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Restructuring | 12 Months Ended
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Dec. 31, 2023
Restructuring and Related Activities [Abstract] |
Restructuring | 12. Restructuring 2022 Restructuring Plan. During 2022, we relocated our corporate headquarters from Foothill Ranch, California (“Foothill Ranch”) to Franklin, Tennessee (“Franklin”). In conjunction with the relocation, we initiated a restructuring plan during the quarter ended December 31, 2022, which consisted primarily of employee retention benefits aimed at incentivizing Foothill Ranch employees to assist with the buildout of the new corporate function in Franklin (“2022 Restructuring Plan”). At December 31, 2023, the total amount expected to be incurred in connection with the 2022 Restructuring Plan is approximately $8.0 million. Through December 31, 2023, we incurred restructuring costs of $7.2 million, of which cash paid was $5.4 million, related to the 2022 Restructuring Plan, which consisted of employee-related costs and office rent within Restructuring costs in our Statements of Consolidated Income (Loss). Substantially all of the costs associated with the restructuring efforts initiated under the 2022 Plan were incurred and expensed as of December 31, 2023. The following table summarizes activity relating to the 2022 Restructuring Plan liabilities (in millions of dollars):
BALANCE, December 31, 2021 |  | $ | — |
Restructuring costs |  |  | 2.2 |
Costs paid or otherwise settled 1 |  |  | (0.5 | )
BALANCE, December 31, 2022 |  |  | 1.7 |
Restructuring costs |  |  | 5.0 |
Costs paid or otherwise settled 1 |  |  | (5.5 | )
BALANCE, December 31, 2023 |  | $ | 1.2 |
1. Cash paid during the years ended December 31, 2023 and December 31, 2022 was $5.0 million and $0.4 million, respectively. 2020 Restructuring Plan. We initiated a restructuring plan during the quarter ended June 30, 2020, which consisted primarily of reduction in force measures (“2020 Restructuring Plan”) in order to align our projected operational requirements with reduced short and mid-term commercial aerospace demand as a result of the COVID pandemic. We incurred total restructuring costs of $6.7 million related to the 2020 Restructuring Plan, which consisted of severance, voluntary buyout packages, outplacement services, estimated medical costs and associated payroll costs within Restructuring costs in our Statements of Consolidated Income (Loss). We completed the 2020 Restructuring Plan as of December 31, 2021. The following table summarizes activity relating to the 2020 Restructuring Plan liabilities (in millions of dollars):
BALANCE, December 31, 2020 |  | $ | 1.4 |
Restructuring costs |  |  | — |
Costs paid or otherwise settled |  |  | (0.6 | )
Other adjustments 1 |  |  | (0.8 | )
BALANCE, December 31, 2021 |  | $ | — |
1. In 2021, we revised our production forecasts, thereby reducing the estimated number of headcount reductions necessary under the 2020 Restructuring Plan as compared with our initial requirements. These reductions to accommodate the revised headcount requirements are included in Other adjustments with an offset to Restructuring costs in our Statements of Consolidated Income (Loss).

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- Definition The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//420/tableOfContent Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(e)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 + Details
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