Acquisitions and Divestitures - Schedule of Business Acquisition, Pro Forma Information, Nonrecurring Adjustments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Business Combination [Line Items]
Net sales	$ 1,823.5	$ 1,880.8	$ 3,625.0	$ 3,485.5
Total adjustments to net loss	$ 110.6	99.5	$ 214.5	66.7
Mattress Firm
Business Combination [Line Items]
Net sales				262.1
Total adjustments to net loss				(195.7)
Business combination, initial accounting incomplete, adjustment to stock compensation expense				340.5
Business combination, acquisition related costs		$ 50.2		$ 50.2
Income tax (provision) percentage of proforma adjustment				25.00%
Mattress Firm | Mattress Firm pre-acquisition net revenue
Business Combination [Line Items]
Net sales				$ 345.1
Mattress Firm | Elimination of intercompany sales to Mattress Firm
Business Combination [Line Items]
Net sales				(83.0)
Mattress Firm | Mattress Firm pre-acquisition (loss) earnings
Business Combination [Line Items]
Total adjustments to net loss				(318.3)
Mattress Firm | Transaction Costs
Business Combination [Line Items]
Total adjustments to net loss				50.2
Mattress Firm | Intercompany Profit Elimination
Business Combination [Line Items]
Total adjustments to net loss				78.5
Mattress Firm | Purchase Price Allocation Adjustments
Business Combination [Line Items]
Total adjustments to net loss				16.7
Mattress Firm | Interest expense adjustments
Business Combination [Line Items]
Total adjustments to net loss				(2.4)
Mattress Firm | Tax effect of Pro Forma Adjustments
Business Combination [Line Items]
Total adjustments to net loss				$ (20.4)