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Equity-Based Compensation and Other - Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Shares Under Option |  |
Outstanding at beginning of period (in shares) | 3,208 |
Options cancelled | (61) |
Options exercised | 11 | 0
Options expired | $ (152,000) |
Outstanding at end of period (in shares) | 2,984 | 3,208
Options vested and expected to vest | 2,984 |
Options exercisable at period end | 2,984 |
Weighted Average Option Price Per Share |  |
Outstanding at beginning of period (in USD per share) | $ 6.73 |
Options cancelled, weighted average option price per share | 6.82 |
Options exercised, weighted average option price per share | 3.87 |
Options expired, weighted average option price per share | 12.94 |
Outstanding at end of period (in USD per share) | 6.42 | $ 6.73
Options expected to vest, weighted average option price per share | 6.42 |
Options exercisable at period end, weighted average option price per share | $ 6.42 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] |  |
Outstanding at end of period, weighted average remaining contractual life | 4 years |
Options vested and expected to vest, weighted average remaining contractual life | 4 years |
Options exercisable, weighted average remaining contractual life | 4 years |
Outstanding at end of period, aggregate intrinsic value | $ 13 |
Options vested and expected to vest, aggregate intrinsic value | 13 |
Options exercisable, aggregate intrinsic value | $ 13 |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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