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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract] |
Schedule of Share-based Payment Award, Options Granted, Assumptions and Weighted Average Fair Value | The total fair value of options granted during the years ended December 31, 2020 and 2019 was $1,066 and $50, respectively, based on the following assumptions and weighted average fair values:
|  | December 31,
|  | 2020 |  | 2019
Weighted Average Fair Value of Grants |  | $ | 3.56 |  |  | $ | 3.48 |
Risk-free Interest Rate |  | 1.61 | % |  | 2.13 | %
Expected Dividend Yield |  | — | % |  | — | %
Expected Forfeiture Rate |  | — | % |  | — | %
Expected Volatility |  | 55.33 | % |  | 43.60 | %
Expected Term in Years |  | 5.11 |  | 6.50
Share-based Compensation, Stock and Performance Options Rollforward | A summary of the status of stock options granted is presented below:
|  |  |  |  |  | Weighted |  |
|  |  |  |  |  | Average |  |
|  |  |  | Weighted |  | Remaining |  | Aggregate
|  |  |  | Average |  | Contractual |  | Intrinsic
|  |  |  | Exercise |  | Term (in |  | Value (in
|  | Shares |  | Price |  | years) |  | thousands)
Outstanding at December 31, 2020 |  | 4,200,509 |  |  | $ | 15.32 |  |  |  |  |
Granted |  | — |  |  | $ | — |  |  |  |  |
Exercised |  | (704,105) |  |  | $ | 7.28 |  |  |  |  |
Forfeited |  | (3,410) |  |  | $ | 10.53 |  |  |  |  |
Expired |  | (502,900) |  |  | $ | 42.07 |  |  |  |  |
Outstanding at December 31, 2021 |  | 2,990,094 |  |  | $ | 12.72 |  |  | 3.79 |  | $ | 12,975 |
Exercisable at December 31, 2021 |  | 2,814,288 |  |  | $ | 12.86 |  |  | 3.53 |  | $ | 12,402 |
Schedule of Nonvested Restricted Stock Units Activity | The following table represents the nonvested restricted stock units and their corresponding fair value (based upon the closing share price) at the date of grant:
|  | Number of |  | Weighted Average
|  | Shares |  | Grant Date Fair Value
Nonvested at December 31, 2020 |  | 1,871,127 |  |  | $10.10
Granted |  | 1,110,713 |  |  | $11.35
Vested |  | (866,260) |  |  | $10.68
Forfeited |  | (77,603) |  |  | $9.68
Nonvested at December 31, 2021 |  | 2,037,977 |  |  | $10.55
Schedule of Nonvested Performance-based Units Activity | The following table represents the nonvested performance share units and their corresponding fair value (based upon the Monte Carlo Methodology for market based awards and the stock price on the date of grant for performance based awards) on the date of grant:
|  | Number of |  | Weighted Average
|  | Shares |  | Grant Date Fair Value
Nonvested at December 31, 2020 |  | 1,767,438 |  |  | $13.85
Granted |  | 862,949 |  |  | $8.85
Issued |  | 111,231 |  |  | $20.79
Vested |  | (291,653) |  |  | $21.28
Forfeited |  | (129,942) |  |  | $15.68
Nonvested at December 31, 2021 |  | 2,320,023 |  |  | $11.20

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- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&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://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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- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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