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Note 3 - Segment Reporting Adjusted Pretax Operating Income (Loss) (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |
Adjusted pretax operating income (loss) |  | $ (93,138,000) | $ 210,938,000 |  | $ 107,662,000 | $ 410,644,000 |
Net gains (losses) on investments and other financial instruments |  | 47,276,000 | 12,540,000 |  | 25,249,000 | 34,453,000 |
Amortization and impairment of other acquired intangible assets |  | (979,000) | (2,139,000) |  | (1,958,000) | (4,326,000) |
Impairment of other long-lived assets and other-non-operating items |  | (22,000) | 103,000 |  | (322,000) | (5,557,000) |
Consolidated pretax income (loss) |  | (42,224,000) | 209,545,000 |  | 139,069,000 | 425,681,000 |
Gain (Loss) on Extinguishment of Debt |  | 0 | (16,798,000) |  | 0 | (16,798,000) |
Mortgage segment |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |
Total Operating Expenses Allocated to Subsidiaries From Parent Company |  | 25,191,000 | 24,388,000 |  | 54,265,000 | 50,013,000 |
Depreciation |  | 3,112,000 | 3,849,000 |  | 6,824,000 | 7,711,000 |
Adjusted pretax operating income (loss) | [1] | (88,321,000) | 214,710,000 | [2] | 117,346,000 | 418,341,000 | [2]
Real Estate segment |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |
Total Operating Expenses Allocated to Subsidiaries From Parent Company |  | 3,339,000 | 2,659,000 |  | 7,175,000 | 5,454,000 |
Depreciation |  | 776,000 | 615,000 |  | 1,442,000 | 1,208,000 |
Adjusted pretax operating income (loss) | [3] | (4,817,000) | (3,772,000) |  | (9,684,000) | (7,697,000) |
All Other activities segment |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |
Adjusted pretax operating income (loss) |  | $ 4,639,000 | $ 4,901,000 |  | $ 8,438,000 | $ 7,265,000 |
[1] | Includes allocated corporate operating expenses and depreciation expense as follows:
| Three Months Ended June 30, |  |  |  | Six Months Ended June 30, |  |  |
(In thousands) | 2020 |  | 2019 |  | 2020 |  | 2019 |
Allocated corporate operating expenses | $ | 25,191 |  |  | $ | 24,388 |  |  | $ | 54,265 |  |  | $ | 50,013 |  |
Depreciation expense | 3,112 |  |  | 3,849 |  |  | 6,824 |  |  | 7,711 |  |
[2] | Includes a cumulative adjustment to unearned premiums recorded in the second quarter of 2019, as further described below.
[3] | Includes allocated corporate operating expenses and depreciation expense as follows:
| Three Months Ended June 30, |  |  |  | Six Months Ended June 30, |  |  |
(In thousands) | 2020 |  | 2019 |  | 2020 |  | 2019 |
Allocated corporate operating expenses | $ | 3,339 |  |  | $ | 2,659 |  |  | $ | 7,175 |  |  | $ | 5,454 |  |
Depreciation expense | 776 |  |  | 615 |  |  | 1,442 |  |  | 1,208 |  |
Our results for the second quarter of 2019 include a $32.9 million increase in net premiums earned and a $0.12 increase in net income per share due to a reduction in our unearned premiums, resulting from a cumulative adjustment related to an update to the amortization rates used to recognize revenue for Single Premium Policies. See Note 2 of Notes to Consolidated Financial Statements in our 2019 Form 10-K for additional information regarding this adjustment and our accounting policies for insurance premiums revenue recognition.

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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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