Quarterly report pursuant to Section 13 or 15(d)

Accrued Interest Receivable Schedule of Accounts, Notes, Loans and Financing Receivable (Details)

v2.4.1.9
Accrued Interest Receivable Schedule of Accounts, Notes, Loans and Financing Receivable (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable $ 62,516us-gaap_InterestReceivable $ 65,529us-gaap_InterestReceivable
Loans Held-for-sale, Mortgages [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 1,678us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= two_LoansHeldForSaleMortgagesMember
1,997us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= two_LoansHeldForSaleMortgagesMember
Loans Held-for-investment, Mortgages [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 11,693us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= two_LoansHeldforinvestmentResidentialMortgagesMember
10,197us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= two_LoansHeldforinvestmentResidentialMortgagesMember
Loans Held-for-investment, Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 44us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= two_LoansHeldforinvestmentCommercialRealEstateMember
0us-gaap_InterestReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= two_LoansHeldforinvestmentCommercialRealEstateMember
US Treasury Securities [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 3,674us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USTreasurySecuritiesMember
8,084us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USTreasurySecuritiesMember
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 9,210us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FederalHomeLoanMortgageCorporationCertificatesAndObligationsFHLMCMember
8,734us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FederalHomeLoanMortgageCorporationCertificatesAndObligationsFHLMCMember
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 22,315us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FederalNationalMortgageAssociationCertificatesAndObligationsFNMAMember
22,392us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FederalNationalMortgageAssociationCertificatesAndObligationsFNMAMember
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 10,137us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
10,290us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
Mortgage-backed Securities, Issued by Private Enterprises [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 3,765us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
3,835us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByPrivateEnterprisesMember
Available-for-sale Securities [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable $ 45,427us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AvailableforsaleSecuritiesMember
$ 45,251us-gaap_InterestReceivable
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AvailableforsaleSecuritiesMember