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Fair Value Information (Tables) | 12 Months Ended
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Dec. 31, 2012
Assets and Liabilities Measured at Fair Value on Recurring Basis | The tables below presents the balances of assets and liabilities measured at fair value on a recurring basis as of December 31, 2012 and 2011. Assets & Liabilities Measured at Fair Value on a Recurring Basis
|  | Carrying Value at |  |  | Quoted Prices in Active Markets for Identical Assets |  |  | Significant Other Observable Inputs |  |  | Significant Unobservable Inputs |
|  | December 31, 2012 |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |
|  | (Dollars in thousands) |
Description of Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government agency |  | $ | 359,300 |  |  | $ | — |  |  | $ | 359,300 |  |  | $ | — |
Residential mortgage-backed securities |  |  | 887,598 |  |  |  | — |  |  |  | 887,598 |  |  |  | — |
CMO’s / REMIC’s—residential |  |  | 571,960 |  |  |  | — |  |  |  | 571,960 |  |  |  | — |
Municipal bonds |  |  | 625,429 |  |  |  | — |  |  |  | 625,429 |  |  |  | — |
Other securities |  |  | 5,100 |  |  |  | — |  |  |  | 5,100 |  |  |  | — |
Investment securities-AFS |  |  | 2,449,387 |  |  |  | — |  |  |  | 2,449,387 |  |  |  | — |
Interest rate swaps |  |  | 23,966 |  |  |  | — |  |  |  | 23,966 |  |  |  | — |
Total assets |  | $ | 2,473,353 |  |  | $ | — |  |  | $ | 2,473,353 |  |  | $ | — |
Description of Liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps |  | $ | 23,966 |  |  | $ | — |  |  | $ | 23,966 |  |  | $ | — |
|  | Carrying Value at December 31, 2011 |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |
|  | (Dollars in thousands) |
Description of Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government agency |  | $ | 46,507 |  |  |  | — |  |  | $ | 46,507 |  |  | $ | — |
Residential mortgage-backed securities |  |  | 888,000 |  |  |  | — |  |  |  | 888,000 |  |  |  | — |
CMO’s / REMIC’s—residential |  |  | 604,508 |  |  |  | — |  |  |  | 604,508 |  |  |  | — |
Municipal bonds |  |  | 652,037 |  |  |  | — |  |  |  | 652,037 |  |  |  | — |
Other securities |  |  | 10,474 |  |  |  | — |  |  |  | 10,474 |  |  |  | — |
Investment securities-AFS |  |  | 2,201,526 |  |  |  | — |  |  |  | 2,201,526 |  |  |  | — |
Interest rate swaps |  |  | 20,497 |  |  |  | — |  |  |  | 20,497 |  |  |  | — |
Total assets |  | $ | 2,222,023 |  |  | $ | — |  |  | $ | 2,222,023 |  |  | $ | — |
Description of Liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps |  | $ | 20,497 |  |  | $ | — |  |  | $ | 20,497 |  |  | $ | — |
Assets and Liabilities Measured at Fair Value on Non-Recurring Basis | Assets & Liabilities Measured at Fair Value on a Non-Recurring Basis
|  | Carrying Value at December 31, 2012 |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |  |  | For the Year Ended December 31, 2012 Total Losses |
|  | (Dollars in thousands) |
Description of Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment securities—HTM |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Covered loans held-for-sale |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Impaired loans—non-covered |  |  | 12,460 |  |  |  | — |  |  |  | — |  |  |  | 12,460 |  |  |  | (3,930 | )
OREO—non-covered |  |  | 3,008 |  |  |  | — |  |  |  | — |  |  |  | 3,008 |  |  |  | (336 | )
OREO—covered |  |  | 1,067 |  |  |  | — |  |  |  | — |  |  |  | 1,067 |  |  |  | (467 | )
|  | Carrying Value at December 31, 2011 |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |  |  | For the Year Ended December 31, 2011 Total Losses |
|  | (Dollars in thousands) |
Description of Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment securities—HTM |  | $ | 2,383 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,383 |  |  | $ | (656 | )
Covered loans held-for-sale |  |  | 1,404 |  |  |  | — |  |  |  | — |  |  |  | 1,404 |  |  |  | (250 | )
Impaired loans—non-covered |  |  | 30,014 |  |  |  | — |  |  |  | — |  |  |  | 30,014 |  |  |  | (6,707 | )
OREO—non-covered |  |  | 4,866 |  |  |  | — |  |  |  | — |  |  |  | 4,866 |  |  |  | (523 | )
OREO—covered |  |  | 2,541 |  |  |  | — |  |  |  | — |  |  |  | 2,541 |  |  |  | (2,192 | )
Estimated Fair Value of Financial Instruments | The use of different market assumptions and/or estimation methodologies may have a material effect on the estimated fair value amounts.
