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v3.19.1

Equity Method Investments (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Equity method investments and financing receivables | $ 48.4 |  | $ 45.9
Income (Loss) from Equity Method Investments | 3.5 | $ 22.0 |
Depreciation, depletion and amortization and asset retirement obligation expenses | 172.5 | 169.6 |
Net interest expense | 35.8 | 36.3 |
Income tax provision | 18.8 | 10.1 |
Middlemount Mine |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Income (Loss) from Equity Method Investments | $ 3.8 | 22.2 |
Equity method investment, ownership percentage | 50.00% |  |
Depreciation, depletion and amortization and asset retirement obligation expenses | $ 3.6 | 3.9 |
Net interest expense | 2.2 | 3.6 |
Income tax provision | 1.7 | 5.1 |
Middlemount Mine | Financing Receivable |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing receivable, cash received from equity Interest | $ 1.1 | $ 35.8 |

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