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INCOME TAXES - Components of net deferred tax asset (liability), by balance sheet account (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Sep. 30, 2020
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Income Tax Contingency [Line Items] |  |
Net deferred liability | $ 48,106 | $ 32,782
Other assets |  |
Income Tax Contingency [Line Items] |  |
Net deferred asset | 323 | 614
Other liabilities |  |
Income Tax Contingency [Line Items] |  |
Net deferred liability | 49,289 | 34,356
Liabilities of discontinued operations |  |
Income Tax Contingency [Line Items] |  |
Net deferred asset | $ 860 | $ 960

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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