v3.26.1
CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Current assets:    
Cash and cash equivalents $ 26.6 $ 33.2
Restricted cash 2.5 3.8
Accounts and other receivables, net 393.3 287.8
Inventories, net 498.3 628.6
Prepaid expenses and other 21.9 41.1
Total current assets 942.6 994.5
Other assets:    
Restricted cash 5.4 5.5
Marketable securities 2.1 1.8
Operating lease right-of-use assets 19.2 19.9
Deferred income taxes 29.7 35.8
Goodwill 2.6 2.6
Other 34.8 32.4
Total other assets 93.8 98.0
Property and equipment:    
Land 78.3 79.3
Buildings 271.8 279.8
Equipment 1,435.9 1,459.1
Mining properties 139.0 134.2
Construction in progress 49.6 44.5
Gross property and equipment 1,974.6 1,996.9
Less accumulated depreciation and amortization 1,267.0 1,272.6
Net property and equipment 707.6 724.3
Total assets 1,744.0 1,816.8
Current liabilities:    
Accounts payable and accrued liabilities 282.2 354.4
Income taxes 3.6 14.4
Total current liabilities 285.8 368.8
Noncurrent liabilities:    
Long-term debt (including affiliate debt of $53.7 at each period) 569.6 557.4
Accrued pension costs 73.7 80.9
Operating lease liabilities 15.1 15.7
Deferred income taxes 16.0 15.2
Other 32.8 27.7
Total noncurrent liabilities 707.2 696.9
Stockholders' equity:    
Common stock 1.2 1.2
Additional paid-in capital 1,390.8 1,390.4
Retained deficit (346.0) (344.9)
Accumulated other comprehensive loss (295.0) (295.6)
Total stockholders' equity 751.0 751.1
Total liabilities and stockholders' equity $ 1,744.0 $ 1,816.8