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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Fair Value of Each Option Grant Estimated | The fair value of each option grant was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions shown as a weighted average for the year:
|  | Years Ended December 31,
|  | 2016 |  | 2015 |  | 2014
Expected option life (in years) |  | 4.70 - 6.00 |  | 4.80 - 5.50 |  | 5.50 - 6.00
Risk-free interest rate |  | 1.27 - 1.35% |  | 1.49 - 1.73% |  | 1.61 - 2.73%
Expected volatility |  | 39.58 - 55.58% |  | 36.29 - 53.83% |  | 36.74 - 40.50%
Dividend yield |  | —% |  | —% |  | —%
Summary of Company's Restricted Stock Activity | A summary of HC2’s restricted stock activity is as follows:
|  | Shares |  | Weighted Average Grant Date Fair Value
Unvested—January 1, 2015 |  | 338,702 |  |  | $ | 4.26 |
Granted |  | 1,539,114 |  |  | $ | 9.14 |
Vested |  | (1,087,128 | ) |  | $ | 8.35 |
Forfeited |  | — |  |  | $ | — |
Unvested—December 31, 2015 |  | 790,688 |  |  | $ | 8.14 |
Granted |  | 301,040 |  |  | $ | 3.89 |
Vested |  | (959,196 | ) |  | $ | 7.17 |
Forfeited |  | (16,611 | ) |  | $ | 5.03 |
Unvested—December 31, 2016 |  | 115,921 |  |  | $ | 5.59 |
Summary of Company's Stock Option Activity | A summary of HC2’s stock option activity is as follows:
|  | Shares |  | Weighted Average Exercise Price
Outstanding—January 1, 2015 |  | 3,573,141 |  |  | $ | 4.27 |
Granted |  | 2,552,673 |  |  | $ | 6.74 |
Exercised |  | — |  |  | $ | — |
Forfeited |  | (764,529 | ) |  | $ | 4.05 |
Outstanding—December 31, 2015 |  | 5,361,285 |  |  | $ | 5.48 |
Granted |  | 1,506,848 |  |  | $ | 10.49 |
Exercised |  | (2,000 | ) |  | $ | 4.06 |
Forfeited |  | (2,800 | ) |  | $ | 4.06 |
Expired |  | (34,236 | ) |  | $ | 6.68 |
Outstanding—December 31, 2016 |  | 6,829,097 |  |  | $ | 6.58 |
Eligible for exercise |  | 4,885,967 |  |  | $ | 5.31 |

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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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- 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=6415400&loc=d3e5070-113901 + Details
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