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Stock-Based Compensation Plans and Employee Benefits (Tables) | 12 Months Ended
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Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of changes in non-vested restricted stock units | Changes in non-vested restricted stock units ("Units") during the year ended December 31, 2017 were as follows (number of shares and $ in thousands, except per share amounts):
|  | Number of Shares |  | Weighted Average Grant Date Fair Value Per Share |  | Aggregate Intrinsic Value
Non-vested as of December 31, 2016 |  | 290 |  |  | $ | 11.33 |  |  | $ | 3,578 |
Granted |  | 116 |  |  | $ | 12.09 |  |  |
Vested |  | (75 | ) |  | $ | 12.15 |  |  |
Forfeited |  | (49 | ) |  | $ | 13.95 |  |  |
Non-vested as of December 31, 2017 |  | 282 |  |  | $ | 10.98 |  |  | $ | 3,183 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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