XML 80 R78.htm IDEA: XBRL DOCUMENT
v3.20.1

Derivative and Hedging Activities - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Interest Income (Expense), Net | $ 244,467 |  | $ 241,325 |  |
Gain (loss) on interest rate cash flow hedge ineffectiveness | (645,000) |  |  |  |
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months, net | 831,000,000 |  |  |  |
Designated as Hedging Instrument [Member] |  |  |  |  |
Derivative, Notional Amount | 2,000,000 |  |  | $ 2,000,000 |
Interest Income (Expense), Net | 3,900 |  | $ 239,000 |  |
Interest Rate Swap [Member] | Cash Flow Hedging [Member] |  |  |  |  |
Derivative, Notional Amount | 2,250,000 |  |  | 800,000 |
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] |  |  |  |  |
Derivative, Notional Amount | 2,000,000 |  |  | 2,000,000 |
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | LCH |  |  |  |  |
Derivative, Notional Amount | 4,300,000 |  |  |  |
Loans and leases |  |  |  |  |
Amortized Cost | 4,300,000 |  |  | 4,500,000 |
Cumulative Amount of Fair Value Hedging Adjustments Included in the Carrying Amount of the Hedged Assets | $ 81,613 | [1] |  | $ 53,483 | [2]
[1] | These amounts include the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. At March 31, 2020, the amortized cost basis of the closed portfolios used in these hedging relationships was $4.3 billion; the cumulative basis adjustments associated with these hedging relationships was $81.6 million; and the amount of the designated hedged items was $2.0 billion.
[2] | These amounts include the amortized cost basis of closed portfolios used to designate hedging relationships in which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. At December 31, 2019, the amortized cost basis of the closed portfolios used in these hedging relationships was $4.5 billion; the cumulative basis adjustments associated with these hedging relationships was $53.5 million; and the amount of the designated hedged items was $2.0 billion.

X
- Definition Amortized cost of closed portfolio of prepayable financial asset and beneficial interest secured by prepayable financial instrument, used to designate hedging relationship in which hedged item is last layer expected to be remaining at end of hedging relationship. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4EEE -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109999718-113959 + Details
Name: | us-gaap_ClosedPortfolioAndBeneficialInterestLastOfLayerAmortizedCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregate fair value of all derivative assets designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations. + References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: 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=109980867&loc=SL5580258-113959 Reference 2: 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=109980867&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The net gain (loss) during the reporting period due to ineffectiveness in interest rate cash flow hedges. Recognized in earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
Name: | us-gaap_GainLossOnInterestRateCashFlowHedgeIneffectiveness
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net amount of operating interest income (expense). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.10) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_InterestIncomeExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994 + Details
Name: | us-gaap_InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
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: | nycb_DerivativeClearingHouseAxis=nycb_LondonClearingHouseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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