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| <link:definition> 100520 - Disclosure - Derivative Instruments - Volume of Activity, in terms of Notional Amount, Related to Derivative Instruments (Details) </link:definition> |
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| <link:definition> 100540 - Disclosure - Offsetting of Financial Assets and Liabilities - Derivative Instruments and Short-term Borrowing Arrangements, including those Subject to Master Netting or Similar Arrangements (Details) </link:definition> |
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| <xsd:element id="ai_DerivativeAndOtherFinancialInstrumentCashCollateralTableTextBlock" name="DerivativeAndOtherFinancialInstrumentCashCollateralTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
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| <xsd:element id="ai_RequiredAnnualDistributionOfTaxableIncome" name="RequiredAnnualDistributionOfTaxableIncome" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_IntendedAnnualDistributionOfTaxableIncome" name="IntendedAnnualDistributionOfTaxableIncome" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_PercentageOfCashEquivalentsInvestedInMoneyMarketFunds" name="PercentageOfCashEquivalentsInvestedInMoneyMarketFunds" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/> |
| <xsd:element id="ai_SummaryOfSignificantAccountingPoliciesLineItems" name="SummaryOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_SummaryOfSignificantAccountingPoliciesTable" name="SummaryOfSignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_AccountingStandardsUpdate202004Member" name="AccountingStandardsUpdate202004Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_CommercialRealEstateMortgageLoanMember" name="CommercialRealEstateMortgageLoanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_HealthcareFacilitiesMortgageLoanMember" name="HealthcareFacilitiesMortgageLoanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_MortgageLoanDescriptionOfVariableRateBasis" name="MortgageLoanDescriptionOfVariableRateBasis" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_AvailablePeriodForExtension" name="AvailablePeriodForExtension" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_LineOfCreditFacilityCommittedFund" name="LineOfCreditFacilityCommittedFund" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_LineOfCreditFacilityUnfundedCommitment" name="LineOfCreditFacilityUnfundedCommitment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_MinimumAmountOfCapitalCommitmentForInvestmentsToCounterparty" name="MinimumAmountOfCapitalCommitmentForInvestmentsToCounterparty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_MinimumAmountOfCapitalCommitmentForInvestmentsToCounterpartyPeriodOfExpiration" name="MinimumAmountOfCapitalCommitmentForInvestmentsToCounterpartyPeriodOfExpiration" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_MSRServicingFeeBasisPoints" name="MSRServicingFeeBasisPoints" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/> |
| <xsd:element id="ai_CapitalInvestments" name="CapitalInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_AccretionOfInterestIncome" name="AccretionOfInterestIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_AmortizationOfInterestIncome" name="AmortizationOfInterestIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_ChangesInValuationInputsAndAssumptions" name="ChangesInValuationInputsAndAssumptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_ConstructionDrawCommitmentBalance" name="ConstructionDrawCommitmentBalance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_AggregateDifferenceOfFairValueLoansOverUnpaidPrincipalBalance" name="AggregateDifferenceOfFairValueLoansOverUnpaidPrincipalBalance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_MortgageLoanOptionalMaturityDateExtensionPeriod" name="MortgageLoanOptionalMaturityDateExtensionPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_OneMonthLiborMember" name="OneMonthLiborMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_SeniorNotesDue2023Member" name="SeniorNotesDue2023Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_RepurchaseAgreementNetAmount" name="RepurchaseAgreementNetAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_AssetsSoldUnderAgreementsToRepurchaseWeightedAverageRate" name="AssetsSoldUnderAgreementsToRepurchaseWeightedAverageRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/> |
| <xsd:element id="ai_WeightedAverageTermToMaturityPeriod" name="WeightedAverageTermToMaturityPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_UnsettledAgencyMortgageBackedSecuritiesMember" name="UnsettledAgencyMortgageBackedSecuritiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_AssetsSoldUnderAgreementsToRepurchaseWeightedAverageOutstandingBalance" name="AssetsSoldUnderAgreementsToRepurchaseWeightedAverageOutstandingBalance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_SecuritiesSoldUnderAgreementsToRepurchaseWeightedAverageInterestRate" name="SecuritiesSoldUnderAgreementsToRepurchaseWeightedAverageInterestRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_SeniorNotesDue2025Member" name="SeniorNotesDue2025Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_TrustPreferredDebtMember" name="TrustPreferredDebtMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_DebtInstrumentMaturityPeriod" name="DebtInstrumentMaturityPeriod" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_DebtInstrumentRepurchasedFaceAmountDuringThePeriod" name="DebtInstrumentRepurchasedFaceAmountDuringThePeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_DebtInstrumentRepurchaseAmountDuringThePeriod" name="DebtInstrumentRepurchaseAmountDuringThePeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_DebtInstrumentRedemptionAmount" name="DebtInstrumentRedemptionAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_TenYearUsTreasuryNoteFuturesMember" name="TenYearUsTreasuryNoteFuturesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_DerivativeAverageInterestRateNet" name="DerivativeAverageInterestRateNet" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/> |
