Equity Appreciation Rights (Tables)

3 Months Ended

Mar. 31, 2026

Madison Industries IAQ Solutions Corporation

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award

Equity appreciation rights cost by award type was as follows:

	Three months ended March 31,
	2026		2025
Equity compensation cost - EAR Plan	$	—	$	5.2
Equity compensation cost - Amended EAR Plan	10.4		—
Total Equity Appreciation Rights cost	$	10.4	$	5.2