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Fair Value of Assets and Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2018
Fair Value Disclosures [Abstract] |
Fair value measurement of assets and liabilities measured at fair value on a recurring basis | The following tables disclose the fair value measurement of assets and liabilities measured at fair value on a recurring basis:
|  |  | Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands) | Fair Value December 31, 2018 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Debt securities, available-for-sale |  |  |  |  |  |  |
U.S. government and federal agency | $ | 23,649 |  |  | — |  |  | 23,649 |  |  | — |
U.S. government sponsored enterprises | 120,208 |  |  | — |  |  | 120,208 |  |  | — |
State and local governments | 852,250 |  |  | — |  |  | 852,250 |  |  | — |
Corporate bonds | 290,817 |  |  | — |  |  | 290,817 |  |  | — |
Residential mortgage-backed securities | 792,915 |  |  | — |  |  | 792,915 |  |  | — |
Commercial mortgage-backed securities | 491,824 |  |  | — |  |  | 491,824 |  |  | — |
Loans held for sale, at fair value | 33,156 |  |  | — |  |  | 33,156 |  |  | — |
Total assets measured at fair value on a recurring basis | $ | 2,604,819 |  |  | — |  |  | 2,604,819 |  |  | — |
Interest rate swaps | $ | 3,769 |  |  | — |  |  | 3,769 |  |  | — |
Total liabilities measured at fair value on a recurring basis | $ | 3,769 |  |  | — |  |  | 3,769 |  |  | — |
Note 20. Fair Value of Assets and Liabilities (continued)
|  |  | Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands) | Fair Value December 31, 2017 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Debt securities, available-for-sale |  |  |  |  |  |  |
U.S. government and federal agency | $ | 31,127 |  |  | — |  |  | 31,127 |  |  | — |
U.S. government sponsored enterprises | 19,091 |  |  | — |  |  | 19,091 |  |  | — |
State and local governments | 629,501 |  |  | — |  |  | 629,501 |  |  | — |
Corporate bonds | 216,762 |  |  | — |  |  | 216,762 |  |  | — |
Residential mortgage-backed securities | 779,283 |  |  | — |  |  | 779,283 |  |  | — |
Commercial mortgage-backed securities | 102,479 |  |  | — |  |  | 102,479 |  |  | — |
Loans held for sale, at fair value | 38,833 |  |  | — |  |  | 38,833 |  |  | — |
Total assets measured at fair value on a recurring basis | $ | 1,817,076 |  |  | — |  |  | 1,817,076 |  |  | — |
Interest rate swaps | $ | 9,389 |  |  | — |  |  | 9,389 |  |  | — |
Total liabilities measured at fair value on a recurring basis | $ | 9,389 |  |  | — |  |  | 9,389 |  |  | — |
Fair value measurement of assets measured at fair value on a non-recurring basis | The following tables disclose the fair value measurement of assets with a recorded change during the period resulting from re-measuring the assets at fair value on a non-recurring basis:
|  |  | Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands) | Fair Value December 31, 2018 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Other real estate owned | $ | 1,011 |  |  | — |  |  | — |  |  | 1,011 |
Collateral-dependent impaired loans, net of ALLL | 6,985 |  |  | — |  |  | — |  |  | 6,985 |
Total assets measured at fair value on a non-recurring basis | $ | 7,996 |  |  | — |  |  | — |  |  | 7,996 |
|  |  | Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands) | Fair Value December 31, 2017 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Other real estate owned | $ | 2,296 |  |  | — |  |  | — |  |  | 2,296 |
Collateral-dependent impaired loans, net of ALLL | 6,339 |  |  | — |  |  | — |  |  | 6,339 |
Total assets measured at fair value on a non-recurring basis | $ | 8,635 |  |  | — |  |  | — |  |  | 8,635 |
Quantitative information about assets measured at fair value on a non-recurring basis for which Level 3 inputs were used | The following tables present additional quantitative information about assets measured at fair value on a non-recurring basis and for which the Company has utilized Level 3 inputs to determine fair value:
