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Loans Receivable and Allowance for Credit Losses - Composition of Loans Held-for-Investment Narrative (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Accrued interest receivable | $ 208.4 | $ 107.4
Asset Pledged as Collateral |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans receivable pledged to secure borrowings and provide additional borrowing capacity from the FRB and FHLB | 28,300.0 | 27,670.0
Commercial Lending |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Collateral dependent loans | 47.4 | 37.0
Consumer Lending |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Collateral dependent loans | $ 13.4 | $ 14.0

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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. + Details
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- Definition The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=35711157&loc=d3e42546-110969 + Details
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- Definition Amount, before allowance for credit loss, of accrued interest on 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 3B -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 + Details
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