v3.26.1
Segment Reporting (Tables)
 6 Months Ended
Jun. 30, 2026
Segment Reporting [Abstract]  
Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated
Quarter Ended June 30,Six Months Ended June 30,
2026202520262025
Net sales by product line:
Food service$173.0 $166.1 $326.7 $317.5 
Folding carton132.5 147.6 257.3 296.0 
Sheeting and distribution37.1 39.9 76.1 78.7 
Pulp and other32.2 38.2 74.9 77.8 
Total net sales$374.8 $391.8 $735.1 $770.0 
Input cost (raw materials and energy)164.9 174.5 332.6 342.9 
Labor and overhead144.0 128.0 265.7 245.1 
Supply chain costs (principally freight)44.1 39.0 83.7 75.3 
Selling, general and administrative expenses19.9 24.4 39.5 52.8 
Depreciation and amortization23.2 23.5 46.6 45.0 
Interest expense, net5.1 3.9 10.0 7.3 
Non-significant expenses3.8 (7.0)3.6 3.8 
Income tax provision (benefit)(8.6)1.9 (12.3)0.1 
Income (loss) from continuing operations$(21.5)$3.6 $(34.3)$(2.3)