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LOAN COMMITMENTS AND OTHER RELATED ACTIVITIES (Tables) | 12 Months Ended
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Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract] |
Contractual Amount of Financial Instruments with Off-Balance-Sheet Risk | The contractual amount of financial instruments with off-balance sheet risk was as follows for the dates indicated:
|  | December 31,
|  | 2017 |  | 2016
($ in thousands) |  | Fixed Rate |  | Variable Rate |  | Fixed Rate |  | Variable Rate
Commitments to extend credit (1) |  | $ | 1,851 |  |  | $ | 335,654 |  |  | $ | 74,777 |  |  | $ | 201,321 |
Unused lines of credit |  | 19,085 |  |  | 1,309,170 |  |  | 27,151 |  |  | 888,236 |
Letters of credit |  | 1,050 |  |  | 12,976 |  |  | 1,784 |  |  | 8,655 |
(1) | Includes $0 and $65.1 million, respectively, of commitments to extend credit related to discontinued operations at December 31, 2017 and 2016.

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