XML 83 R67.htm IDEA: XBRL DOCUMENT
v3.25.4

Other assets and liabilities - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
Cash as collateral for certain derivatives | $ 9.6 | $ 9.3
Cash posted as collateral by company | 5.5 | 0.7
Cash pledged as collateral against derivatives related to variation margin | $ 4.1 | $ 8.6

X
- Definition The details about cash pledged as collateral against derivatives related to variation margin. + References No definition available. + Details
Name: | mitt_CashPledgedAsCollateralAgainstDerivativesRelatedToVariationMargin
Namespace Prefix: | mitt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Cash Posted As Collateral By Company + References No definition available. + Details
Name: | mitt_CashPostedAsCollateralByCompany
Namespace Prefix: | mitt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the proceeds pledged to serve as collateral against certain derivatives during the period. + References No definition available. + Details
Name: | mitt_ProceedsPledgedToServeCollateralAgainstCertainDerivatives
Namespace Prefix: | mitt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration