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Repurchase Agreements Repurchase Agreements Outstanding Balances and Key Metrics (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Repurchase agreements | $ 12,932,463us-gaap_AssetsSoldUnderAgreementsToRepurchaseRepurchaseLiability | $ 12,250,450us-gaap_AssetsSoldUnderAgreementsToRepurchaseRepurchaseLiability |
| Assets Sold under Agreements to Repurchase, Weighted Average Borrowing Rate, Excluding U.S. Treasuries and Interest Rate Swaps | 0.72%two_AssetsSoldUnderAgreementsToRepurchaseWeightedAverageBorrowingRateExcludingUSTreasuriesAndInterestRateSwaps | 0.75%two_AssetsSoldUnderAgreementsToRepurchaseWeightedAverageBorrowingRateExcludingUSTreasuriesAndInterestRateSwaps |
| Assets Sold under Agreements to Repurchase, Weighted Average Remaining Maturity, Excluding U.S. Treasuries and Interest Rate Swaps | 64two_AssetsSoldUnderAgreementsToRepurchaseWeightedAverageRemainingMaturityExcludingUSTreasuriesAndInterestRateSwaps | 72two_AssetsSoldUnderAgreementsToRepurchaseWeightedAverageRemainingMaturityExcludingUSTreasuriesAndInterestRateSwaps |
| Assets Sold under Agreements to Repurchase, Interest Rate | 0.64%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate | 0.69%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate |
| US Treasury Securities [Member] | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Repurchase agreements |
$ 1,996,250us-gaap_AssetsSoldUnderAgreementsToRepurchaseRepurchaseLiability / us-gaap_AssetsSoldUnderAgreementsToRepurchaseAxis = us-gaap_USTreasurySecuritiesMember |
$ 997,500us-gaap_AssetsSoldUnderAgreementsToRepurchaseRepurchaseLiability / us-gaap_AssetsSoldUnderAgreementsToRepurchaseAxis = us-gaap_USTreasurySecuritiesMember |
| Assets Sold under Agreements to Repurchase, Interest Rate |
0.23%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_AssetsSoldUnderAgreementsToRepurchaseAxis = us-gaap_USTreasurySecuritiesMember |
0.03%us-gaap_AssetsSoldUnderAgreementsToRepurchaseInterestRate / us-gaap_AssetsSoldUnderAgreementsToRepurchaseAxis = us-gaap_USTreasurySecuritiesMember |
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- Definition
The weighted average borrowing rate associated with repurchase agreements, excluding the debt associated with U.S. Treasuries and the effect of interest rate swaps. No definition available.
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- Definition
The weighted average remaining maturity of repurchase agreements (in days), excluding the debt associated with U.S. Treasuries and the effect of interest rate swaps. No definition available.
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- Definition
Interest rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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