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Premises and Equipment | 12 Months Ended
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Dec. 31, 2018
Property, Plant and Equipment [Abstract] |
Premises and Equipment | PREMISES AND EQUIPMENT The following table summarizes the Corporation's premises and equipment as of December 31, 2018 and 2017:
| 2018 |  | 2017
Cost at December 31: |  |  |
Land | $ | 21,762 |  |  | $ | 22,042 |
Buildings and Leasehold Improvements | 125,366 |  |  | 124,441 |
Equipment | 86,498 |  |  | 82,344 |
Total Cost | 233,626 |  |  | 228,827 |
Accumulated Depreciation and Amortization | (140,206 | ) |  | (132,975 | )
Net | $ | 93,420 |  |  | $ | 95,852 |
The IAB acquisition on July 14, 2017 and the Arlington Bank acquisition on May 19, 2017 resulted in additions to premises and equipment of $10,107,000 and $1,986,000, respectively. Details regarding the acquisitions are discussed in NOTE 2. ACQUISITIONS of these Notes to Consolidated Financial Statements. The Corporation is committed under various non-cancelable lease contracts for certain subsidiary office facilities and equipment. Total lease expense for 2018, 2017 and 2016 was $4,369,000, $4,072,000 and $4,586,000, respectively. The future minimum rental commitments required under the operating leases, which expire at various dates through the year 2035, are as follows for the years ending December 31:
| Future Minimum Rental Commitments
2019 | $ | 3,721 |
2020 | 3,584 |
2021 | 3,283 |
2022 | 3,150 |
2023 | 2,622 |
After 2023 | 12,495 |
Total Future Minimum Obligations | $ | 28,855 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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