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SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Apr. 28, 2020 | Apr. 30, 2018 | Sep. 30, 2020 | May 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Remaining unrecognized compensation expense related to non-vested awards |  |  | $ 116,000,000 |
Weighted average service period over which compensation cost is expected to be recognized (in years) |  |  | 1 year 7 months 2 days |
2014 Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Maximum shares authorized (in shares) |  |  |  | 18,000,000
Common shares available for issuance (in shares) |  |  |  | 20,000,000
Number of additional shares available for issuance (in shares) | 13,500,000 | 11,900,000 |  |
Number of shares available for future grant (in shares) |  |  | 17,067,000 |
2014 Plan | Non-employee Director |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Aggregate fair market value on awards granted during any calendar year |  | $ 750,000 |  |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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