DERIVATIVE INSTRUMENTS (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest rate caps
Derivatives, Fair Value [Line Items]
Notional Amount	$ 100,000	$ 100,000	$ 366,700
Fair Value Derivatives, Asset	0	4	$ 1,106
Fair Value Derivatives, Liability	0	0
Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Notional Amount	24,884	3,429
Fair Value Derivatives, Asset	(848)	95
Fair Value Derivatives, Liability	$ 0	0
Embedded conversion options
Derivatives, Fair Value [Line Items]
Notional Amount		180,252
Fair Value Derivatives, Asset		0
Fair Value Derivatives, Liability		$ 41,697

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 55
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-Publisher FASB
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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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