| <xsd:element id="ai_LessThanThreeYearMaturityMember" name="LessThanThreeYearMaturityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_ThreeToLessThanSevenYearMaturityMember" name="ThreeToLessThanSevenYearMaturityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_SevenToLessThanTenYearsMaturityMember" name="SevenToLessThanTenYearsMaturityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_TenOrMoreYearsMaturityMember" name="TenOrMoreYearsMaturityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_ThreeToLessThanTenYearMaturityMember" name="ThreeToLessThanTenYearMaturityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_DerivativeMaturityMonthAndYear" name="DerivativeMaturityMonthAndYear" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_USTreasuryNoteFuturesMember" name="USTreasuryNoteFuturesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_OptionsOnUSTreasuryNoteFuturesMember" name="OptionsOnUSTreasuryNoteFuturesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_DerivativeOutstandingOptions" name="DerivativeOutstandingOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_DerivativeContractualForwardPricePurchaseAndSalesCommitment" name="DerivativeContractualForwardPricePurchaseAndSalesCommitment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_DerivativeMarketPricePurchaseAndSalesCommitment" name="DerivativeMarketPricePurchaseAndSalesCommitment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_OnePointFivePercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsPurchaseMember" name="OnePointFivePercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsPurchaseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_OnePointFivePercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsSaleMember" name="OnePointFivePercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsSaleMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_TwoPercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsPurchaseMember" name="TwoPercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsPurchaseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_TwoPercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsSaleMember" name="TwoPercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsSaleMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_TwoPointFivePercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsPurchaseMember" name="TwoPointFivePercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsPurchaseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_TwoPointFivePercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsSaleMember" name="TwoPointFivePercentThirtyYearMortgageBackedSecuritiesPurchaseSaleCommitmentsSaleMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_GainLossOnOtherDerivatives" name="GainLossOnOtherDerivatives" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_InterestRateSwapsNetInterestIncomeExpenseMember" name="InterestRateSwapsNetInterestIncomeExpenseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_InterestRateSwapsUnrealizedGainsLossesNetMember" name="InterestRateSwapsUnrealizedGainsLossesNetMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_InterestRateSwapsGainsLossesRealizedUponEarlyTerminationNetMember" name="InterestRateSwapsGainsLossesRealizedUponEarlyTerminationNetMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_TbaDollarRollIncomeMember" name="TbaDollarRollIncomeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_OtherGainsLossesOnTbaCommitmentsMember" name="OtherGainsLossesOnTbaCommitmentsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_DerivativeNotionalAmountAdditions" name="DerivativeNotionalAmountAdditions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_DerivativeNotionalAmountSettlements" name="DerivativeNotionalAmountSettlements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_DerivativeNotionalAmountTerminations" name="DerivativeNotionalAmountTerminations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_TwoYearUSTreasuryNoteFuturesMember" name="TwoYearUSTreasuryNoteFuturesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_PurchasedCallOptionsOnTenYearUSTreasuryNoteMember" name="PurchasedCallOptionsOnTenYearUSTreasuryNoteMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_PutOptionsOnSalesAndPurchaseFiveHundredETFMember" name="PutOptionsOnSalesAndPurchaseFiveHundredETFMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_MarginCashCollateralPosted" name="MarginCashCollateralPosted" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_UnsettledMortgageBackedSecuritiesTradesAndTbaCommitmentsNetMember" name="UnsettledMortgageBackedSecuritiesTradesAndTbaCommitmentsNetMