| Supplementary Information on Cash Flow Activities |
| 25. | Supplementary Information on Cash Flow Activities |
| | 2016 | | | 2015 | | | 2014 | | | | | | | | | | | | | Supplementary information | | | | | | | | | | Noncash transactions affecting cash flow activities | | | | | | | | | | Change in net unrealized (gain) loss on securities available for sale, including deferred income tax (asset)/liability of $1,085, $(5,717), and $4,717 in 2016, 2015, and 2014,respectively | | $ | 107 | | | $ | 38,989 | | | $ | (35,883 | ) | Change in liability for pension benefits, and deferred income tax (asset)/liability of $10,792, $10,124, $(12,298), in 2016, 2015, and 2014, respectively | | $ | (16,879 | ) | | $ | (15,836 | ) | | $ | 19,236 | | Repurchase and retirement of common stock | | $ | (56 | ) | | $ | (182 | ) | | $ | (3,049 | ) | Exercise of stock options | | $ | 55 | | | $ | 179 | | | $ | 2,885 | | Unsettled sales | | $ | - | | | $ | - | | | $ | 10,456 | | Other | | | | | | | | | | | | | Income taxes paid | | $ | 11,549 | | | $ | 6,437 | | | $ | 16,069 | | Interest paid | | $ | 7,635 | | | $ | 4,792 | | | $ | 5,764 | |
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