LOANS AND LEASES RECEIVABLE, NET LOANS AND LEASES RECEIVABLE, NET - Direct Financing and Sales-type Leases, and Lease Receivable Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Loans and Leases Receivable Disclosure [Abstract]
Minimum lease payments receivable	$ 430,391	$ 301,835
Estimated residual value of leased equipment	13,352	12,406
Unamortized initial direct costs	6,026	1,806
Premium on acquired leases	0	26
Unearned income	(62,088)	(48,949)
Net investment in direct financing and sales-type leases	387,681	$ 267,124
Sales-type and Direct Financing Leases, Lease Receivable, Fiscal Year Maturity [Abstract]
2020	146,067
2020	124,702
2021	85,081
2022	50,625
2023	21,007
2025 and thereafter	2,909
Total	$ 430,391

Direct Financing Lease, Premium on Acquired Leases

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Direct Financing Lease, Unamortized Initial Direct Costs

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Amount of deferred selling profit from direct financing lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 6
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Amount of net investment in sales-type and direct financing lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77888421&loc=SL77919306-209978

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fourth fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in remainder of the fiscal year following latest fiscal year. Excludes interim and annual period when interim periods are reported on a rolling approach, from latest statement of financial position date.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases after fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in third fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in second fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

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Present value of lease payments not yet received by lessor and amount expected to be derived from underlying asset, following end of lease term guaranteed by lessee or other third party unrelated to lessor, from sales-type lease.

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Present value expected to be derived from underlying asset following end of lease term not guaranteed by lessee or other third party unrelated to lessor.

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