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Fair Values - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Financial assets: |  |
Cash and money market instruments | $ 146,466 | $ 149,459
Investment securities | 1,514,811 | 1,587,694
Mortgage loans held for sale | 10,413 | 7,306
Impaired loans carried at fair value | 5,983 | 9,496
Derivative Asset | 124 | 165
Other loans | 5,161,919 | 4,997,318
Loans receivable, net | 5,178,439 | 5,014,285
Financial liabilities: |  |
Non-interest bearing checking accounts | 1,523,417 | 1,404,032
Interest bearing transaction accounts | 1,174,448 | 1,107,200
Savings accounts | 1,704,920 | 1,544,708
Time Deposits, Fair Value | 1,122,598 | 1,295,329
Other | 1,301 | 1,290
Total deposits | 5,526,684 | 5,352,559
Short-term borrowings | 394,795 | 394,242
Long-term debt | 712,958 | 771,420
Subordinated debentures/notes | 40,903 | 41,596
Fair value swap |  |
Derivative financial instruments: |  |
Swaps, fair value | 226 | 226
Level 1 |  |
Financial assets: |  |
Cash and money market instruments | 146,466 | 149,459
Investment securities | 2,644 | 1,941
Derivative Asset | 0 | 0
Loans receivable, net | 0 | 0
Financial liabilities: |  |
Non-interest bearing checking accounts | 1,523,417 | 1,404,032
Interest bearing transaction accounts | 1,174,448 | 1,107,200
Savings accounts | 1,704,920 | 1,544,708
Other | 1,301 | 1,290
Total deposits | 4,404,086 | 4,057,230
Level 2 |  |
Financial assets: |  |
Investment securities | 1,511,377 | 1,584,984
Mortgage loans held for sale | 10,413 | 7,306
Derivative Asset | 124 | 165
Loans receivable, net | 10,537 | 7,471
Financial liabilities: |  |
Time Deposits, Fair Value | 1,122,598 | 1,295,329
Total deposits | 1,122,598 | 1,295,329
Short-term borrowings | 394,795 | 394,242
Long-term debt | 712,958 | 771,420
Subordinated debentures/notes | 40,903 | 41,596
Level 3 |  |
Financial assets: |  |
Investment securities | 790 | 769
Impaired loans carried at fair value | 5,983 | 9,496
Derivative Asset | 0 | 0
Other loans | 5,161,919 | 4,997,318
Loans receivable, net | 5,167,902 | 5,006,814
Financial liabilities: |  |
Total deposits | 0 | 0
Level 3 | Fair value swap |  |
Derivative financial instruments: |  |
Swaps, fair value | 226 | 226
Available-for-sale Securities [Member] |  |
Financial assets: |  |
Accrued interest receivable | 3,849 | 4,436
Available-for-sale Securities [Member] | Level 2 |  |
Financial assets: |  |
Accrued interest receivable | 3,849 | 4,436
Loans |  |
Financial assets: |  |
Accrued interest receivable | 14,973 | 14,239
Loans | Level 3 |  |
Financial assets: |  |
Accrued interest receivable | 14,973 | 14,239
Deposits |  |
Financial liabilities: |  |
Accrued interest payable | 900 | 987
Deposits | Level 1 |  |
Financial liabilities: |  |
Accrued interest payable | 82 | 66
Deposits | Level 2 |  |
Financial liabilities: |  |
Accrued interest payable | 818 | 921
Borrowings |  |
Financial liabilities: |  |
Accrued interest payable | 1,251 | 1,351
Borrowings | Level 1 |  |
Financial liabilities: |  |
Accrued interest payable | 1 | 4
Borrowings | Level 2 |  |
Financial liabilities: |  |
Accrued interest payable | 1,250 | 1,347
Reported Value Measurement [Member] |  |
Financial assets: |  |
Cash and money market instruments | 146,466 | 149,459
Investment securities | 1,517,972 | 1,585,568
Mortgage loans held for sale | 10,413 | 7,306
Impaired loans carried at fair value | 5,983 | 9,496
Derivative Asset | 124 | 165
Other loans | 5,204,713 | 4,994,624
Loans receivable, net | 5,221,233 | 5,011,591
Financial liabilities: |  |
Non-interest bearing checking accounts | 1,523,417 | 1,404,032
Interest bearing transaction accounts | 1,174,448 | 1,107,200
Savings accounts | 1,704,920 | 1,544,708
Time Deposits, Fair Value | 1,117,870 | 1,290,412
Other | 1,301 | 1,290
Total deposits | 5,521,956 | 5,347,642
Short-term borrowings | 394,795 | 394,242
Long-term debt | 694,281 | 738,105
Subordinated debentures/notes | 45,000 | 45,000
Reported Value Measurement [Member] | Fair value swap |  |
Derivative financial instruments: |  |
Swaps, fair value | 226 | 226
Reported Value Measurement [Member] | Available-for-sale Securities [Member] |  |
Financial assets: |  |
Accrued interest receivable | 3,849 | 4,436
Reported Value Measurement [Member] | Loans |  |
Financial assets: |  |
Accrued interest receivable | 14,973 | 14,239
Reported Value Measurement [Member] | Deposits |  |
Financial liabilities: |  |
Accrued interest payable | 900 | 987
Reported Value Measurement [Member] | Borrowings |  |
Financial liabilities: |  |
Accrued interest payable | $ 1,251 | $ 1,351

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 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=73719730&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13495-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313 + Details
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- Definition Value of the investment at close of period. For schedules of investments that are categorized, the value would be aggregated by category. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.Column C.3,4) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-12C.Column C.7) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14.Column E.2,3) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 5 -Subparagraph (SX 210.12-13.Column C.6) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611282-123010 + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Glossary Loan -URI http://asc.fasb.org/extlink&oid=6517073 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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