Annual report pursuant to Section 13 and 15(d)

Related Party Transactions (Details)

v2.4.1.9
Related Party Transactions (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Related Party Transaction [Line Items]      
Gross Asset Management Costs, before Reduction $ 48,803two_GrossAssetManagementCostsBeforeReduction $ 46,047two_GrossAssetManagementCostsBeforeReduction $ 33,168two_GrossAssetManagementCostsBeforeReduction
Management Fee, Percent 1.50%two_ManagementFeePercent    
Reduction of Mangement Fees   4,300two_ReductionOfMangementFees  
Costs and Expenses, Related Party 15,501us-gaap_CostsAndExpensesRelatedParty 9,946us-gaap_CostsAndExpensesRelatedParty 11,773us-gaap_CostsAndExpensesRelatedParty
Allocated Share-based Compensation Expense 11,704us-gaap_AllocatedShareBasedCompensationExpense 3,888us-gaap_AllocatedShareBasedCompensationExpense 488us-gaap_AllocatedShareBasedCompensationExpense
Discontinued Operation, Future Gain (Loss) on Disposal of Discontinued Operation, Net of Tax     4,000two_DiscontinuedOperationFutureGainLossOnDisposalOfDiscontinuedOperationNetOfTax
Reduction of Future Management Fees     4,300two_ReductionOfFutureManagementFees
Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, Net of Tax $ 0us-gaap_DiscontinuedOperationAmountOfAdjustmentToPriorPeriodGainLossOnDisposalNetOfTax $ 3,861us-gaap_DiscontinuedOperationAmountOfAdjustmentToPriorPeriodGainLossOnDisposalNetOfTax