XML 87 R75.htm IDEA: XBRL DOCUMENT
v3.21.2

Derivative Financial Instruments - Derivative Financial Instruments (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Interest rate swaps, notional amount | $ 1,556,801 | $ 1,481,109
Interest rate swaps, net carrying value | (35,522) | (59,668)
Designated as Hedging Instrument [Member] |  |
Interest rate swaps, notional amount | 310,900 | 316,100
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |
Interest rate swaps, notional amount | 996,500 | 1,021,500
Not Designated as Hedging Instrument [Member] |  |
Interest rate swaps, notional amount | 249,400 | 143,600
Interest Rate Swaps 1 [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |
Interest rate swaps, notional amount | 355,000 |
Interest rate swaps, net carrying value | 3,757 |
Interest Rate Swaps 1 [Member] | Not Designated as Hedging Instrument [Member] |  |
Interest rate swaps, notional amount | 115,681 | 62,779
Interest rate swaps, net carrying value | 3,241 | 1,319
Interest Rate Swaps 2 [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] |  |
Interest rate swaps, notional amount | 310,939 | 316,051
Interest rate swaps, net carrying value | (17,858) | (28,689)
Interest Rate Swap [Member] |  |
Interest rate swaps, notional amount | 310,900 | 316,100
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |
Interest rate swaps, notional amount | 641,500 | 1,021,500
Interest rate swaps, net carrying value | (17,165) | (25,300)
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member] |  |
Interest rate swaps, notional amount | 133,681 | 80,779
Interest rate swaps, net carrying value | $ (7,497) | $ (6,998)

X
- Definition Nominal or face amount used to calculate payments on the derivative asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeAssetNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet. + References No definition available. + Details
Name: | us-gaap_InterestRateDerivativesAtFairValueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ffic_InterestRateSwaps1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ffic_InterestRateSwaps2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_FairValueHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |