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Income Taxes (Summary Of Provision For Income Taxes) (Details) - USD ($) $ in Thousands | 1 Months Ended | 2 Months Ended | 3 Months Ended | 7 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Aug. 14, 2015 | Sep. 30, 2015 | Sep. 30, 2016 | Aug. 14, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Predecessor |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Tax (benefit) expense | $ 5,234 |  |  | $ 6,452 |  |
Pretax loss | $ (30,097) |  |  | $ (95,518) |  |
Effective tax rates | (17.40%) | (25.60%) |  | (6.80%) |  |
Successor |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Tax (benefit) expense |  | $ 1,107 | $ (1,789) |  | $ (7,675) |
Pretax loss |  | $ (4,329) | $ (25,890) |  | $ (87,847) | $ (4,329)
Effective tax rates |  |  | 6.90% |  | 8.70% | (25.60%)

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- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51673353&loc=d3e41242-110953 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 5 + Details
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