Mirion Technologies, Inc. Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary Of Assets And Laibilities Measured At Fair Value (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Assets:
Money market funds held in Trust Account	$ 750,074,432	$ 750,063,158
Liabilities:
Warrant Liability – Public Warrants	41,250,000	48,000,000
Fair Value, Recurring [Member]
Assets:
Money market funds held in Trust Account	750,074,432	750,063,158
Liabilities:
Warrant Liability – Public Warrants	41,250,000	48,000,000
Warrant Liability – Private Placement Warrants	20,225,828	23,676,615
Fair Value, Recurring [Member] \| Quoted Prices in Active Markets (Level 1) [Member]
Assets:
Money market funds held in Trust Account	750,074,432	750,063,158
Liabilities:
Warrant Liability – Public Warrants	41,250,000	48,000,000
Warrant Liability – Private Placement Warrants	0	0
Fair Value, Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Assets:
Money market funds held in Trust Account	0	0
Liabilities:
Warrant Liability – Public Warrants	0	0
Warrant Liability – Private Placement Warrants	0	0
Fair Value, Recurring [Member] \| Significant Other Unobservable Inputs (Level 3) [Member]
Assets:
Money market funds held in Trust Account	0	0
Liabilities:
Warrant Liability – Public Warrants	0	0
Warrant Liability – Private Placement Warrants	$ 20,225,828	$ 23,676,615