

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Correlation with S&P500

+ References

No definition available.

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- Definition

Period of time related to volatility.

+ References

No definition available.

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- Definition

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

+ References

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

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

+ References

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

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

Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(02)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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

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 used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

+ References

No definition available.

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STOCK-BASED COMPENSATION (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended		9 Months Ended
STOCK-BASED COMPENSATION (Details) - USD ($) $ in Millions	May 31, 2022	Feb. 28, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense			$ 7.0	$ 5.5	$ 23.1	$ 22.7
Payments for the purchase of shares to satisfy the employee income tax withholdings					$ 8.8	$ 6.0
RSAs and RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares of common stock of which unit is convertible (in shares)			1		1
Vesting period					3 years
Qualified retirement eligibility age for grants awarded in and after 2017					55 years
Qualified retirement eligibility number of years of service for grants awarded in and after 2017					10 years
Shares purchased to satisfy the employee income tax withholdings (in shares)					68,214
Payments for the purchase of shares to satisfy the employee income tax withholdings					$ 8.1
Vested (in shares)					199,664
RSAs and RSUs \| Director
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period					1 year
PSUs
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares of common stock of which unit is convertible (in shares)			1		1
Vesting period					3 years
Shares purchased to satisfy the employee income tax withholdings (in shares)					5,245
Payments for the purchase of shares to satisfy the employee income tax withholdings					$ 0.6
Vested (in shares)					16,834
Risk-free interest rate	2.88%	1.75%
Volatility time period	3 years	3 years
Expected volatility	32.80%	32.20%
Correlation to S&P 500 Index time period	3 years	3 years
Correlation with S&P index	0.52	0.51
Unrecognized compensation expense			$ 45.0		$ 45.0
Unrecognized compensation expense, period for recognition					2 years
PSUs \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Units ultimately expected to be awarded					0.00%
PSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Units ultimately expected to be awarded					200.00%
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Vested (in shares)					181,780