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STOCK-BASED COMPENSATION PLANS - Stock-Based Compensation Expense Recognized (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Stock Options [Member]
Compensation Related Costs [Abstract]
Stock-based compensation expense related to incentive and non-qualified stock options recognized	$ 2.6	$ 2.7	$ 2.2
Income tax benefit recognized	0.6	0.7	0.5
Restricted Stock [Member]
Compensation Related Costs [Abstract]
Stock-based compensation expense related to incentive and non-qualified stock options recognized	$ 3.3	$ 3.3	$ 2.8

X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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