XML 86 R75.htm IDEA: XBRL DOCUMENT
v3.20.2

Financing Agreements (Senior Secured Credit Agreement - Narrative) (Details) - Senior Secured Term Loan Facility | Jun. 26, 2020 USD ($)
--- | ---
Repurchase agreements counterparty risk |
Debt instrument, face amount | $ 500,000,000
Original issue discount, term loan | 1.00%
Stated interest rate | 11.00%
Optional prepayment rate prior to 3rd anniversary | 3.00%
Interest rate increase on third anniversary | 1.00%
Additional interest rate increase on each subsequent anniversary of the Funding Date | 1.00%
Increase upon of default status | 2.00%
Optional prepayment amount | $ 250,000,000
First Three Years |
Repurchase agreements counterparty risk |
Stated interest rate | 3.75%
After Third Year |
Repurchase agreements counterparty risk |
Stated interest rate | 4.50%

X
- Definition Debt Instrument, Interest Rate, Increase for Default Status + References No definition available. + Details
Name: | mfa_DebtInstrumentInterestRateIncreaseforDefaultStatus
Namespace Prefix: | mfa_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Instrument, Interest Rate, Increase on Each Anniversary Subsequent to Funding Date + References No definition available. + Details
Name: | mfa_DebtInstrumentInterestRateIncreaseonEachAnniversarySubsequenttoFundingDate
Namespace Prefix: | mfa_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Stated Rate, Increase on Third Anniversary + References No definition available. + Details
Name: | mfa_DebtStatedRateIncreaseonThirdAnniversary
Namespace Prefix: | mfa_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Interest Rate, Optional Prepayment Rate + References No definition available. + Details
Name: | mfa_InterestRateOptionalPrepaymentRate
Namespace Prefix: | mfa_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Optional Prepayment Amount + References No definition available. + Details
Name: | mfa_OptionalPrepaymentAmount
Namespace Prefix: | mfa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Original Issue Discount, Term Loan + References No definition available. + Details
Name: | mfa_OriginalIssueDiscountTermLoan
Namespace Prefix: | mfa_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RepurchaseAgreementCounterpartyLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=mfa_SeniorSecuredTermLoanFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mfa_DebtInterestRateRangeAxis=mfa_FirstThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mfa_DebtInterestRateRangeAxis=mfa_AfterThirdYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |