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Other Income and Other Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
All other income and commissions: |  |  |
Other service charges | $ 15,122 | $ 12,532 | $ 11,731
ATM and interchange fees | 13,354 | 12,425 | 11,965
Mortgage banking | 10,587 | 4,649 | 10,215
Dividend income | 10,555 | 0 | 0
Letter of credit fees | 5,298 | 4,661 | 4,103
Electronic banking fees | 5,134 | 5,082 | 5,477
Insurance commissions | 2,096 | 2,514 | 2,981
Gain/(loss) on extinguishment of debt | (15) | (14,329) | 0
Deferred compensation | (3,224) | 6,322 | 3,025
Other | 19,488 | 11,029 | 14,734
Total | 78,395 | 44,885 | 64,231
All other expense: |  |  |
Travel and entertainment | 16,442 | 11,462 | 10,275
Other insurance and taxes | 9,684 | 9,686 | 10,891
Employee training and dues | 7,218 | 5,551 | 5,691
Supplies | 6,917 | 4,106 | 4,434
Customer relations | 5,583 | 5,750 | 6,255
Non-service components of net periodic pension and post-retirement cost | 5,251 | 2,144 | (666)
Tax credit investments | 4,712 | 3,468 | 3,349
Miscellaneous loan costs | 3,732 | 2,751 | 2,586
OREO | 2,630 | 1,006 | 773
Litigation and regulatory matters | 644 | 40,517 | 30,469
Other | 73,223 | 48,693 | 41,391
Total | $ 136,036 | $ 135,134 | $ 115,448

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