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Severance and Retention Costs related to our Restructured Operations (Tables) | 12 Months Ended
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Dec. 31, 2021
Restructured European Operations [Member] |
Severance and Retention Costs [Abstract] |
Severance and Retention Costs | The following table summarizes the severance and retention expenses related to our restructured European operations that we recognized for the periods indicated (in millions):
|  | Year Ended December 31, 2021 |  |  | Year Ended December 31, 2020 |
R&D expenses |  | $ | 0.6 |  |  | $ | 4.2 |
SG&A expenses |  |  | 1.1 |  |  |  | 8.3 |
Total |  | $ | 1.7 |  |  | $ | 12.5 |
The following table summarizes the severance and retention reserve amounts related to our restructured European operations that we included in accrued compensation for the period indicated (in millions):
|  | Year Ended December 31, 2021 |
Beginning balance as of January 1, 2021 |  | $ | 12.4 |
Amount expensed during the year |  |  | 2.6 |
Reserve adjustments during the year |  |  | (0.9 | )
Net amount expensed during the year |  |  | 1.7 |
Amounts paid during the year |  |  | (14.1 | )
Ending balance as of December 31, 2021 |  | $ | — |
Restructured North American TEGSEDI Operations [Member] |
Severance and Retention Costs [Abstract] |
Severance and Retention Costs | The following table summarizes the severance expenses related to our Restructured North American TEGSEDI Operations that we recognized for the period indicated (in millions):
|  | Year Ended December 31, 2021 |
R&D expenses |  | $ | 2.3 |
SG&A expenses |  |  | 7.1 |
Total |  | $ | 9.4 |
The following table summarizes the severance reserve amounts related to our Restructured North American TEGSEDI Operations that we included in accrued compensation for the period indicated (in millions):
|  | Year Ended December 31, 2021 |
Beginning balance as of January 1, 2021 |  | $ | — |
Net amount expensed during the year |  |  | 9.4 |
Amounts paid during the year |  |  | (9.4 | )
Ending balance as of December 31, 2021 |  | $ | — |

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- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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