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Stock Incentive Plans (Tables) | 12 Months Ended
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Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Stock Options Activity | A summary of the status of the Company’s stock options at December 31, 2016, together with changes during the periods then ended, is presented below:
|  |  |  |  |  |  |  |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Weighted |  |  | Average |  |  | Aggregate |
|  |  |  |  |  | Average |  |  | Remaining |  |  | Intrinsic |
|  | Number |  |  | Exercise |  |  | Contractual |  |  | Value |
|  | of Options |  |  | Price |  |  | Term (years) |  |  | (in thousands) |
Outstanding at December 31, 2015 |  |  | 360,100 |  |  | $ | 17.35 |  |  |  |  |  |  |  |  |
Options granted at market price |  |  | 10,000 |  |  |  | 39.80 |  |  |  |  |  |  |  |  |
Options exercised |  |  | (4,400 | ) |  |  | 14.32 |  |  |  |  |  |  |  |  |
Options cancelled |  |  | (62,500 | ) |  |  | 18.56 |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2016 |  |  | 303,200 |  |  |  | 17.89 |  |  |  | 4.53 |  |  |  | 14,012 |
Exercisable at December 31, 2016 |  |  | 206,950 |  |  | $ | 15.44 |  |  |  | 3.86 |  |  | $ | 10,069 |
Schedule of Restricted Stock Unit Activity | The following table presents restricted stock unit activity:
|  |  |  |  |  | Weighted Average |
|  |  |  |  |  | Grant Date |
|  | Units |  |  | Fair Value |
Nonvested at December 31, 2015 |  |  | 150,811 |  |  | $ | 42.74 |
Granted |  |  | 150,780 |  |  |  | 41.72 |
Vested |  |  | (35,604 | ) |  |  | 40.67 |
Cancelled/Forfeited |  |  | (37,112 | ) |  |  | 42.19 |
Nonvested at December 31, 2016 |  |  | 228,875 |  |  | $ | 42.48 |

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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=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired 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=6415400&loc=d3e5070-113901 + Details
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