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Related-Party Transactions | 12 Months Ended
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Dec. 31, 2023
Related Party Transactions [Abstract] |
Related-Party Transactions | Related-Party Transactions Founder Shares As of the closing of the Business Combination, the Sponsor owned 18,750,000 shares of Class B common stock the ("Founder Shares") which automatically converted into 18,750,000 shares of Class A common stock at the closing of the Business Combination. The Founder Shares, are subject to certain vesting and forfeiture conditions and transfer restrictions, including performance vesting conditions under which the price per share of Mirion's Class A common stock must meet or exceed certain established thresholds of $12, $14, or $16 per share for 20 out of 30 trading days before the fifth anniversary of the Closing Date of the Business Combination). The Founder Shares will be forfeited to the Company for no consideration if they fail to vest before October 20, 2026. Private Placement Warrants The Sponsor purchased an aggregate of 8,500,000 private placement warrants (the "Private Placement Warrants") at a price of $2.00 per whole warrant ($17.0 million in the aggregate) in a private placement (the “Private Placement”) that closed concurrently with the closing of GSAH's initial public offering (the "IPO"). Each Private Placement Warrant is exercisable for one whole share of Class A common stock at a price of $11.50 per share, subject to adjustment in certain circumstances, including upon the occurrence of certain reorganization events. The Private Placement Warrants are non-redeemable and exercisable on a cashless basis so long as they are held by the Sponsor or its permitted transferees. The Private Placement Warrants are accounted for as liabilities as they contain terms and features that do not qualify for equity classification under ASC 815. See Note 18, Fair Value Measurements, for the fair value of the Private Placement Warrants at December 31, 2023. Profits Interests In connection with the Business Combination Agreement, the Sponsor issued 8,100,000 Profits Interests to certain individuals affiliated with or expected to be affiliated with Mirion after the Business Combination. The holders of the Profits Interests have an indirect interest in the Founder Shares held by the Sponsor. The Profits Interests are subject to service and performance vesting conditions, including the occurrence of the Closing, and do not fully vest until all of the applicable conditions are satisfied. In addition, the Profits Interests are subject to certain forfeiture conditions. See Note 15, Stock-Based Compensation, for further detail regarding the Profits Interests. Registration Rights The holders of the Founder Shares and Private Placement Warrants are entitled to registration rights to require the Company to register the resale of any the Founder Shares and the shares underlying the Private Placement Warrants upon exercise pursuant to the Amended and Restated Registration Rights Agreement dated October 20, 2021 (the "RRA"). The RRA also provides registration rights of securities of other securityholders who were our security holders before the business combination. These RRA parties are also entitled to certain piggyback registration rights and the RRA also includes customary indemnification and confidentiality provisions. The Company will bear certain expenses incurred in connection with filing of any registration statements filed pursuant to the terms of the RRA, including those expenses incurred in connection with filing a shelf registration statement and two public offerings made pursuant to that shelf registration statement by Charterhouse Capital Partners in 2023. Subscription Agreements Concurrently with the execution of the Business Combination Agreement, the Company entered into a Subscription Agreement with GSAM Holdings LLC, pursuant to, and on the terms and subject to the conditions of which, GSAM Holdings LLC subscribed for 20,000,000 PIPE Shares of the Company’s Class A common stock for an aggregate purchase price equal to $200 million, subject to GSAM Holdings LLC’s rights to syndicate prior to the Closing. The PIPE Investment, including the syndication, was consummated substantially concurrently with Closing. Related Party Sponsor Note On November 12, 2020, the Sponsor agreed to loan the Company up to an aggregate of $2 million pursuant to the working capital note (the “Working Capital Note”). Any amounts borrowed under the Working Capital Note were non-interest bearing, unsecured and due at the closing of the Business Combination. The Working Capital Note of $2 million was forgiven in the Successor Period as reflected on the consolidated statement of stockholders' equity (deficit). Underwriting Commission The Company paid an underwriting commission of 2.0% of the gross proceeds of the GSAH's IPO (or $15 million) to the underwriters at the closing of the IPO, of which $11.3 million was paid to an affiliate of the Sponsor. In addition, deferred underwriting discounts and commissions were paid to the underwriters, at the completion of the Business Combination. The deferred underwriting discounts and commissions of $26.3 million were recorded as a current liability on the balance sheet as of June 30, 2021 by GSAH, of which $19.7 million was payable to an affiliate of the Sponsor. Charterhouse Capital Partners LLP The Company had entered into agreements with its Predecessor Period primary investor, Charterhouse Capital Partners LLP ("CCP"), which obligated the Company to pay quarterly management fees of $0.1 million per year. In return, CCP provided various investment banking services relating to financing arrangements, mergers and acquisitions and other services. During the Predecessor period from July 1, 2021 through October 19, 2021, the Company paid CCP $0.1 million for professional fees and expense reimbursements. Upon the completion of the Business Combination, the agreement with CCP was terminated. Additionally, the Company had entered into agreements with CCP which obligated the Company to pay certain expenses in support of any secondary market offerings of its remaining shares owned after the Business Combination. During the year ended December 31, 2023, $1.0 million of expenses were recorded. As of July 2023, CCP no longer owned shares of stock in the Company.

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- Definition The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480990/946-20-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480990/946-20-50-5 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480990/946-20-50-6 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481062/946-235-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481062/946-235-50-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483326/850-10-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(2)(g)(3)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(2)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(2)(e)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//850/tableOfContent Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483326/850-10-50-6 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483326/850-10-50-1 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483326/850-10-50-1 + Details
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