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Loans Held for Sale - Composition of Loans Held for Sale (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Receivables Held-for-sale [Abstract]
Multi-family loans, at lower of cost or fair value	$ 441,732	$ 482,873
Commercial mortgage loans, at lower of cost or fair value	17,600	0
Total commercial loans held for sale	459,332	482,873
Home equity conversion mortgages, at lower of cost or fair value	1,325	1,325
Residential mortgage loans, at fair value	3,507	2,130
Total consumer loans held for sale	4,832	3,455
Loans held for sale	$ 464,164	$ 486,328

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Commercial Mortgage Loans, Held-for-Sale

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- Definition

Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Commercial, Real Estate1

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- Definition

Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Consumer

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- Definition

Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Consumer, Home Equity1

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- Definition

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- Definition

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- Definition

Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=120238483&loc=d3e48678-111004

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