Annual report pursuant to Section 13 and 15(d)

Schedule of Effective Income Tax Rate Reconciliation (Details)

v2.4.1.9
Schedule of Effective Income Tax Rate Reconciliation (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Effective Income Tax Rate Reconciliaton [Line Items]                      
Income Tax Expense (Benefit) $ (11,718)us-gaap_IncomeTaxExpenseBenefit $ (4,858)us-gaap_IncomeTaxExpenseBenefit $ (23,260)us-gaap_IncomeTaxExpenseBenefit $ (33,902)us-gaap_IncomeTaxExpenseBenefit $ 6,602us-gaap_IncomeTaxExpenseBenefit $ 23,726us-gaap_IncomeTaxExpenseBenefit $ 49,119us-gaap_IncomeTaxExpenseBenefit $ 4,964us-gaap_IncomeTaxExpenseBenefit $ (73,738)us-gaap_IncomeTaxExpenseBenefit $ 84,411us-gaap_IncomeTaxExpenseBenefit $ (42,219)us-gaap_IncomeTaxExpenseBenefit
Effective Income Tax [Member]                      
Effective Income Tax Rate Reconciliaton [Line Items]                      
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate                 32,691us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
225,573us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
84,894us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
Income Tax Reconciliation, State and Local Income Taxes                 10us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
4us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
2us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
Income Tax Reconciliation, Nondeductible Expense                 1,636us-gaap_IncomeTaxReconciliationNondeductibleExpense
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
17,681us-gaap_IncomeTaxReconciliationNondeductibleExpense
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
118us-gaap_IncomeTaxReconciliationNondeductibleExpense
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
Income Tax Reconciliation, Deductions, Dividends                 (108,075)us-gaap_IncomeTaxReconciliationDeductionsDividends
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
(158,847)us-gaap_IncomeTaxReconciliationDeductionsDividends
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
(127,233)us-gaap_IncomeTaxReconciliationDeductionsDividends
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
Income Tax Expense (Benefit)                 $ (73,738)us-gaap_IncomeTaxExpenseBenefit
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
$ 84,411us-gaap_IncomeTaxExpenseBenefit
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
$ (42,219)us-gaap_IncomeTaxExpenseBenefit
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxMember
Effective Income Tax Rate [Member]                      
Effective Income Tax Rate Reconciliaton [Line Items]                      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate                 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
Effective Income Tax Rate Reconciliation, State and Local Income Taxes                 0.00%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
0.00%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
0.00%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
Effective Income Tax Rate Reconciliation, Nondeductible Expense                 2.00%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
3.00%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
0.00%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
Effective Income Tax Rate Reconciliation, Deductions, Dividends                 (116.00%)us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsDividends
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
(24.00%)us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsDividends
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
(51.00%)us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsDividends
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
Effective Income Tax Rate Reconciliation, Percent                 (79.00%)us-gaap_EffectiveIncomeTaxRateContinuingOperations
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
13.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember
(17.00%)us-gaap_EffectiveIncomeTaxRateContinuingOperations
/ two_EffectiveIncomeTaxRateReconciliationAxis
= two_EffectiveIncomeTaxRateMember