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Bank subsidiary (Details 16) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2011 D | Dec. 31, 2010 D | Dec. 31, 2009 D
Securities sold under agreements to repurchase |  |  |
Repurchase liability | $ 183,229,000 |  |
Weighted-average interest rate (as a percent) | 1.56% |  |
Fair value plus accrued interest | 220,408,000 |  |
Amount outstanding as of end of the period | 183,229,000 |  |
Weighted-average interest rate as of end of the period (as a percent) | 1.56% |  |
Advances from Federal Home Loan Bank |  |  |
Thereafter | 50,000,000 |  |
Total amount due | 50,000,000 |  |
Weighted-average stated rate |  |  |
Thereafter (as a percent) | 4.28% |  |
Total weighted-average stated rate (as a percent) | 4.28% |  |
Identical securities |  |  |
Securities sold under agreements to repurchase |  |  |
Repurchase liability | 183,000,000 | 172,000,000 | 233,000,000
Weighted-average interest rate (as a percent) | 1.56% | 1.71% | 1.38%
Amount outstanding as of end of the period | 183,000,000 | 172,000,000 | 233,000,000
Average amount outstanding during the year | 183,000,000 | 201,000,000 | 230,000,000
Maximum amount outstanding as of any month-end | 186,000,000 | 238,000,000 | 241,000,000
Weighted-average interest rate as of end of the period (as a percent) | 1.56% | 1.71% | 1.38%
Weighted-average interest rate during the year (as a percent) | 1.61% | 1.53% | 1.55%
Weighted-average remaining days to maturity as of end of the period (in days) | 490 | 628 | 544
Overnight |  |  |
Securities sold under agreements to repurchase |  |  |
Repurchase liability | 132,932,000 |  |
Weighted-average interest rate (as a percent) | 0.35% |  |
Amount outstanding as of end of the period | 132,932,000 |  |
Weighted-average interest rate as of end of the period (as a percent) | 0.35% |  |
Overnight | Collateralized by mortgage-related securities and federal agency obligations |  |  |
Securities sold under agreements to repurchase |  |  |
Fair value plus accrued interest | 156,478,000 |  |
Over 90 days |  |  |
Securities sold under agreements to repurchase |  |  |
Repurchase liability | 50,297,000 |  |
Weighted-average interest rate (as a percent) | 4.75% |  |
Amount outstanding as of end of the period | 50,297,000 |  |
Weighted-average interest rate as of end of the period (as a percent) | 4.75% |  |
Over 90 days | Collateralized by mortgage-related securities and federal agency obligations |  |  |
Securities sold under agreements to repurchase |  |  |
Fair value plus accrued interest | $ 63,930,000 |  |

X
- Definition This is the average amount to be repaid to the counterparty as part of the repurchase agreements when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under repurchase agreements exceeds 10 percent of total assets, as of during the year. + References No definition available. + Details
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- Definition Represents the fair value of assets sold under agreements to repurchase and included the amount of accrued interest. + References No definition available. + Details
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- Definition This is the maximum amount to be repaid to the counterparty as part of the repurchase agreements when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under repurchase agreements exceeds 10 percent of total assets, as of any month end. + References No definition available. + Details
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- Definition Weighted-average remaining period of maturity for a group of securities or other assets sold under repurchase agreements, as of end of the period. + References No definition available. + Details
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- Definition The total of weighted average interest rate applicable to the Federal Home Loan Bank advances. + References No definition available. + Details
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- Definition The interest rate associated with the repurchase agreements. This is also known as the repo rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 4 -Section 08 -Paragraph m -Subparagraph 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)(A)(ii)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 + Details
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- Definition This is the amount to be repaid to the counterparty as part of the repurchase agreements when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under repurchase agreements exceeds 10 percent of total assets, as of the most recent balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 4 -Section 08 -Paragraph m -Subparagraph 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)(A)(ii)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 + Details
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- Definition Represents the aggregate dollar amount of all future maturities of Federal Home Loan Bank advances from the Balance Sheet date. This amount would be expected to agree to the sum total of the related Balance Sheet and footnote disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph f -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Chapter 15 -Paragraph 17, 37 -IssueDate 2006-05-01 -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 47 -Paragraph 10 -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. + Details
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- Definition The weighted average interest rate applicable to the Federal Home Loan Bank advances which are due after five years of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph f -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 AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Chapter 15 -Paragraph 17, 37 -IssueDate 2006-05-01 -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. + Details
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- Definition Amount of Federal Home Loan Bank advances outstanding which are due after five years of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 14 -Subparagraph f -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Chapter 15 -Paragraph 17, 37 -IssueDate 2006-05-01 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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