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Pledged Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Assets not pledged | $ 4,650,590 | $ 4,747,127
Securities Investment [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Assets not pledged | 297,601 | 676,095
Residential Mortgage [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Assets not pledged | 1,625,938 | 1,706,981
Commercial Loan [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Assets not pledged | 1,799,780 | 1,529,642
Consumer Loan [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Assets not pledged | 414,946 | 504,437
Auto And Leases Loan [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Assets not pledged | 512,325 | 329,972
Investments [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 148,837 | 398,074
Investments [Member] | Puerto Rico public fund deposits [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 146,381 | 191,908
Investments [Member] | Derivative [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 2,351 | 1,775
Investments [Member] | Securities Sold under Agreements to Repurchase, Short-Term [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 0 | 204,068
Mortgage Loan [Member] | Federal Home Loan Bank Advances [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 699,091 | 803,317
Commercial Loan [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 604,511 | 692,800
Commercial Loan [Member] | Puerto Rico public fund deposits [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 96,273 | 129,152
Commercial Loan [Member] | Federal Reserve Bank Advances [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 48,089 | 45,175
Commercial Loan [Member] | Federal Home Loan Bank Advances [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 460,149 | 518,473
Auto Loan [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 2,501,916 | 3,076,463
Auto Loan [Member] | Federal Reserve Bank Advances [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | 1,049,477 | 1,182,272
Bond For Trust Operation [Member] | Investments [Member] |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Pledged assets | $ 105 | $ 323

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- Definition Sum of the carrying amounts as of the date of the latest financial statement presented of securities which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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