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Related Party Transactions - Transactions with CCRE (Details) - USD ($) |  |  | 3 Months Ended
--- | --- | --- | ---
Aug. 16, 2019 | Jul. 22, 2019 | Mar. 31, 2021 | Mar. 31, 2020
Related Party Transaction |  |  |  |
Purchase of mortgage servicing rights |  |  | $ 0 | $ 92,000
Mortgage servicing right recognized |  |  | 18,677,000 | 21,075,000
Third Party Bank And Cantor Commercial Real Estate LP |  |  |  |
Related Party Transaction |  |  |  |
Amount of loan purchased by third-party (in percentage) | 80.00% |  |  |
Amount of loan retained by third-party (in percentage) | 20.00% |  |  |
Interest rate on loans receivable (in percentage) | 4.38% |  |  |
Fee paid to Newmark for brokering loan | $ 700,000 |  |  |
Real Estate Loan | Third Party Bank And Cantor Commercial Real Estate LP |  |  |  |
Related Party Transaction |  |  |  |
Commercial real estate loan |  | $ 146,600,000 |  |
CCRE |  |  |  |
Related Party Transaction |  |  |  |
Recognized related party revenues |  |  | 500,000 | 200,000
CCRE | Loan Referral Agreement |  |  |  |
Related Party Transaction |  |  |  |
Revenue from loan referral agreement |  |  | 0 | 0
CCRE | Primary Servicing Rights |  |  |  |
Related Party Transaction |  |  |  |
MSR acquired |  |  |  | 90,700,000
Purchase of mortgage servicing rights |  |  |  | 100,000
Mortgage servicing right recognized |  |  | $ 900,000 | $ 1,000,000.0
Mr. Gosin | Third Party Bank And Cantor Commercial Real Estate LP |  |  |  |
Related Party Transaction |  |  |  |
Ownership interest of loans receivable (in percentage) |  | 19.00% |  |

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- Definition Income from mortgage banking activities (fees and commissions) and servicing real estate mortgages, credit cards, and other financial assets held by others net of any related impairment of capitalized service costs. Also includes any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans. + References No definition available. + Details
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- Definition Amount, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 + Details
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- Definition The cash outflow to obtain servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. Rights may be obtained via (1) acquisition or assumption of a servicing obligation that does not relate to financial assets of the servicer or its consolidated affiliates; or (2) by originating mortgage loans and then (a) transferring the loans to a Variable Interest Entity (VIE) in a transaction that meets the necessary transfer and classification requirements, or (b) transferring the loans in a transaction that meets the requirements for sale accounting. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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- Definition The value of new servicing assets, subsequently measured at fair value, acquired or created during the current period through purchases or from transfers of financial assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746 + Details
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