Capital Stock

6 Months Ended

Jun. 30, 2026

Share-Based Payment Arrangement [Abstract]

Capital Stock

Capital Stock

Common Shares

The Company has an unlimited number of authorized common shares as of June 30, 2026.

Share-based compensation expense from continuing operations, by expense category, consisted of the following:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2026		2025		2026		2025
	(Amounts in millions)
Share-based compensation expense:
Other operating expense	$	3.4	$	0.9	$	3.9	$	1.7
General and administrative	13.5		4.3		16.2		7.6
Restructuring and other	0.1		2.2		0.1		2.4
	$	17.0	$	7.4	$	20.2	$	11.7

Rights Agreement

On March 10, 2026, the Board adopted a Shareholder Protection Rights Agreement and declared a dividend of one right per common share, issued to shareholders of record on March 20, 2026. The rights become exercisable upon the acquisition of 17.5% or more of the Company’s common shares, and generally entitle holders to purchase one common share at an exercise price of $93.00, subject to adjustment. Refer to the Company’s March 10, 2026 Form 8‑K for additional information.