|  | December 31, 2012 |
|  | Carrying |  |  | Estimated Fair Value |
|  | Amount |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
|  | (Dollars in thousands) |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total cash and cash equivalents |  | $ | 98,431 |  |  | $ | 98,431 |  |  | $ | — |  |  | $ | — |  |  | $ | 98,431 |
Interest-earning balances due from depository institutions |  |  | 70,000 |  |  |  | — |  |  |  | 70,000 |  |  |  | — |  |  |  | 70,000 |
FHLB stock |  |  | 56,651 |  |  |  | — |  |  |  | 56,651 |  |  |  | — |  |  |  | 56,651 |
Investment securities available-for-sale |  |  | 2,449,387 |  |  |  | — |  |  |  | 2,449,387 |  |  |  | — |  |  |  | 2,449,387 |
Investment securities held-to-maturity |  |  | 2,050 |  |  |  | — |  |  |  | — |  |  |  | 2,515 |  |  |  | 2,515 |
Non-covered loans held-for-sale |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Covered loans held-for-sale |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total loans, net of allowance for credit losses |  |  | 3,355,087 |  |  |  | — |  |  |  | — |  |  |  | 3,503,332 |  |  |  | 3,503,332 |
Accrued interest receivable |  |  | 22,355 |  |  |  | — |  |  |  | 22,355 |  |  |  | — |  |  |  | 22,355 |
Swaps |  |  | 23,966 |  |  |  | — |  |  |  | 23,966 |  |  |  | — |  |  |  | 23,966 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noninterest-bearing |  | $ | 2,420,993 |  |  | $ | 2,420,993 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,420,993 |
Interest-bearing |  |  | 2,352,994 |  |  |  | — |  |  |  | 2,354,126 |  |  |  | — |  |  |  | 2,354,126 |
Borrowings |  |  | 698,178 |  |  |  | — |  |  |  | 727,512 |  |  |  | — |  |  |  | 727,512 |
Junior subordinated debentures |  |  | 67,012 |  |  |  | — |  |  |  | 67,415 |  |  |  | — |  |  |  | 67,415 |
Accrued interest payable |  |  | 1,493 |  |  |  | — |  |  |  | 1,493 |  |  |  | — |  |  |  | 1,493 |
Swaps |  |  | 23,966 |  |  |  | — |  |  |  | 23,966 |  |  |  | — |  |  |  | 23,966 |
|  | December 31, 2011 |
|  | Carrying |  |  | Estimated Fair Value |
|  | Amount |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
|  | (Dollars in thousands) |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total cash and cash equivalents |  | $ | 345,343 |  |  | $ | 345,343 |  |  | $ | — |  |  | $ | — |  |  | $ | 345,343 |
Interest-earning balances due from depository institutions |  |  | 60,000 |  |  |  | — |  |  |  | 60,000 |  |  |  | — |  |  |  | 60,000 |
FHLB stock |  |  | 72,689 |  |  |  | — |  |  |  | 72,689 |  |  |  | — |  |  |  | 72,689 |
Investment securities available-for-sale |  |  | 2,201,526 |  |  |  | — |  |  |  | 2,201,526 |  |  |  |  |  |  |  | 2,201,526 |
Investment securities held-to-maturity |  |  | 2,383 |  |  |  | — |  |  |  | — |  |  |  | 2,383 |  |  |  | 2,383 |
Non-covered loans held-for-sale |  |  | 348 |  |  |  | — |  |  |  | — |  |  |  | 348 |  |  |  | 348 |
Covered loans held-for-sale |  |  | 5,664 |  |  |  | — |  |  |  | — |  |  |  | 5,664 |  |  |  | 5,664 |
Total loans, net of allowance for credit losses |  |  | 3,382,632 |  |  |  | — |  |  |  | — |  |  |  | 3,534,960 |  |  |  | 3,534,960 |
Accrued interest receivable |  |  | 23,512 |  |  |  | — |  |  |  | 23,512 |  |  |  | — |  |  |  | 23,512 |
Swaps |  |  | 20,497 |  |  |  | — |  |  |  | 20,497 |  |  |  | — |  |  |  | 20,497 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noninterest-bearing |  | $ | 2,027,876 |  |  | $ | 2,027,876 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,027,876 |
Interest-bearing |  |  | 2,576,672 |  |  |  | — |  |  |  | 2,577,825 |  |  |  | — |  |  |  | 2,577,825 |
Borrowings |  |  | 958,032 |  |  |  | — |  |  |  | 1,012,211 |  |  |  | — |  |  |  | 1,012,211 |
Junior subordinated debentures |  |  | 115,055 |  |  |  | — |  |  |  | 115,854 |  |  |  | — |  |  |  | 115,854 |
Accrued interest payable |  |  | 3,526 |  |  |  | — |  |  |  | 3,526 |  |  |  | — |  |  |  | 3,526 |
Swaps |  |  | 20,497 |  |  |  | — |  |  |  | 20,497 |  |  |  | — |  |  |  | 20,497 |

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- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 33 -Subparagraph a, b -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 820 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19296-110258 + Details
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- Definition Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 14 -Subparagraph a -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 Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph c(2), d, e, 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 FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 15 -Subparagraph b-d -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 Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13467-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 19 -Subparagraph a, b, c(1), d(1) -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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph a, c(1), c(2), c(3), d -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 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -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. Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 + Details
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