Derivative Financial Instruments - Effect of Derivatives on Comprehensive Income (Details) - Madison Industries IAQ Solutions Corporation - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain (Loss) Recognized in OCI	$ 5.6	$ (3.8)
Gain (Loss) Reclassified from Accumulated OCI to Earnings	1.5	1.5
Interest rate swaps and collars
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain (Loss) Recognized in OCI	5.9	(4.2)
Gain (Loss) Reclassified from Accumulated OCI to Earnings	0.6	1.7
Foreign currency derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gain (Loss) Recognized in OCI	(0.3)	0.4
Gain (Loss) Reclassified from Accumulated OCI to Earnings	$ 0.9	$ (0.2)