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_DerivativeAssetFairValueAmountOffset" name="DerivativeAssetFairValueAmountOffset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_OffsettingAssetsAndLiabilitiesLineItems" name="OffsettingAssetsAndLiabilitiesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_OffsettingAssetsAndLiabilitiesTable" name="OffsettingAssetsAndLiabilitiesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_DerivativeLiabilityFairValueAmountOffset" name="DerivativeLiabilityFairValueAmountOffset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_MortgageServicingRightsFinancingReceivablesMember" name="MortgageServicingRightsFinancingReceivablesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_AnnualPerLoanCostOfServicingMember" name="AnnualPerLoanCostOfServicingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_AlternativeInvestmentMeasurementInputEstimatedWeightedAverageRateOfDefault" name="AlternativeInvestmentMeasurementInputEstimatedWeightedAverageRateOfDefault" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_EquitySecuritiesOfPubliclyTradedCompaniesMember" name="EquitySecuritiesOfPubliclyTradedCompaniesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_MeasurementInputStockPriceToNetAssetMultipleMember" name="MeasurementInputStockPriceToNetAssetMultipleMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_MeasurementInputCostOfEquityDiscountRateMember" name="MeasurementInputCostOfEquityDiscountRateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_MortgageServicingRightsFinancingReceivableFairValueDisclosure" name="MortgageServicingRightsFinancingReceivableFairValueDisclosure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_PaymentsNet" name="PaymentsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAccretionOfDiscount" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAccretionOfDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityAccretionOfDiscount" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityAccretionOfDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/> |
| <xsd:element id="ai_OperatingLossCarryforwardsExpirationPeriod" name="OperatingLossCarryforwardsExpirationPeriod" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_CapitalLossCarryforwardsExpirationRemainderOfFiscalYear" name="CapitalLossCarryforwardsExpirationRemainderOfFiscalYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/> |
| <xsd:element id="ai_CapitalLossCarryforwardsExpirationInYearTwo" name="CapitalLossCarryforwardsExpirationInYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_CapitalLossCarryforwardsExpirationInYearThree" name="CapitalLossCarryforwardsExpirationInYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_OperatingLossCarryforwardsSubjectToExpiration" name="OperatingLossCarryforwardsSubjectToExpiration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_OperatingLossCarryforwardsNotSubjectToExpiration" name="OperatingLossCarryforwardsNotSubjectToExpiration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/> |
| <xsd:element id="ai_IncomeTaxDisclosureLineItems" name="IncomeTaxDisclosureLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_IncomeTaxDisclosureTable" name="IncomeTaxDisclosureTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_RestrictedStockRestrictedStockUnitsAndPerformanceSharesMember" name="RestrictedStockRestrictedStockUnitsAndPerformanceSharesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_CommonStockVotingRightsPerShareOwned" name="CommonStockVotingRightsPerShareOwned" type="xbrli:pureItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/> |
| <xsd:element id="ai_AmendedNewEquityDistributionAgreementsMember" name="AmendedNewEquityDistributionAgreementsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_CommonEquityDistributionAgreementsMember" name="CommonEquityDistributionAgreementsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_UndesignatedPreferredStockMember" name="UndesignatedPreferredStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_SeriesBPreferredEquityDistributionAgreementMember" name="SeriesBPreferredEquityDistributionAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_ShareholderRightsPlanMember" name="ShareholderRightsPlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/> |
| <xsd:element id="ai_PreferredStockSharesUnissued" name="PreferredStockSharesUnissued" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/> |
| <xsd:element id="ai_PreferredStockVotingRightsPerShareOwned" name="PreferredStockVotingRightsPerShareOwned" type="xbrli:pureItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/> |
| <xsd:element id="ai_PreferredStockAnnualDividendRatePerShare" name="PreferredStockAnnualDividendRatePerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/> |
| <xsd:element id="ai_PreferredStockRateConversionDate" name="PreferredStockRateConversionDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_PreferredStockVariableDividendSpreadRate" name="PreferredStockVariableDividendSpreadRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_ShareholderRightsAgreementExpirationTermAmended" name="ShareholderRightsAgreementExpirationTermAmended" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| <xsd:element id="ai_PercentageOfBeneficialOwnershipOfCommonStock" name="PercentageOfBeneficialOwnershipOfCommonStock" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/> |
| </xsd:schema> |