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v3.22.4

Borrowed Funds (Details) | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) item $ / item
Advances from Federal Home Loan Banks and Letters of Credit |  | $ 1,889,200,000
Subordinated Borrowing, Interest Rate | 6.00% |
Subordinated debentures | $ 186,965,000 | 122,885,000
Repayments of subordinated debt |  | $ 90,300,000
Number of repayments for subordinated debt in call feature |  | 3
Subordinated debt called at par | item |  | 2
Subordinated debt, premium | $ / item |  | 102.5
Flushing Bank |  |
Proceeds from subordinated debt | 50,000,000.0 |
Capital Securities [Member] | Flushing Financial Capital Trust IV [Member] |  |
Proceeds from Issuance of Debt | 20,600,000 |
Capital Securities [Member] | Flushing Financial Capital Trust II [Member] |  |
Proceeds from Issuance of Debt | 20,600,000 |
Capital Securities [Member] | Flushing Financial Capital Trust III [Member] |  |
Proceeds from Issuance of Debt | 20,600,000 |
Unsecured Line of Credit [Member] |  |
Unsecured lines of credit | 1,108,000,000.0 |
Federal Home Loan Bank of New York [Member] |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available | 3,800,100,000 |
Federal Home Loan Bank advances and other borrowings | $ 815,501,000 | $ 611,187,000
Federal Home Loan Bank Advances [Member] | Federal Home Loan Bank of New York [Member] | Minimum [Member] |  |
Debt Instrument, Term | 7 days |
Federal Home Loan Bank Advances [Member] | Federal Home Loan Bank of New York [Member] | Maximum [Member] |  |
Debt Instrument, Term | 3 years |
Other Borrowings [Member] | Other Borrowings Due in 2022 |  |
Unsecured debt | $ 0 | 25,000,000
Subordinated Debentures. |  |
Net Proceeds | 63,600,000 |
Debt Instrument, Face Amount | 65,000,000.0 | $ 125,000,000.0
Subordinated Borrowing, Interest Rate |  | 3.125%
Proceeds from Issuance of Debt |  | $ 122,800,000
Subordinated debentures | 186,965,000 | 122,885,000
Unamortized debt issuance costs | 3,000,000.0 |
Subordinated Debentures. | Subordinated debentures Due in 2031 |  |
Subordinated debentures | $ 123,285,000 | 122,885,000
Subordinated Debt One [Member] |  |
Repayments of subordinated debt |  | 75,000,000.0
Subordinated Debt Two [Member] |  |
Repayments of subordinated debt |  | 7,800,000
Subordinated Debt Three [Member] |  |
Repayments of subordinated debt |  | 7,500,000
Premium paid upon call |  | $ 200,000

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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + 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 https://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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