Unusual Items (Tables)

3 Months Ended

Mar. 31, 2023

Unusual or Infrequent Items, or Both [Abstract]

Summary of Unusual Items Expense

The following table presents total unusual items, component of other expense, net, in the unaudited condensed consolidated statements of operations:

	Three months ended March 31,
	2023		2022
	(In millions)
Unusual items
Merger costs	$	20.0	$	—
Legal matters	—		16.1
Proxy contest and related litigation costs	—		3.1
Terminated merger costs	—		2.5
	$	20.0	$	21.7

The components of the Merger costs are as follows (in millions):

Consulting and other professional costs	$	11.4
Legal	4.6
Internal labor (including $0.8 million of recurring employee costs)	4.0
	$	20.0