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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Deferred tax assets: |  |
Allowance for loan losses | $ 19,773 | $ 19,023
Accumulated other comprehensive loss – Pension Plan | 8,266 | 8,005
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross | 157 | 0
Deferred compensation | 3,908 | 3,820
OREO valuation adjustments | 2,418 | 3,984
Deferred Tax Assets, Deferred Income | 1,204 | 933
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other | 1,031 | 0
Other | 4,171 | 4,338
Total deferred tax assets | 40,928 | 40,103
Deferred tax liabilities: |  |
Accumulated other comprehensive income – Unrealized gains on securities | 0 | 677
Deferred investment income | 10,199 | 10,199
Pension plan | 26,205 | 25,949
Mortgage servicing rights | 3,153 | 3,015
Deferred Tax Liabilities, Partnership Adjustments | 560 | 865
Other | 872 | 804
Total deferred tax liabilities | 40,989 | 41,509
Net deferred tax asset (liability) | $ (61) | $ (1,406)

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