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Premises and Equipment, Net | 12 Months Ended
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Dec. 31, 2017
Premises and Equipment, Net [Abstract] |
Premises and Equipment, Net |
6. | Premises and Equipment, Net
A summary of premises and equipment follows:
|  | December 31, |
(In thousands) |  | 2017 |  |  | 2016 |
Land, buildings and improvements |  | $ | 121,771 |  |  | $ | 121,037 |
Equipment |  |  | 57,080 |  |  |  | 56,243 |
Premises and equipment before accumulated depreciation |  | $ | 178,851 |  |  | $ | 177,280 |
Accumulated depreciation |  |  | 97,546 |  |  |  | 93,093 |
Total premises and equipment |  | $ | 81,305 |  |  | $ | 84,187 |
Buildings and improvements are depreciated based on useful lives of 15 to 40 years. Equipment is depreciated based on useful lives of three to ten years. Rental expense included in occupancy expense amounted to $8.5 million in 2017, $7.8 million in December 31, 2016 and $7.9 million in December 31, 2015. The future minimum rental payments related to non-cancelable operating leases with original terms of one year or more are as follows:
(In thousands) |  | December 31, 2017 |
2018 |  | $ | 7,910 |
2019 |  |  | 7,227 |
2020 |  |  | 6,547 |
2021 |  |  | 5,352 |
2022 |  |  | 4,646 |
Thereafter |  |  | 16,660 |
Total |  | $ | 48,342 |

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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