Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2022

Earnings Per Share [Abstract]

Reconciliation of Numerator and Denominator

A reconciliation of the numerator and denominator used in the calculation of basic and diluted loss per common share is as follows (in millions, except per share amounts):

	Successor		Predecessor		Successor		Predecessor
	Three Months Ended September 30,		Three Months Ended September 30,		Nine Months Ended September 30,		Nine Months Ended September 30,
	2022		2021		2022		2021
Net loss attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) shareholders	$	(47.1)	$	(46.7)	$	(123.4)	$	(141.3)
Weighted average common shares outstanding – basic and diluted	181.333		6.665		181.058		6.623
Net loss per common share attributable to Mirion Technologies, Inc. (Successor) / Mirion Technologies (TopCo), Ltd. (Predecessor) — basic and diluted	$	(0.26)	$	(7.01)	$	(0.68)	$	(21.33)
Anti-dilutive employee share-based awards, excluded	1.735		0.173		0.939		0.215