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Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2021
Share-based Payment Arrangement [Abstract] |
Shares Authorized For Distribution | Stock-based compensation awards granted by our Board of Directors for the three and nine months ended September 30, 2021 and 2020 were as follows:
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30, |  |
| 2021 |  | 2020 |  | 2021 |  | 2020 |  |  |  |
Award type: |  |  |  |  |  |  |  |  |  |  |
Stock options | — |  |  | 4,000 |  |  | 479,500 |  |  | 304,000 |  |  |  |  |
Deferred share units | 15,621 |  |  | 20,027 |  |  | 41,293 |  |  | 44,670 |  |  |  |  |
Restricted stock units | — |  |  | 16,729 |  |  | 515,960 |  |  | 328,720 |  |  |  |  |
Share-based Compensation, Stock Options, Activity | Stock option, deferred share unit and restricted stock unit award activity under the Company's Omnibus Equity Incentive Plan for the nine months ended September 30, 2021 was as follows: Stock Options
| Number of Shares |  | Weighted- Average Exercise Price
Outstanding unvested as of December 31, 2020 | 906,361 |  |  | $ | 13.01 |
Granted | 479,500 |  |  | 11.49 |
Vested | (1,227,592) |  |  | 12.05 |
Forfeited | (42,349) |  |  | 13.36 |
Outstanding unvested as of September 30, 2021 | 115,920 |  |  | $ | 16.85 |
Share-based Compensation, Deferred Share Unit And Restricted Stock Unit, Activity |
| Number of Shares |  | Weighted- Average Grant Date Fair Value
Outstanding unvested as of December 31, 2020 | 524,488 |  |  | $ | 10.41 |
Granted | 557,253 |  |  | 11.48 |
Vested | (1,062,252) |  |  | 10.95 |
Cancelled | (16,793) |  |  | 10.78 |
Outstanding unvested as of September 30, 2021 | 2,696 |  |  | $ | 13.96 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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