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INCOME TAXES, Components of Net Deferred Tax Liability (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Components of net deferred tax liability [Abstract] |  |
Allowance for loan losses | $ 12,059 | $ 12,131
Employee benefits | 5,393 | 4,479
Operating lease liabilities | 9,801 | 0
Other, net | 837 | 541
Deferred tax asset | 28,090 | 17,151
Investment securities | 21,547 | 14,451
Goodwill and intangibles | 39,189 | 39,540
Operating lease right-of-use assets | 9,566 | 0
Loan origination costs | 7,639 | 6,851
Depreciation | 2,736 | 3,098
Mortgage servicing rights | 162 | 277
Pension | 13,769 | 11,078
Deferred tax liability | 94,608 | 75,295
Net deferred tax liability | $ (66,518) | $ (58,144)

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