| Fair Value |  | Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands) | December 31, 2018 |  | Valuation Technique |  | Unobservable Input |  | Range (Weighted- Average) 1
Other real estate owned | $ | 1,011 |  |  | Sales comparison approach |  | Selling costs |  | 8.0% - 15.0% (9.2%)
Collateral-dependent impaired loans, net of ALLL | $ | 2,384 |  |  | Sales comparison approach |  | Selling costs |  | 8.0% - 20.0% (9.9%)
| 4,601 |  |  | Combined approach |  | Selling costs |  | 10.0% - 10.0% (10.0%)
| $ | 6,985 |  |  |  |  |  |  |
Note 20. Fair Value of Assets and Liabilities (continued)
| Fair Value |  | Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands) | December 31, 2017 |  | Valuation Technique |  | Unobservable Input |  | Range (Weighted- Average) 1
Other real estate owned | $ | 2,296 |  |  | Sales comparison approach |  | Selling costs |  | 0.0% - 10.0% (6.0%)
Collateral-dependent impaired loans, net of ALLL | $ | 238 |  |  | Cost approach |  | Selling costs |  | 10.0% - 20.0% (10.6%)
| 2,541 |  |  | Sales comparison approach |  | Selling costs |  | 8.0% - 10.0% (9.4%)
| 3,560 |  |  | Combined approach |  | Selling costs |  | 10.0% - 10.0% (10.0%)
| $ | 6,339 |  |  |  |  |  |  |
______________________________ 1 The range for selling cost inputs represents reductions to the fair value of the assets.
Carrying amounts and estimated fair values of financial instruments | The following tables present the carrying amounts, estimated fair values and the level within the fair value hierarchy of the Company’s financial instruments not carried at fair value. Receivables and payables due in one year or less, equity securities without readily determinable fair values and deposits with no defined or contractual maturities are excluded.
|  |  | Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands) | Carrying Amount December 31, 2018 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Financial assets |  |  |  |  |  |  |
Cash and cash equivalents | $ | 203,790 |  |  | 203,790 |  |  | — |  |  | — |
Debt securities, held-to-maturity | 297,915 |  |  | — |  |  | 288,256 |  |  | — |
Loans receivable, net of ALLL | 8,156,310 |  |  | — |  |  | — |  |  | 8,079,112 |
Total financial assets | $ | 8,658,015 |  |  | 203,790 |  |  | 288,256 |  |  | 8,079,112 |
Financial liabilities |  |  |  |  |  |  |
Term deposits | $ | 1,070,208 |  |  | — |  |  | 1,069,777 |  |  | — |
FHLB advances | 440,175 |  |  | — |  |  | 439,615 |  |  | — |
Repurchase agreements and other borrowed funds | 410,859 |  |  | — |  |  | 410,859 |  |  | — |
Subordinated debentures | 134,051 |  |  | — |  |  | 120,302 |  |  | — |
Total financial liabilities | $ | 2,055,293 |  |  | — |  |  | 2,040,553 |  |  | — |
Note 20. Fair Value of Assets and Liabilities (continued)
|  |  | Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands) | Carrying Amount December 31, 2017 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Financial assets |  |  |  |  |  |  |
Cash and cash equivalents | $ | 200,004 |  |  | 200,004 |  |  | — |  |  | — |
Debt securities, held-to-maturity | 648,313 |  |  | — |  |  | 660,086 |  |  | — |
Loans receivable, net of ALLL | 6,448,256 |  |  | — |  |  | 6,219,515 |  |  | 114,771 |
Total financial assets | $ | 7,296,573 |  |  | 200,004 |  |  | 6,879,601 |  |  | 114,771 |
Financial liabilities |  |  |  |  |  |  |
Term deposits | $ | 977,302 |  |  | — |  |  | 978,803 |  |  | — |
FHLB advances | 353,995 |  |  | — |  |  | 352,886 |  |  | — |
Repurchase agreements and other borrowed funds | 370,797 |  |  | — |  |  | 370,797 |  |  | — |
Subordinated debentures | 126,135 |  |  | — |  |  | 98,023 |  |  | — |
Total financial liabilities | $ | 1,828,229 |  |  | — |  |  | 1,800,509 |  |  | — |

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 + Details
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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13467-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 + Details
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