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Income Taxes Income Taxes - Provision for Income Taxes Charged To Income From Continuing Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Sep. 30, 2018 | Sep. 30, 2017
Provision for Income Taxes [Line Items] |  |  |  |  |  |
Current Federal Tax Expense (Benefit) | $ 0 | $ 0 |  |  | $ 0 | $ 0
Income (Loss) from Continuing Operations before Income Taxes, Domestic | (57,408) | 13,104 |  |  | (120,812) | 310,846
Current Income Tax Expense (Benefit) | 28,157 | 3,189 |  |  | 31,097 | 4,187
Deferred Foreign Income Tax Expense (Benefit) | 165 | (1,194) |  |  | (784) | 413
Deferred Income Tax Expense (Benefit) | 165 | (1,194) |  |  | (784) | 413
Income Tax Expense (Benefit) | 28,322 | 1,995 | $ 30,313 | $ 4,600 | 30,313 | 4,600
Income (Loss) from Continuing Operations before Income Taxes, Foreign | (42,699) | (6,796) |  |  | (20,505) | 3,771
Pre-tax income (loss) | (100,107) | 6,308 | $ (141,317) | $ 314,617 | (141,317) | 314,617
Current State and Local Tax Expense (Benefit) | 284 | 645 |  |  | (3,242) | 1,682
Current Foreign Tax Expense (Benefit) | $ 27,873 | $ 2,544 |  |  | $ 34,339 | $ 2,505

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