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Stock Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Changes in Company's Nonvested Restricted Stock Awards | A summary of changes in the Company’s nonvested Restricted Stock Awards (“RSAs”) under the Omnibus Incentive Plan for the six months ended June 30, 2018 were as follows:
|  |  |  |  |  | Weighted-Average |
|  |  |  |  |  | Grant-Date |
Nonvested RSAs |  | Shares |  |  | Fair Value |
Nonvested at January 1, 2018 |  |  | 102,776 |  |  | $ | 18.68 |
Granted |  |  | 45,290 |  |  |  | 39.91 |
Vested |  |  | (58,435 | ) |  |  | 18.48 |
Forfeited |  |  | (1,792 | ) |  |  | 22.77 |
Nonvested at June 30, 2018 |  |  | 87,839 |  |  | $ | 29.69 |
Summary of Changes in Company's Nonvested Restricted Stock Units | A summary of changes in the Company’s nonvested Restricted Stock Units (“RSUs”) under the Omnibus Incentive Plan for the six months ended June 30, 2018 were as follows:
|  |  |  |  |  | Weighted-Average |
|  |  |  |  |  | Grant-Date |
Nonvested RSUs |  | Shares |  |  | Fair Value |
Nonvested at January 1, 2018 |  |  | — |  |  | $ | — |
Granted |  |  | 59,658 |  |  |  | 38.75 |
Vested |  |  | — |  |  |  | — |
Forfeited |  |  | — |  |  |  | — |
Nonvested at June 30, 2018 |  |  | 59,658 |  |  | $ | 38.75 |
Summary of Changes in Company's Nonvested Performance Stock Units | A summary of changes in the Company’s nonvested Performance Stock Units (“PSUs”) under the Omnibus Incentive Plan for the six months ended June 30, 2018 were as follows:
|  |  |  |  |  | Weighted-Average |
|  |  |  |  |  | Grant-Date |
Nonvested PSUs |  | Shares |  |  | Fair Value |
Nonvested at January 1, 2018 |  |  | — |  |  | $ | — |
Granted |  |  | 59,658 |  |  |  | 38.57 |
Vested |  |  | — |  |  |  | — |
Forfeited |  |  | — |  |  |  | — |
Nonvested at June 30, 2018 |  |  | 59,658 |  |  | $ | 38.57 |
Schedule of Performance Stock Units, Valuation Assumptions |
|  | Six Months Ended |
|  | June 30, 2018 |
Grant date |  | May 1, 2018 |
Performance period |  | 5.00 Years |
Stock price |  | $ | 38.85 |
Triumph stock price volatility |  |  | 29.13 | %
Risk-free rate |  |  | 2.76 | %
Summary of Changes in Company's Stock Options | A summary of the changes in the Company’s stock options under the Omnibus Incentive Plan for the six months ended June 30, 2018 were as follows:
|  |  |  |  |  |  |  |  |  | Weighted-Average |  |  |  |  |
|  |  |  |  |  |  |  |  |  | Remaining |  |  | Aggregate |
|  |  |  |  |  | Weighted-Average |  |  | Contractual Term |  |  | Intrinsic Value |
Stock Options |  | Shares |  |  | Exercise Price |  |  | (In Years) |  |  | (In Thousands) |
Outstanding at January 1, 2018 |  |  | 185,328 |  |  | $ | 18.97 |  |  |  |  |  |  |  |  |
Granted |  |  | 51,952 |  |  |  | 38.75 |  |  |  |  |  |  |  |  |
Exercised |  |  | (2,556 | ) |  |  | 17.16 |  |  |  |  |  |  |  |  |
Forfeited or expired |  |  | (3,186 | ) |  |  | 18.98 |  |  |  |  |  |  |  |  |
Outstanding at June 30, 2018 |  |  | 231,538 |  |  | $ | 23.43 |  |  |  | 8.47 |  |  | $ | 4,010 |
Fully vested shares and shares expected to vest at June 30, 2018 |  |  | 231,538 |  |  | $ | 23.43 |  |  |  | 8.47 |  |  | $ | 4,010 |
Shares exercisable at June 30, 2018 |  |  | 75,550 |  |  | $ | 17.73 |  |  |  | 7.95 |  |  | $ | 1,739 |
Schedule of Information Related to Stock Options | Information related to the stock options for the six months ended June 30, 2018 and 2017 was as follows:
|  | Six Months Ended June 30, |
(Dollars in thousands, except per share amounts) |  | 2018 |  |  | 2017 |
Aggregate intrinsic value of options exercised |  | $ | 59 |  |  | $ | 243 |
Cash received from option exercises |  |  | — |  |  |  | 281 |
Tax benefit realized from options exercises |  |  | 12 |  |  |  | 85 |
Weighted average fair value of options granted |  | $ | 13.22 |  |  | $ | 8.71 |
Fair Value of Stock Options Granted Weighted-Average Assumptions | The fair value of the stock options granted was determined using the following weighted-average assumptions:
|  | Six Months Ended June 30, |
|  | 2018 |  |  | 2017 |
Risk-free interest rate |  |  | 2.85 | % |  |  | 2.11 | %
Expected term |  | 6.25 years |  |  | 6.25 Years |
Expected stock price volatility |  |  | 28.07 | % |  |  | 29.70 | %
Dividend yield |  |  | — |  |  |  | — |

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- Definition Tabular disclosure of cash received from exercise of stock options and similar instruments granted under share-based payment arrangements and tax benefit from exercise of stock options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=96867065&loc=SL79508275-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + 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) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: 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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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of number and weighted-average grant date fair value for nonvested performance shares. + 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) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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