Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenues:
Total revenues	$ 925.4	$ 860.8	$ 800.9
Cost of revenues:
Total cost of revenues	486.8	461.1	444.5
Gross profit	438.6	399.7	356.4
Operating expenses:
Selling, general and administrative	348.2	341.1	340.1
Research and development	38.9	35.0	31.7
(Gain) loss on disposal of business	0.0	(1.2)	6.5
Total operating expenses	387.1	374.9	378.3
Income (loss) from operations	51.5	24.8	(21.9)
Other expense (income):
Interest expense	42.2	57.9	61.9
Interest income	(12.1)	(6.6)	(4.8)
Loss on debt extinguishment	5.8	0.0	2.6
Foreign currency (gain) loss, net	(17.4)	2.2	(0.3)
Increase in fair value of warrant liabilities	0.0	5.3	24.8
Other expense (income), net	0.3	(0.1)	(0.8)
Income (loss) before income taxes	32.7	(33.9)	(105.3)
Income tax expense (benefit)	2.9	2.7	(6.6)
Net income (loss)	29.8	(36.6)	(98.7)
Income (loss) attributable to noncontrolling interests	1.0	(0.5)	(1.8)
Net income (loss) attributable to Mirion Technologies, Inc.	$ 28.8	$ (36.1)	$ (96.9)
Earnings (loss) per common share attributable to Mirion Technologies, Inc.:
Basic (in dollars per share)	$ 0.13	$ (0.18)	$ (0.49)
Diluted (in dollars per share)	$ 0.11	$ (0.18)	$ (0.49)
Weighted average common shares outstanding:
Basic (in shares)	229,959	204,991	196,369
Diluted (in shares)	261,154	204,991	196,369
Product
Revenues:
Total revenues	$ 690.6	$ 643.1	$ 597.8
Cost of revenues:
Total cost of revenues	376.6	348.7	339.7
Service
Revenues:
Total revenues	234.8	217.7	203.1
Cost of revenues:
Total cost of revenues	$ 110.2	$ 112.4	$ 104.8