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Offsetting Assets and Liabilities Offsetting Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2013
Offsetting Liabilities [Line Items] |
Offsetting Liabilities [Table Text Block] |
| Offsetting of Liabilities
| Gross Amount of Recognized Liabilities |  | Gross Amount Offset in the Balance Sheet |  | Net Amount of Liabilities Presented in the Balance Sheet |  | Gross Amount Not Offset in the Balance Sheet |  | Net Amount
Financial Instruments Posted as Collateral |  | Cash Posted as Collateral
December 31, 2013 |  |  |  |  |  |  |  |  |  |  |
Derivative liabilities | $ | 6,681 |  |  | $ | — |  |  | $ | 6,681 |  |  | $ | (1,299 | ) |  | $ | (5,382 | ) |  | $ | — |
Repurchase agreements | 3,580,754 |  |  | — |  |  | 3,580,754 |  |  | (3,580,754 | ) |  | — |  |  | — |
| $ | 3,587,435 |  |  | $ | — |  |  | $ | 3,587,435 |  |  | $ | (3,582,053 | ) |  | $ | (5,382 | ) |  | $ | — |
December 31, 2012: |  |  |  |  |  |  |  |  |  |  |
Derivative liabilities | $ | 42,537 |  |  | $ | — |  |  | $ | 42,537 |  |  | $ | (42,499 | ) |  | $ | (38 | ) |  | $ | — |
Repurchase agreements | 3,564,128 |  |  | — |  |  | 3,564,128 |  |  | (3,564,128 | ) |  | — |  |  | — |
| $ | 3,606,665 |  |  | $ | — |  |  | $ | 3,606,665 |  |  | $ | (3,606,627 | ) |  | $ | (38 | ) |  | $ | — |

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- Definition Tabular disclosure of derivative and other financial liabilities that are subject to offsetting, including master netting arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225877-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=20225523&loc=SL20225862-175312 + Details
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