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Fair Value (Tables) | 3 Months Ended
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Mar. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract] |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis 1 [Table Text Block] |
| March 31, 2018
| Fair Value Measurements
| Level 1 |  | Level 2 |  | Level 3 |  | Total
| (In thousands)
Recurring fair value measurements: |  |  |  |  |  |  |  |  |  |  |
Investment securities available-for-sale | $ | - |  | $ | 801,641 |  | $ | - |  | $ | 801,641
Trading securities |  | - |  |  | 293 |  |  | - |  |  | 293
Money market investments |  | 7,428 |  |  | - |  |  | - |  |  | 7,428
Derivative assets |  | - |  |  | 898 |  |  | - |  |  | 898
Servicing assets |  | - |  |  | - |  |  | 10,533 |  |  | 10,533
Derivative liabilities |  | - |  |  | (752) |  |  | - |  |  | (752)
| $ | 7,428 |  | $ | 802,080 |  | $ | 10,533 |  | $ | 820,041
Non-recurring fair value measurements: |  |  |  |  |  |  |  |  |  |  |
Impaired commercial loans | $ | - |  | $ | - |  | $ | 68,580 |  | $ | 68,580
Foreclosed real estate |  | - |  |  | - |  |  | 40,314 |  |  | 40,314
Other repossessed assets |  | - |  |  | - |  |  | 5,082 |  |  | 5,082
| $ | - |  | $ | - |  | $ | 113,976 |  | $ | 113,976
| December 31, 2017
| Fair Value Measurements
| Level 1 |  | Level 2 |  | Level 3 |  | Total
| (In thousands)
Recurring fair value measurements: |  |  |  |  |  |  |  |  |  |  |
Investment securities available-for-sale | $ | - |  | $ | 645,797 |  | $ | - |  | $ | 645,797
Trading securities |  | - |  |  | 191 |  |  | - |  |  | 191
Money market investments |  | 7,021 |  |  | - |  |  | - |  |  | 7,021
Derivative assets |  | - |  |  | 771 |  |  | - |  |  | 771
Servicing assets |  | - |  |  | - |  |  | 9,821 |  |  | 9,821
Derivative liabilities |  | - |  |  | (1,281) |  |  | - |  |  | (1,281)
| $ | 7,021 |  | $ | 645,478 |  | $ | 9,821 |  | $ | 662,320
Non-recurring fair value measurements: |  |  |  |  |  |  |  |  |  |  |
Impaired commercial loans | $ | - |  | $ | - |  | $ | 72,285 |  | $ | 72,285
Foreclosed real estate |  | - |  |  | - |  |  | 44,174 |  |  | 44,174
Other repossessed assets |  | - |  |  | - |  |  | 3,548 |  |  | 3,548
| $ | - |  | $ | - |  | $ | 120,007 |  | $ | 120,007
| Servicing assets
| Quarter Ended March 31,
Level 3 Instruments Only | 2018 |  | 2017
| (In thousands)
Balance at beginning of period | $ | 9,821 |  | $ | 9,858
New instruments acquired |  | 352 |  |  | 534
Principal repayments |  | (199) |  |  | (162)
Changes in fair value of servicing assets |  | 559 |  |  | (542)
Balance at end of period | $ | 10,533 |  | $ | 9,688
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table Text Block] |
|  | March 31, 2018
|  | Fair Value |  | Valuation Technique |  | Unobservable Input |  | Range
|  | (In thousands) |  |  |  |  |  |
Servicing assets |  | $ | 10,533 |  | Cash flow valuation |  | Constant prepayment rate |  | 4.08% -8.50%
|  |  |  |  |  |  | Discount rate |  | 10.00% - 12.00%
Collateral dependent impaired loans |  | $ | 35,239 |  | Fair value of property or collateral |  | Appraised value less disposition costs |  | 19.20% - 35.20%
Other non-collateral dependent impaired loans |  | $ | 33,341 |  | Cash flow valuation |  | Discount rate |  | 4.15% - 10.50%
Foreclosed real estate |  | $ | 40,314 |  | Fair value of property or collateral |  | Appraised value less disposition costs |  | 19.20% - 35.20%
