Condensed Consolidated Statements of Cash Flows - Madison Industries IAQ Solutions Corporation - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Net income (loss) attributable to the Company	$ 43.0	$ 46.2
Income (loss) from discontinued operations, net of taxes	0.0	(1.0)
Adjustments to reconcile net income to net cash flows from operating activities
Depreciation and amortization	53.9	35.3
Deferred income taxes	(3.7)	(2.8)
Equity appreciation rights	9.5	0.0
Non-cash interest expense	4.7	3.6
(Gain) loss on disposal of property, plant and equipment	0.1	0.4
(Gain) loss on foreign exchange	0.1	(2.2)
(Gain) loss on available-for-sale marketable securities	0.0	(1.1)
Other	0.5	0.2
Changes to assets and liabilities, net of acquisitions and divestitures
Accounts receivable	(108.3)	(27.8)
Inventories	(14.7)	(8.3)
Accounts payable and accrued expenses	81.4	35.2
Customer deposits and deferred revenue	(5.2)	(13.3)
Other assets and liabilities, net	(3.5)	(9.5)
Net cash flows provided by operating activities - continuing operations	57.8	54.9
Net cash flow provided by (used in) operating activities - discontinued operations	0.0	(0.3)
Net cash flows provided by (used in) operating activities	57.8	54.6
Purchase of property, plant and equipment	(7.4)	(4.5)
Purchase of available-for-sale marketable securities	0.0	(39.3)
Capitalized software development costs	(0.7)	0.0
Proceeds from the sale of available-for-sale marketable securities	0.0	60.0
Acquisitions of businesses, net of cash acquired	0.0	(11.7)
Net cash flows provided by (used in) investing activities - continuing operations	(8.1)	4.5
Net cash flows provided by (used in) investing activities - discontinued operations	0.0	7.0
Net cash flows provided by (used in) investing activities	(8.1)	11.5
Debt principal payments	(7.0)	(0.1)
Distributions to Holdings	14.3	9.8
Distributions to and redemptions of noncontrolling interests	0.0	(0.2)
Contributions from noncontrolling interests	0.0	0.2
Taxes paid related to net share settlement of equity awards	(36.6)	0.0
Payments on financing leases	(0.6)	(0.5)
Net cash flows provided by (used in) financing activities - continuing operations	(29.9)	9.2
Net cash flows provided by (used in) financing activities - discontinued operations	0.0	0.0
Net cash flows provided by (used in) financing activities	(29.9)	9.2
Effects of exchange rate changes on cash	0.4	0.1
Net change in cash and cash equivalents	20.2	75.4
Cash and cash equivalents at the beginning of the period	208.4	339.9
Cash and cash equivalents at the end of period	228.6	415.3
Supplemental cash flow disclosures:
Cash paid for interest	$ 66.1	$ 45.9