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Note 4 - Segment Reporting - Revenue and Other Segment Information (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Premiums Earned, Net | $ 302,140,000 | $ 286,471,000 | $ 249,295,000 | $ 277,415,000 | $ 301,486,000 | $ 281,185,000 | $ 299,166,000 | $ 263,512,000 | $ 1,115,321,000 | $ 1,145,349,000 | $ 1,014,007,000
Services Revenue, Net | 11,440,000 | 33,943,000 | 28,075,000 | 31,927,000 | 40,031,000 | 42,509,000 | 39,303,000 | 32,753,000 | 105,385,000 | 154,596,000 | 144,972,000
Net investment income (Note 6) | 38,115,000 | 36,255,000 | 38,723,000 | 40,944,000 | 41,432,000 | 42,756,000 | 43,761,000 | 43,847,000 | 154,037,000 | 171,796,000 | 152,475,000
Other income |  |  |  |  |  |  |  |  | 3,597,000 | 3,495,000 | 4,028,000
Add: Net gains (losses) on investments and other financial instruments | 17,376,000 | $ 17,652,000 | $ 47,276,000 | $ (22,027,000) | 4,257,000 | $ 13,009,000 | $ 12,540,000 | $ 21,913,000 | 60,277,000 | 51,719,000 | (42,476,000)
Total revenues |  |  |  |  |  |  |  |  | 1,438,617,000 | 1,526,955,000 | 1,273,006,000
Interest expense |  |  |  |  |  |  |  |  | 71,150,000 | 56,310,000 | 61,490,000
Allocation of corporate operating expenses (1) |  |  |  |  |  |  |  |  | 129,870,000 | 124,412,000 | 94,815,000
Accounts Receivable, after Allowance for Credit Loss | 121,294,000 |  |  |  | 93,630,000 |  |  |  | 121,294,000 | 93,630,000 |
Valuation Services |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Services Revenue, Net |  |  |  |  |  |  |  |  | 22,582,000 | 29,026,000 | 30,269,000
Title Services |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Services Revenue, Net |  |  |  |  |  |  |  |  | 23,266,000 | 14,185,000 | 5,512,000
Asset Management Services |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Services Revenue, Net |  |  |  |  |  |  |  |  | 29,841,000 | 30,846,000 | 42,839,000
Real Estate Agent Services |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Services Revenue, Net |  |  |  |  |  |  |  |  | 2,479,000 | 2,431,000 | 0
Mortgage Services |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Services Revenue, Net |  |  |  |  |  |  |  |  | 14,682,000 | 7,632,000 | 4,307,000
All Other Services |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Services Revenue, Net |  |  |  |  |  |  |  |  | 12,535,000 | 70,476,000 | 62,045,000
Intersegment Eliminations |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Premiums Earned, Net |  |  |  |  |  |  |  |  | 0 | 0 | 0
Services Revenue, Net |  |  |  |  |  |  |  |  | (1,439,000) | (1,440,000) | (1,650,000)
Net investment income (Note 6) |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other income |  |  |  |  |  |  |  |  | 0 | 0 | 0
Add: Net gains (losses) on investments and other financial instruments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total revenues |  |  |  |  |  |  |  |  | (1,439,000) | (1,440,000) | (1,650,000)
Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Premiums Earned, Net |  |  |  |  |  |  |  |  | 0 | 0 | 0
Services Revenue, Net |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net investment income (Note 6) |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other income |  |  |  |  |  |  |  |  | 247,000 | 0 | 0
Add: Net gains (losses) on investments and other financial instruments |  |  |  |  |  |  |  |  | 60,277,000 | 51,719,000 | (42,476,000)
Total revenues |  |  |  |  |  |  |  |  | 60,524,000 | 51,719,000 | (42,476,000)
Mortgage segment |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Premiums Earned, Net |  |  |  |  |  |  |  |  | 1,092,767,000 | 1,134,214,000 | 1,006,721,000
Services Revenue, Net |  |  |  |  |  |  |  |  | 14,765,000 | 8,134,000 | 4,968,000
Net investment income (Note 6) |  |  |  |  |  |  |  |  | 137,195,000 | 151,491,000 | 148,274,000
Other income |  |  |  |  |  |  |  |  | 2,816,000 | 2,798,000 | 2,214,000
