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Note 3 - Segment Reporting Revenue (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Revenue Non GAAP Basis |  | $ 368,434,000 | $ 335,932,000 | $ 1,094,621,000 |  | $ 974,957,000 |
Net gains (losses) on investments and other financial instruments |  | 13,009,000 | (4,480,000) | 47,462,000 |  | (30,771,000) |
Revenues |  | 380,338,000 | 330,686,000 | 1,138,931,000 |  | 941,533,000 |
Unbilled Contracts Receivable |  | 25,110,000 |  | 25,110,000 |  |  | $ 19,917,000
Mortgage Insurance Segment |  |  |  |  |  |  |
Revenue Non GAAP Basis |  | 321,056,000 | 295,031,000 | 968,215,000 | [1] | 859,380,000 |
Mortgage and Real Estate Services Segment |  |  |  |  |  |  |
Revenue Non GAAP Basis |  | 47,378,000 | 40,901,000 | 126,406,000 |  | 115,577,000 |
Inter-segment revenues | [2] | 1,105,000 | 766,000 | 3,152,000 |  | 2,653,000 |
Sales Revenue, Services and Other, Net |  | 42,509,000 | 36,566,000 | 114,565,000 |  | 106,558,000 |
Accounts Receivable, Credit Loss Expense (Reversal) |  | 0 | 0 | 0 |  | 0 |
Accounts Receivable, after Allowance for Credit Loss |  | 18,956,000 |  | 18,956,000 |  |  | 15,461,000
Unbilled Contracts Receivable |  | 25,110,000 |  | 25,110,000 |  |  | 19,917,000
Deferred Revenue |  | 3,036,000 |  | 3,036,000 |  |  | $ 3,204,000
Mortgage Services | Mortgage and Real Estate Services Segment |  |  |  |  |  |  |
Sales Revenue, Services and Other, Net |  | 19,218,000 | 18,839,000 | 51,531,000 |  | 55,552,000 |
Real Estate Services | Mortgage and Real Estate Services Segment |  |  |  |  |  |  |
Sales Revenue, Services and Other, Net |  | 17,865,000 | 15,984,000 | 50,640,000 |  | 44,948,000 |
Title Services | Mortgage and Real Estate Services Segment |  |  |  |  |  |  |
Sales Revenue, Services and Other, Net |  | $ 5,426,000 | $ 1,743,000 | $ 12,394,000 |  | $ 6,058,000 |
[1] | Includes a cumulative adjustment to unearned premiums recorded in the second quarter of 2019 related to an update to the amortization rates used to recognize revenue for Single Premium Policies, as further described above.
[2] | Inter-segment revenues included in the Services segment.

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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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- Definition This concept represents the amount of revenue that is used in the calculation of adjusted pre-tax operating income (loss) for segment reporting (non GAAP) and only includes the revenue items that management considers in assessing the performance of the segment businesses. + References No definition available. + Details
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