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Note 3 - Segment Reporting Reconciliation of Segment to Consolidated Results Pretax (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |
Adjusted pretax operating income (loss) |  | $ 196,699 | $ 155,619 | $ 551,811 | $ 444,636 |
Net gains (losses) on investments and other financial instruments |  | (4,480) | 2,480 | (30,771) | 4,960 |
Loss on induced conversion and debt extinguishment |  | 0 | (45,766) | 0 | (51,469) |
Acquisition-related (expenses) benefits | [1] | (2) | (54) | (418) | (126) |
Impairment of goodwill |  | 0 | 0 | 0 | (184,374) |
Amortization and impairment of other acquired intangible assets |  | (3,472) | (2,890) | (8,968) | (25,042) |
Impairment of other long-lived assets and loss from the sale of a business line | [2] | (4,057) | (6,575) | (3,953) | (6,575) |
Consolidated pretax income (loss) |  | 184,688 | 102,814 | 507,701 | 182,010 |
Mortgage Insurance Segment |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |
Adjusted pretax operating income (loss) | [3] | 204,620 | 168,508 | 573,771 | 473,502 |
Mortgage and Real Estate Services Segment |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |
Adjusted pretax operating income (loss) | [3] | $ (7,921) | $ (12,889) | (21,960) | $ (28,866) |
Impairment of goodwill |  |  |  | $ 0 |  | $ (184,374)
[1] | Acquisition-related expenses represent expenses incurred to effect the acquisition of a business, net of adjustments to accruals previously recorded for acquisition expenses.
[2] | Included within restructuring and other exit costs. See Note 1.
[3] | Includes inter-segment expenses and revenues as listed in the notes to the preceding tables.

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- Definition This concept represents the gains and losses on investments and other financial instruments for the period excluding the impact of changes in the present value of insurance claims and recoveries on insured credit derivatives and VIEs, based on the company's ongoing insurance loss monitoring, which are a component of segment expenses. Also includes other than temporarily impaired losses recognized in earnings. + References No definition available. + Details
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