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FEDERAL HOME LOAN BANK ADVANCES AND SHORT-TERM BORROWINGS - Summary of Advances (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Federal Home Loan Bank, Advances [Line Items] |  |
Fixed bank advances | $ 730,000 | $ 805,000
Variable bank advances | $ 465,000 | $ 715,000
FHLB variable-rate, weighted average interest rate (percent) | 1.66% | 2.56%
Minimum |  |
Federal Home Loan Bank, Advances [Line Items] |  |
Company advances weighted average interest rate (percent) | 1.82% | 1.61%
Maximum |  |
Federal Home Loan Bank, Advances [Line Items] |  |
Company advances weighted average interest rate (percent) | 3.32% | 3.32%
Weighted Average |  |
Federal Home Loan Bank, Advances [Line Items] |  |
Company advances weighted average interest rate (percent) | 2.66% | 2.58%

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- Definition States the interest rate applicable to Federal Home Loan Bank advances outstanding as of the Balance Sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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- Definition Amount of Federal Home Loan Bank (FHLB) advances which have fixed interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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