v3.26.1
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Cash Flows From Operating Activities    
Net (loss) income $ (25.6) $ 38.0
Loss from discontinued operations, net of income taxes 0.2 0.3
(Loss) income from continuing operations, net of income taxes (25.4) 38.3
Adjustments to reconcile (loss) income from continuing operations, net of income taxes to net cash provided by operating activities:    
Depreciation, depletion and amortization 109.5 92.1
Noncash interest expense, net 1.4 1.6
Deferred income taxes (22.8) (3.9)
Noncash share-based compensation 5.4 2.7
Net gain on disposals (11.7) (5.2)
Loss from equity affiliates 5.7 6.7
Unrealized gains on foreign currency option contracts (0.3) (4.3)
Changes in current assets and liabilities:    
Accounts receivable 11.9 84.5
Inventories (22.3) (24.6)
Other current assets (12.7) 37.4
Accounts payable and accrued expenses (3.1) (89.7)
Collateral arrangements (0.5) (0.4)
Asset retirement obligations 1.6 1.3
Postretirement benefit obligations (3.3) (11.4)
Pension obligations 0.4 (4.9)
Other, net (3.2) 0.3
Net cash provided by continuing operations 30.6 120.5
Net cash used in discontinued operations (0.6) (0.6)
Net cash provided by operating activities 30.0 119.9
Cash Flows From Investing Activities    
Additions to property, plant, equipment and mine development (85.4) (70.4)
Changes in accrued expenses related to capital expenditures (37.1) (38.6)
Proceeds from disposal of assets, net of receivables 5.4 7.2
Contributions to joint ventures (165.6) (138.3)
Distributions from joint ventures 160.2 150.8
Other, net (1.0) (0.3)
Net cash used in investing activities (123.5) (89.6)
Cash Flows From Financing Activities    
Repayments of long-term debt (2.4) (2.8)
Payment of debt issuance and other deferred financing costs 0.0 (1.7)
Repurchase of employee common stock relinquished for tax withholding (3.3) (0.8)
Dividends paid (9.2) (9.1)
Distributions to noncontrolling interests (7.7) (14.7)
Net cash used in financing activities (22.6) (29.1)
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation    
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation, Beginning Balance 1,284.5 1,382.6
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation, Ending Balance 1,168.4 1,383.8
Cash and cash equivalents 492.5  
Restricted Cash 675.9  
Net change in cash, cash equivalents and restricted cash $ (116.1) $ 1.2