Other repossessed assets |  | $ | 5,082 |  | Fair value of property or collateral |  | Estimated net realizable value less disposition costs |  | 29.00% - 71.00%
Fair Value By Balance Sheet Grouping [Text Block] |
| March 31, |  | December 31,
| 2018 |  | 2017
| Fair |  | Carrying |  | Fair |  | Carrying
| Value |  | Value |  | Value |  | Value
| (In thousands)
Level 1 |  |  |  |  |  |  |  |  |  |  |
Financial Assets: |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 362,358 |  | $ | 362,358 |  | $ | 485,203 |  | $ | 485,203
Restricted cash | $ | 3,030 |  | $ | 3,030 |  | $ | 3,030 |  | $ | 3,030
Level 2 |  |  |  |  |  |  |  |  |  |  |
Financial Assets: |  |  |  |  |  |  |  |  |  |  |
Trading securities | $ | 293 |  | $ | 293 |  | $ | 191 |  | $ | 191
Investment securities available-for-sale | $ | 801,641 |  | $ | 801,641 |  | $ | 645,797 |  | $ | 645,797
Investment securities held-to-maturity | $ | 467,980 |  | $ | 485,143 |  | $ | 497,681 |  | $ | 506,064
Federal Home Loan Bank (FHLB) stock | $ | 11,499 |  | $ | 11,499 |  | $ | 13,995 |  | $ | 13,995
Other investments | $ | 3 |  | $ | 3 |  | $ | 3 |  | $ | 3
Derivative assets | $ | 898 |  | $ | 898 |  | $ | 771 |  | $ | 771
Financial Liabilities: |  |  |  |  |  |  |  |  |  |  |
Derivative liabilities | $ | 752 |  | $ | 752 |  | $ | 1,281 |  | $ | 1,281
Level 3 |  |  |  |  |  |  |  |  |  |  |
Financial Assets: |  |  |  |  |  |  |  |  |  |  |
Total loans (including loans held-for-sale) | $ | 3,735,449 |  | $ | 4,133,429 |  | $ | 3,842,907 |  | $ | 4,056,329
Accrued interest receivable | $ | 35,141 |  | $ | 35,141 |  | $ | 49,969 |  | $ | 49,969
Servicing assets | $ | 10,533 |  | $ | 10,533 |  | $ | 9,821 |  | $ | 9,821
Accounts receivable and other assets | $ | 35,515 |  | $ | 35,515 |  | $ | 41,898 |  | $ | 41,898
Financial Liabilities: |  |  |  |  |  |  |  |  |  |  |
Deposits | $ | 4,767,479 |  | $ | 4,833,428 |  | $ | 4,782,197 |  | $ | 4,799,482
Securities sold under agreements to repurchase | $ | 271,811 |  | $ | 273,926 |  | $ | 191,104 |  | $ | 192,869
Advances from FHLB | $ | 43,880 |  | $ | 43,934 |  | $ | 99,509 |  | $ | 99,643
Other borrowings | $ | 394 |  | $ | 394 |  | $ | 153 |  | $ | 153
Subordinated capital notes | $ | 34,158 |  | $ | 36,083 |  | $ | 33,080 |  | $ | 36,083
Accrued expenses and other liabilities | $ | 85,886 |  | $ | 85,886 |  | $ | 86,791 |  | $ | 86,791

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- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 4: 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=66048111&loc=d3e19207-110258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI http://asc.fasb.org/extlink&oid=66048111&loc=SL7498348-110258 Reference 6: 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=66048111&loc=d3e19190-110258 + Details
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- Definition Tabular disclosure of the inputs and valuation techniques used to measure fair value, and a discussion of changes in valuation techniques and related inputs, if any, applied during the period to each separate class of assets, liabilities, and financial instruments classified in shareholders' equity that are measured on a recurring and/or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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