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v3.19.3.a.u2

Premises, Equipment and Leases (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Premises and Equipment [Abstract] |  |  |
Premises and equipment before accumulated depreciation | $ 179,910 | $ 177,385 |
Accumulated depreciation | 104,279 | 98,415 |
Total premises and equipment | 75,631 | 78,970 |
Operating lease ROU assets | $ 34,800 |  |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | us-gaap:OtherAssets |  |
Net Lease Cost [Abstract] |  |  |
Operating lease cost | $ 7,239 |  |
Variable lease cost | 2,231 |  |
Short-term lease cost | 356 |  |
Sublease income | (448) |  |
Total operating lease cost | 9,378 |  |
Future Minimum Rental Commitments Related to Non-cancelable Operating Leases [Abstract] |  |  |
2020 | 7,435 |  |
2021 | 6,646 |  |
2022 | 5,870 |  |
2023 | 4,969 |  |
2024 | 4,365 |  |
Thereafter | 12,876 |  |
Total lease payments | 42,161 |  |
Less: interest | (4,838) |  |
Present value of lease liabilities | $ 37,323 |  |
Operating Lease, Liability, Statement of Financial Position [Extensible List] | us-gaap:OtherLiabilities |  |
Additional Information Related to Operating Leases [Abstract] |  |  |
Weighted average remaining lease term, in years | 7 years 8 months 8 days |  |
Weighted average discount rate | 3.00% |  |
Cash paid for amounts included in the measurement of lease liabilities [Abstract] |  |  |
Operating cash flows from operating leases | $ 6,211 |  |
ROU assets obtained in exchange for lease liabilities | 41,008 |  |
Rental expense | 8,000 | 8,600 | $ 8,500
Land, Buildings and Improvements [Member] |  |  |
Premises and Equipment [Abstract] |  |  |
Premises and equipment before accumulated depreciation | 121,479 | 121,808 |
Equipment [Member] |  |  |
Premises and Equipment [Abstract] |  |  |
Premises and equipment before accumulated depreciation | $ 58,431 | $ 55,577 |
Equipment [Member] | Minimum [Member] |  |  |
Premises and Equipment [Abstract] |  |  |
Property, plant and equipment, useful life | 3 years |  |
Equipment [Member] | Maximum [Member] |  |  |
Premises and Equipment [Abstract] |  |  |
Property, plant and equipment, useful life | 10 years |  |
Building and Improvements [Member] | Minimum [Member] |  |  |
Premises and Equipment [Abstract] |  |  |
Property, plant and equipment, useful life | 5 years |  |
Building and Improvements [Member] | Maximum [Member] |  |  |
Premises and Equipment [Abstract] |  |  |
Property, plant and equipment, useful life | 20 years |  |

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