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Acquisitions and Divestitures - Schedule of Business Acquisition, Pro Forma Information, Nonrecurring Adjustments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Business Combination [Line Items] |  |  |  |
Net sales | $ 1,880.8 | $ 1,233.6 | $ 3,485.5 | $ 2,423.0
Total adjustments to net income (loss) | $ 99.5 | 106.5 | 66.7 | 183.3
Mattress Firm |  |  |  |
Business Combination [Line Items] |  |  |  |
Net sales |  | 760.8 | 267.1 | 1,496.6
Total adjustments to net income (loss) |  | 11.2 | (195.7) | (98.8)
Business combination, initial accounting incomplete, adjustment to stock compensation expense |  |  | 340.5 |
Business combination, acquisition related costs |  | 7.3 | $ 50.2 | 22.1
Income tax (provision) percentage of proforma adjustment |  |  | 25.00% |
Mattress Firm | Mattress Firm pre-acquisition net revenue |  |  |  |
Business Combination [Line Items] |  |  |  |
Net sales |  | 981.7 | $ 345.1 | 1,929.3
Mattress Firm | Elimination of intercompany sales to Mattress Firm |  |  |  |
Business Combination [Line Items] |  |  |  |
Net sales |  | (220.9) | (78.0) | (432.7)
Mattress Firm | Mattress Firm pre-acquisition (loss) earnings |  |  |  |
Business Combination [Line Items] |  |  |  |
Total adjustments to net income (loss) |  | 32.2 | (318.3) | 51.3
Mattress Firm | Transaction Costs |  |  |  |
Business Combination [Line Items] |  |  |  |
Total adjustments to net income (loss) |  | 0.0 | 50.2 | (50.2)
Mattress Firm | Intercompany Profit Elimination |  |  |  |
Business Combination [Line Items] |  |  |  |
Total adjustments to net income (loss) |  | (11.3) | 78.5 | (73.3)
Mattress Firm | Purchase Price Allocation Adjustments |  |  |  |
Business Combination [Line Items] |  |  |  |
Total adjustments to net income (loss) |  | 0.9 | 16.7 | (19.2)
Mattress Firm | Interest expense adjustments |  |  |  |
Business Combination [Line Items] |  |  |  |
Total adjustments to net income (loss) |  | (17.6) | (2.4) | (34.8)
Mattress Firm | Tax effect of Pro Forma Adjustments |  |  |  |
Business Combination [Line Items] |  |  |  |
Total adjustments to net income (loss) |  | $ 7.0 | $ (20.4) | $ 27.4

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