COMMITMENTS AND CONTINGENCIES - Allowance for Unfunded Commitments (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Provision for unfunded commitments	$ (899)	$ 68,449	$ (17,478)	$ 105,496
Unfunded Loan Commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance, Allowance	21,015	17,791	32,854	1,077
Addition due to acquisition	0	0	0	0
Provision for unfunded commitments	1,299	19,712	(10,540)	23,712
Ending balance, Allowance	22,314	37,503	22,314	37,503
Unfunded Loan Commitments \| Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance, Allowance	$ 0	$ 0	$ 0	$ 12,714

Amount of increase in allowance for credit loss on financing receivable purchased with credit deterioration.

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- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ References

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+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of credit loss expense (reversal of expense) for financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
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-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

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+ Details

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- Details

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- Details

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