v3.25.2
Segment Information - Schedule of Segment Results from Continuing Operations (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Segment Reporting Information [Line Items]          
Net trade sales $ 1,058.0 $ 1,128.6 $ 2,080.1 $ 2,225.5  
Goodwill impairment (Note F)   675.3 0.0 675.3  
Segment EBIT 90.4 (614.3) 153.3 (551.3)  
Interest expense net of interest income (18.7) (20.0) (36.5) (40.6)  
Earnings (loss) before income taxes 71.7 (634.3) 116.8 (591.9)  
Chief Executive Officer          
Segment Reporting Information [Line Items]          
Employee benefits and share-based compensation   3.7   3.7  
Bedding Products          
Segment Reporting Information [Line Items]          
Goodwill impairment (Note F)   587.2   587.2 $ 0.7
Specialized Products          
Segment Reporting Information [Line Items]          
Net trade sales 304.1 319.6 604.2 635.5  
Goodwill impairment (Note F)   43.6   43.6  
Furniture, Flooring & Textile Products          
Segment Reporting Information [Line Items]          
Net trade sales 362.5 371.0 693.8 704.0  
Goodwill impairment (Note F)   44.5   44.5  
Trade sales          
Segment Reporting Information [Line Items]          
Net trade sales 1,064.7 1,139.4 2,094.5 2,245.6  
Depreciation and amortization 26.1 30.1 54.4 60.1  
Nonoperating assets depreciation and amortization 3.6 2.5 6.9 5.4  
Total depreciation and amortization 29.7 32.6 61.3 65.5  
Goodwill impairment (Note F)   675.3   675.3  
Restructuring, restructuring-related, and impairment charges (Note E) 3.6 11.2 10.5 22.0  
Gain on sale of real estate (18.4) (4.7) (21.6) (12.6)  
Gain from net insurance proceeds       (2.2)  
Other segment items 959.5 1,035.7 1,891.2 2,045.3  
Segment EBIT 90.3 (610.7) 153.1 (547.7)  
Trade sales | Reportable Subsegments          
Segment Reporting Information [Line Items]          
Net trade sales 1,058.0 1,128.6 2,080.1 2,225.5  
Trade sales | Intersubsegment Eliminations          
Segment Reporting Information [Line Items]          
Net trade sales 6.7 10.8 14.4 20.1  
Trade sales | Bedding Products          
Segment Reporting Information [Line Items]          
Net trade sales 396.6 444.5 792.5 898.9  
Depreciation and amortization 13.3 14.3 26.3 28.9  
Nonoperating assets depreciation and amortization 1.3 1.0 2.6 2.2  
Total depreciation and amortization 14.6 15.3 28.9 31.1  
Goodwill impairment (Note F)   587.2   587.2  
Restructuring, restructuring-related, and impairment charges (Note E) 2.1 9.9 5.5 19.2  
Gain on sale of real estate (16.7) (4.7) (16.7) (12.6)  
Gain from net insurance proceeds       0.0  
Other segment items 369.4 428.6 738.0 850.1  
Segment EBIT 27.2 (591.8) 36.8 (576.1)  
Trade sales | Bedding Products | Reportable Subsegments          
Segment Reporting Information [Line Items]          
Net trade sales 391.4 438.0 782.1 886.0  
Trade sales | Bedding Products | Intersubsegment Eliminations          
Segment Reporting Information [Line Items]          
Net trade sales 5.2 6.5 10.4 12.9  
Trade sales | Specialized Products          
Segment Reporting Information [Line Items]          
Net trade sales 304.2 320.9 604.5 637.2  
Depreciation and amortization 8.2 10.3 18.6 20.4  
Nonoperating assets depreciation and amortization 1.1 0.7 2.0 1.5  
Total depreciation and amortization 9.3 11.0 20.6 21.9  
Goodwill impairment (Note F)   43.6   43.6  
Restructuring, restructuring-related, and impairment charges (Note E) 0.6 1.3 4.0 1.3  
Gain on sale of real estate (1.7) 0.0 (1.7) 0.0  
Gain from net insurance proceeds       0.0  
Other segment items 257.3 274.5 514.5 556.2  
Segment EBIT 38.7 (9.5) 67.1 14.2  
Trade sales | Specialized Products | Reportable Subsegments          
Segment Reporting Information [Line Items]          
Net trade sales 304.1 319.6 604.2 635.5  
Trade sales | Specialized Products | Intersubsegment Eliminations          
Segment Reporting Information [Line Items]          
Net trade sales 0.1 1.3 0.3 1.7  
Trade sales | Furniture, Flooring & Textile Products          
Segment Reporting Information [Line Items]          
Net trade sales 363.9 374.0 697.5 709.5  
Depreciation and amortization 4.6 5.5 9.5 10.8  
Nonoperating assets depreciation and amortization 1.2 0.8 2.3 1.7  
Total depreciation and amortization 5.8 6.3 11.8 12.5  
Goodwill impairment (Note F)   44.5   44.5  
Restructuring, restructuring-related, and impairment charges (Note E) 0.9 0.0 1.0 1.5  
Gain on sale of real estate 0.0 0.0 (3.2) 0.0  
Gain from net insurance proceeds       (2.2)  
Other segment items 332.8 332.6 638.7 639.0  
Segment EBIT 24.4 (9.4) 49.2 14.2  
Trade sales | Furniture, Flooring & Textile Products | Reportable Subsegments          
Segment Reporting Information [Line Items]          
Net trade sales 362.5 371.0 693.8 704.0  
Trade sales | Furniture, Flooring & Textile Products | Intersubsegment Eliminations          
Segment Reporting Information [Line Items]          
Net trade sales 1.4 3.0 3.7 5.5  
Intersegment eliminations          
Segment Reporting Information [Line Items]          
Segment EBIT $ 0.1 $ (3.6) $ 0.2 $ (3.6)