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Subsequent Events (Details) (Repayment of Debt, USD $) In Thousands, unless otherwise specified | 0 Months Ended
--- | ---
Jul. 31, 2012 1998 Debenture Subordinated Debt | Jul. 31, 2012 1998 Debenture Secured Debt | Jul. 31, 2012 1998 Preferred Securities Securities Sold under Agreements to Repurchase | Jul. 15, 2012 2005 Securitization and Sale of Revolving Mortgage Loans Secured Debt
Subsequent Event [Line Items] |  |  |  |
Stated interest rate for debt (percent) | 8.05% |  | 8.05% |
Face value of debt instrument | $ 154,640 |  | $ 150,000 |
Amount of debt redeemed | 163,569 |  | 158,661 |
Redeemed debt face amount (percent) | 102.42% |  | 102.42% |
Reductions in long-term borrowings from repayments of debt |  | 154,640 |  | 21,565
Prepayment penalty interest rate (percent) |  | 2.42% |  |
Prepayment penalty expense |  | $ 3,630 |  |

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- Definition The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 16, 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 + Details
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- Definition Interest rate stated in the contractual debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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