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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Deferred tax assets: |  |
Allowance for loan losses | $ 20,814 | $ 19,438
Accumulated other comprehensive loss – pension plan | 3,015 | 14,611
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross | 16,057 | 0
Intangible assets | 673 | 697
Deferred compensation | 3,611 | 3,750
OREO devaluations | 5,287 | 4,855
Partnership adjustments | 3,793 | 3,329
Other | 3,705 | 2,973
Total deferred tax assets | 56,955 | 49,653
Deferred tax liabilities: |  |
Accumulated other comprehensive income – Unrealized gains on securities | 0 | 5,178
Deferred investment income | 10,199 | 10,199
Pension plan | 25,261 | 25,517
Mortgage servicing rights | 3,154 | 2,717
Other | 850 | 646
Total deferred tax liabilities | 39,464 | 44,257
Net deferred tax assets | $ 17,491 | $ 5,396

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