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Fair Value Measurements - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) (USD $)
In Thousands, unless otherwise specified |
9 Months Ended | |
|---|---|---|
|
Sep. 30, 2013
|
Dec. 31, 2012
|
|
| Assets | ||
| Securities available for sale | $ 453,046 | $ 640,212 |
| State tax credits held for sale | 20,139 | 23,020 |
| Liabilities | ||
| State tax credits, held for sale | 55,810 | 61,284 |
| Tax credit stream, term | 10 years | |
| Years of tax credits generated | 10 years | |
|
Obligations of U.S. Government sponsored enterprises
|
||
| Assets | ||
| Securities available for sale | 93,974 | 152,368 |
|
Obligations of states and political subdivisions
|
||
| Assets | ||
| Securities available for sale | 51,193 | 53,003 |
|
Residential mortgage-backed securities
|
||
| Assets | ||
| Securities available for sale | 307,879 | 434,841 |
|
Quoted Prices in Active Markets for Identical Assets (Level 1)
|
||
| Assets | ||
| State tax credits held for sale | 0 | 0 |
|
Significant Other Observable Inputs (Level 2)
|
||
| Assets | ||
| State tax credits held for sale | 0 | 0 |
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Significant Unobservable Inputs (Level 3)
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| Assets | ||
| State tax credits held for sale | 40,798 | 43,802 |
|
Significant Unobservable Inputs (Level 3) | Auction Rate Securities
|
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| Liabilities | ||
| Number of securities | 3 | |
|
Total Fair Value
|
||
| Assets | ||
| State tax credits held for sale | 40,798 | 43,802 |
|
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
|
||
| Assets | ||
| Securities available for sale | 0 | |
| State tax credits held for sale | 0 | |
| Derivative financial instruments | 0 | |
| Total assets | 0 | |
| Liabilities | ||
| Derivative financial instruments | 0 | |
| Total liabilities | 0 | |
|
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of U.S. Government sponsored enterprises
|
||
| Assets | ||
| Securities available for sale | 0 | |
|
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of states and political subdivisions
|
||
| Assets | ||
| Securities available for sale | 0 | |
|
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential mortgage-backed securities
|
||
| Assets | ||
| Securities available for sale | 0 | |
|
Recurring basis | Significant Other Observable Inputs (Level 2)
|
||
| Assets | ||
| Securities available for sale | 450,004 | |
| State tax credits held for sale | 0 | |
| Derivative financial instruments | 1,128 | |
| Total assets | 451,132 | |
| Liabilities | ||
| Derivative financial instruments | 1,114 | |
| Total liabilities | 1,114 | |
|
Recurring basis | Significant Other Observable Inputs (Level 2) | Obligations of U.S. Government sponsored enterprises
|
||
| Assets | ||
| Securities available for sale | 93,974 | |
|
Recurring basis | Significant Other Observable Inputs (Level 2) | Obligations of states and political subdivisions
|
||
| Assets | ||
| Securities available for sale | 48,151 | |
|
Recurring basis | Significant Other Observable Inputs (Level 2) | Residential mortgage-backed securities
|
||
| Assets | ||
| Securities available for sale | 307,879 | |
|
Recurring basis | Significant Unobservable Inputs (Level 3)
|
||
| Assets | ||
| Securities available for sale | 3,042 | |
| State tax credits held for sale | 20,139 | |
| Derivative financial instruments | 0 | |
| Total assets | 23,181 | |
| Liabilities | ||
| Derivative financial instruments | 0 | |
| Total liabilities | 0 | |
|
Recurring basis | Significant Unobservable Inputs (Level 3) | Obligations of U.S. Government sponsored enterprises
|
||
| Assets | ||
| Securities available for sale | 0 | |
|
Recurring basis | Significant Unobservable Inputs (Level 3) | Obligations of states and political subdivisions
|
||
| Assets | ||
| Securities available for sale | 3,042 | |
|
Recurring basis | Significant Unobservable Inputs (Level 3) | Residential mortgage-backed securities
|
||
| Assets | ||
| Securities available for sale | 0 | |
|
Recurring basis | Total Fair Value
|
||
| Assets | ||
| Securities available for sale | 453,046 | |
| State tax credits held for sale | 20,139 | |
| Derivative financial instruments | 1,128 | |
| Total assets | 474,313 | |
| Liabilities | ||
| Derivative financial instruments | 1,114 | |
| Total liabilities | 1,114 | |
|
Recurring basis | Total Fair Value | Obligations of U.S. Government sponsored enterprises
|
||
| Assets | ||
| Securities available for sale | 93,974 | |
|
Recurring basis | Total Fair Value | Obligations of states and political subdivisions
|
||
| Assets | ||
| Securities available for sale | 51,193 | |
|
Recurring basis | Total Fair Value | Residential mortgage-backed securities
|
||
| Assets | ||
| Securities available for sale | 307,879 | |
|
Portion at Fair Value, Fair Value Disclosure | Recurring basis | Total Fair Value
|
||
| Assets | ||
| State tax credits held for sale | 20,100 | |
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Portion at Other than Fair Value, Fair Value Disclosure
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| Assets | ||
| State tax credits held for sale | $ 35,700 | |
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LIBOR Swap Curve
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| Liabilities | ||
| Discount rate, basis point spread | 205 |