Loans Receivable, Net - Schedule Of Current Expected Credit Loss Reserve By Pool (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($)
Loans Receivable, Net
CECL reserve,Begining	$ 0
Initial CECL reserve	13,942
Increase in CECL reserve	98,752
CECL reserve, Ending	112,694
US Loans [Member]
Loans Receivable, Net
CECL reserve,Begining	0
Initial CECL reserve	8,955
Increase in CECL reserve	55,906
CECL reserve, Ending	64,861
Non-US Loans [Member]
Loans Receivable, Net
CECL reserve,Begining	0
Initial CECL reserve	3,631
Increase in CECL reserve	18,194
CECL reserve, Ending	21,825
Unique Loans [Member]
Loans Receivable, Net
CECL reserve,Begining	0
Initial CECL reserve	1,356
Increase in CECL reserve	24,652
CECL reserve, Ending	$ 26,008

Initial allowance provided, debt securities, loans receivables.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of increase (decrease) of allowance reserve for credit loss.

+ References

+ 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 allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L.1)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707

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