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Stock-Based Compensation - Schedule of Stock-based Compensation Activity (Details) - $ / shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2024
2024 BLA PSU | Minimum |  |  |
Weighted Average Granted Date Fair Value |  |  |
Payout opportunity target |  | 0.00% |
2024 BLA PSU | Maximum |  |  |
Weighted Average Granted Date Fair Value |  |  |
Payout opportunity target |  | 100.00% |
TSR PSU | Minimum |  |  |
Weighted Average Granted Date Fair Value |  |  |
Payout opportunity target |  | 0.00% |
TSR PSU | Maximum |  |  |
Weighted Average Granted Date Fair Value |  |  |
Payout opportunity target |  | 200.00% |
Stock Options |  |  |
Target Shares or Units |  |  |
Stock options granted (in shares) | 145,984 | 0 |
Weighted Average Granted Date Fair Value |  |  |
Stock options granted (in USD per share) | $ 4.11 | $ 0 |
Vesting period |  |  | 1 year
Restricted Stock Units |  |  |
Target Shares or Units |  |  |
Stock units granted (in shares) | 200,108 | 787,688 |
Weighted Average Granted Date Fair Value |  |  |
Stock options/units granted (in USD per share) | $ 7.56 | $ 9.05 |
Vesting period |  |  | 4 years
Restricted Stock Units | Board of Directors |  |  |
Target Shares or Units |  |  |
Stock units granted (in shares) | 85,224 |  |
Weighted Average Granted Date Fair Value |  |  |
Vesting period | 1 year |  |
Performance Stock Units |  |  |
Target Shares or Units |  |  |
Stock units granted (in shares) | 424,400 | 911,400 |
Weighted Average Granted Date Fair Value |  |  |
Stock options/units granted (in USD per share) | $ 3.06 | $ 8.92 |
Performance Stock Units | 2024 BLA PSU |  |  |
Target Shares or Units |  |  |
Stock units granted (in shares) |  | 487,000 |
Performance Stock Units | TSR PSU |  |  |
Target Shares or Units |  |  |
Stock units granted (in shares) |  | 424,400 |
Weighted Average Granted Date Fair Value |  |  |
Vesting period |  | 3 years |
Shares authorized for issuance (in shares) |  | 848,800 |
Inducement Shares, Stock Options |  |  |
Target Shares or Units |  |  |
Stock options granted (in shares) |  | 18,700 |
Weighted Average Granted Date Fair Value |  |  |
Stock options granted (in USD per share) |  | $ 6.04 |
Inducement Shares, Stock Options | Inducement Shares |  |  |
Weighted Average Granted Date Fair Value |  |  |
Vesting period |  | 3 years |
Inducement Shares, Restricted Stock Units |  |  |
Target Shares or Units |  |  |
Stock units granted (in shares) |  | 310,000 |
Weighted Average Granted Date Fair Value |  |  |
Stock options/units granted (in USD per share) |  | $ 7.00 |
Inducement Shares, Restricted Stock Units | Inducement Shares |  |  |
Weighted Average Granted Date Fair Value |  |  |
Vesting period |  | 4 years |

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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