Accrued Expenses and Other Current Liabilities (Details) - Madison Industries IAQ Solutions Corporation - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Payables and Accruals [Line Items]
Seller earnout and deferred acquisition consideration	$ 2.6	$ 2.6
Personnel and restructuring costs	95.1	114.1
Commercial costs	18.4	18.9
Warranty costs	23.0	24.5
Accrued interest	66.4	46.4
Right-of-use liabilities	22.1	19.9
Insurance and professional fees	24.0	19.5
Income tax payable	1.1	5.4
Other	14.6	13.9
Total	$ 267.3	$ 265.2