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STOCKHOLDERS' EQUITY AND COMPENSATION ARRANGEMENTS - Narrative (Details)	Jun. 10, 2020	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 USD ($)
Share-based Payment Arrangement [Abstract]
Stock split ratio, common stock	0.05
Number of shares available for issuance (in shares) | shares		100,500,000
Authorized repurchase amount | $			$ 300,000,000.0
Value of common stock remaining available for repurchase | $		$ 245,000,000.0
Number of shares available for future issuance (in shares) | shares		2,899,062

X

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Aggregate number of common shares reserved for future issuance.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Amount of stock repurchase plan authorized.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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-Name Accounting Standards Codification
-Topic 505
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