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Note 3 - Segment Reporting Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |  |  |  |
Goodwill, Impairment Loss |  | $ 0 | $ (184,374) | $ 0 | $ (184,374) |
Net premiums earned-insurance |  | 251,344 | 229,096 | 493,894 | 450,896 |
Services revenue |  | 36,828 | 37,802 | 69,992 | 75,829 |
Net investment income |  | 37,473 | 30,071 | 71,429 | 61,103 |
Other income |  | 1,016 | 612 | 1,823 | 1,358 |
Policy acquisition costs |  | 5,996 | 6,123 | 13,113 | 12,852 |
Cost of services |  | 24,205 | 25,635 | 47,331 | 54,010 |
Other operating expenses before corporate allocations |  | 70,184 | 68,750 | 133,427 | 137,127 |
Restructuring and other exit costs |  | 925 | 0 | 1,476 | 0 |
Adjusted pretax operating income (loss) |  | 191,009 | 163,736 | 355,112 | 289,017 |
Net gains (losses) on investments and other financial instruments |  | (7,404) | 5,331 | (26,291) | 2,480 |
Total assets |  | 6,139,488 |  | 6,139,488 |  | $ 5,900,881
Mortgage Insurance Segment [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net premiums written—insurance | [1] | 251,958 | 241,307 | 489,938 | 465,972 |
(Increase) decrease in unearned premiums |  | (2,990) | (12,211) | 1,580 | (15,076) |
Net premiums earned-insurance |  | 248,968 | 229,096 | 491,518 | 450,896 |
Net investment income |  | 37,447 | 30,071 | 71,403 | 61,103 |
Other income |  | 621 | 612 | 1,428 | 1,358 |
Total | [2] | 287,036 | 259,779 | 564,349 | 513,357 |
Provision for losses |  | 19,362 | 17,714 | 56,753 | 64,946 |
Policy acquisition costs |  | 5,996 | 6,123 | 13,113 | 12,852 |
Other operating expenses before corporate allocations |  | 33,262 | 37,939 | 65,150 | 77,228 |
Total | [3] | 58,620 | 61,776 | 135,016 | 155,026 |
Adjusted pretax operating income (loss) before corporate allocations |  | 228,416 | 198,003 | 429,333 | 358,331 |
Allocation of corporate operating expenses |  | 20,136 | 15,894 | 38,713 | 30,080 |
Allocation of interest expense |  | 10,840 | 11,748 | 21,469 | 23,257 |
Adjusted pretax operating income (loss) | [4] | 197,440 | 170,361 | 369,151 | 304,994 |
Inter-segment expenses |  |  |  | 1,887 | 4,235 |
Inter-segment revenues |  | 885 | 2,173 |  |  |
Total assets |  | 5,949,845 |  | 5,949,845 |  | 5,733,918
Mortgage and Real Estate Services Segment [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Goodwill, Impairment Loss |  |  |  | 0 |  | (184,374)
Net premiums earned-insurance | [5] | 2,376 | 0 | 2,376 | 0 |
Services revenue | [6] | 37,713 | 39,975 | 71,879 | 80,064 |
Net investment income | [5] | 26 | 0 | 26 | 0 |
Other income | [5] | 395 | 0 | 395 | 0 |
Total | [6] | 40,510 | 39,975 | 74,676 | 80,064 |
Provision for losses | [5] | 53 | 0 | 53 | 0 |
Cost of services |  | 24,357 | 25,962 | 47,627 | 54,652 |
Other operating expenses before corporate allocations |  | 14,015 | 12,803 | 24,759 | 25,407 |
Restructuring and other exit costs | [7] | 1,055 | 0 | 1,580 | 0 |
Total |  | 39,480 | 38,765 | 74,019 | 80,059 |
Adjusted pretax operating income (loss) before corporate allocations |  | 1,030 | 1,210 | 657 | 5 |
Allocation of corporate operating expenses |  | 3,010 | 3,404 | 5,794 | 7,122 |
Allocation of interest expense |  | 4,451 | 4,431 | 8,902 | 8,860 |
Adjusted pretax operating income (loss) | [4] | (6,431) | (6,625) | (14,039) | (15,977) |
Inter-segment revenues |  | 885 | $ 2,173 | 1,887 | $ 4,235 |
Total assets |  | 189,643 |  | 189,643 |  | $ 166,963
Investments and Cash |  | 0 |  | 0 |  |
Senior Notes [Member] | Senior Notes Due 2019 [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 300,000 |  | $ 300,000 |  |
[1] | Net of ceded premiums written under the QSR Program and the Single Premium QSR Program. See Note 7 for additional information.
[2] | Excludes net losses on investments and other financial instruments of $7.4 million and $26.3 million for the three and six months ended June 30, 2018, and net gains on investments and other financial instruments of $5.3 million and $2.5 million for the three and six months ended June 30, 2017, not included in adjusted pretax operating income.
[3] | Includes inter-segment expenses as follows: Three Months EndedJune 30, Six Months EndedJune 30,(In thousands)2018 2017 2018 2017Inter-segment expenses$885 $2,173 $1,887 $4,235
[4] | Includes inter-segment expenses and revenues as listed in the notes to the preceding tables.
[5] | Results from inclusion of the operations of EnTitle Direct, a national title insurance and settlement services company, acquired in March 2018.
[6] | Includes inter-segment revenues as follows: Three Months EndedJune 30, Six Months EndedJune 30,(In thousands)2018 2017 2018 2017Inter-segment revenues$885 $2,173 $1,887 $4,235
[7] | Does not include impairment of long-lived assets and loss from the sale of a business line, which is not a component of adjusted pretax operating income.

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