Add: Net gains (losses) on investments and other financial instruments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total revenues |  |  |  |  |  |  |  |  | 1,247,543,000 | 1,296,637,000 | 1,162,177,000
Interest expense |  |  |  |  |  |  |  |  | 71,150,000 | 56,310,000 | 43,685,000
Depreciation |  |  |  |  |  |  |  |  | 9,815,000 | 13,770,000 | 14,714,000
Allocation of corporate operating expenses (1) |  |  |  |  |  |  |  |  | 114,802,000 | 104,078,000 | 80,135,000
Mortgage segment | Depreciation Expense |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Allocation of corporate operating expenses (1) |  |  |  |  |  |  |  |  | 2,600,000 | 1,600,000 | 500,000
Real Estate Segment |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Premiums Earned, Net |  |  |  |  |  |  |  |  | 22,554,000 | 11,976,000 | 7,286,000
Services Revenue, Net |  |  |  |  |  |  |  |  | 79,524,000 | 76,941,000 | 79,080,000
Net investment income (Note 6) |  |  |  |  |  |  |  |  | 361,000 | 680,000 | 373,000
Other income |  |  |  |  |  |  |  |  | 0 | 0 | 1,234,000
Add: Net gains (losses) on investments and other financial instruments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total revenues |  |  |  |  |  |  |  |  | 102,439,000 | 89,597,000 | 87,973,000
Interest expense |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation |  |  |  |  |  |  |  |  | 2,559,000 | 2,169,000 | 1,395,000
Allocation of corporate operating expenses (1) |  |  |  |  |  |  |  |  | 12,807,000 | 10,165,000 | 8,382,000
Accounts Receivable, after Allowance for Credit Loss | $ 18,800,000 |  |  |  | $ 10,800,000 |  |  |  | 18,800,000 | 10,800,000 |
Real Estate Segment | Depreciation Expense |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Allocation of corporate operating expenses (1) |  |  |  |  |  |  |  |  | 300,000 | 100,000 | 100,000
Mortgage and Real Estate Services Segment |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Bad debt expense |  |  |  |  |  |  |  |  | 0 | 0 | 0
Mortgage and Real Estate Services Segment | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Premiums Earned, Net |  |  |  |  |  |  |  |  | 1,115,321,000 | 1,146,190,000 | 1,014,007,000
Services Revenue, Net |  |  |  |  |  |  |  |  | 94,289,000 | 85,075,000 | 84,048,000
Net investment income (Note 6) |  |  |  |  |  |  |  |  | 137,556,000 | 152,171,000 | 148,647,000
Other income |  |  |  |  |  |  |  |  | 2,816,000 | 2,798,000 | 3,448,000
Add: Net gains (losses) on investments and other financial instruments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total revenues |  |  |  |  |  |  |  |  | 1,349,982,000 | 1,386,234,000 | 1,250,150,000
Interest expense |  |  |  |  |  |  |  |  | 71,150,000 | 56,310,000 | 43,685,000
Depreciation |  |  |  |  |  |  |  |  | 12,374,000 | 15,939,000 | 16,109,000
Allocation of corporate operating expenses (1) |  |  |  |  |  |  |  |  | 127,609,000 | 114,243,000 | 88,517,000
Mortgage and Real Estate Services Segment | Operating Segments | Depreciation Expense |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Allocation of corporate operating expenses (1) |  |  |  |  |  |  |  |  | 2,900,000 | 1,700,000 | 600,000
All Other activities segment |  |  |  |  |  |  |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |  |  |  |  |  |  |
Premiums Earned, Net |  |  |  |  |  |  |  |  | 0 | (841,000) | 0
Services Revenue, Net |  |  |  |  |  |  |  |  | 12,535,000 | 70,961,000 | 62,574,000
Net investment income (Note 6) |  |  |  |  |  |  |  |  | 16,481,000 | 19,625,000 | 3,828,000
Other income |  |  |  |  |  |  |  |  | 534,000 | 697,000 | 580,000
Add: Net gains (losses) on investments and other financial instruments |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total revenues |  |  |  |  |  |  |  |  | $ 29,550,000 | $ 90,442,000 | $ 66,982,000

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