Consolidated Statements of Comprehensive Loss - USD ($) $ in Millions |
2 Months Ended | 4 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Dec. 31, 2021 |
Oct. 19, 2021 |
Dec. 31, 2022 |
Jun. 30, 2021 |
Jun. 30, 2020 |
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| Statement of Comprehensive Income [Abstract] | |||||
| Net loss | $ (23.0) | $ (105.7) | $ (288.4) | $ (158.4) | $ (119.1) |
| Foreign currency translation (loss) gain, net of tax | (20.5) | (7.5) | (50.3) | 34.2 | (9.3) |
| Unrecognized actuarial gain (loss) and prior service benefit, net of tax | (0.2) | 0.6 | 2.0 | 0.9 | 0.0 |
| Unrealized losses on net investment hedges, net of tax | 0.0 | 0.0 | (10.0) | 0.0 | 0.0 |
| Other comprehensive (loss) income, net of tax | (20.7) | (6.9) | (58.3) | 35.1 | (9.3) |
| Comprehensive loss | (43.7) | (112.6) | (346.7) | (123.3) | (128.4) |
| Less: Comprehensive loss attributable to noncontrolling interests | (0.8) | 0.0 | (14.8) | (0.1) | 0.0 |
| Comprehensive loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) stockholders | $ (42.9) | $ (112.6) | $ (331.9) | $ (123.2) | $ (128.4) |
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after tax and before adjustments, of gain (loss) from increase (decrease) in value of excluded component of derivative designated and qualifying as hedge. Adjustments include, but are not limited to, reclassifications for sale and settlement, and amounts recognized under systematic and rational method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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