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Note 14 - Accumulated Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Sep. 30, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The following table shows the rollforward of accumulated other comprehensive income (loss) as of the periods indicated:
| Three Months Ended September 30, 2019 |  | Nine Months Ended September 30, 2019
(In thousands) | Before Tax |  | Tax Effect |  | Net of Tax |  | Before Tax |  | Tax Effect |  | Net of Tax
Balance at beginning of period | $ | 111,977 |  |  | $ | 23,515 |  |  | $ | 88,462 |  |  | $ | (77,114 | ) |  | $ | (16,194 | ) |  | $ | (60,920 | )
Other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |
Unrealized gains (losses) on investments: |  |  |  |  |  |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | 51,460 |  |  | 10,806 |  |  | 40,654 |  |  | 241,363 |  |  | 50,686 |  |  | 190,677 |
Less: Reclassification adjustment for net gains (losses) included in net income (1) | 4,401 |  |  | 924 |  |  | 3,477 |  |  | 5,209 |  |  | 1,094 |  |  | 4,115 |
Net unrealized gains (losses) on investments | 47,059 |  |  | 9,882 |  |  | 37,177 |  |  | 236,154 |  |  | 49,592 |  |  | 186,562 |
Unrealized foreign currency translation adjustments | — |  |  | — |  |  | — |  |  | (4 | ) |  | (1 | ) |  | (3 | )
Other comprehensive income (loss) | 47,059 |  |  | 9,882 |  |  | 37,177 |  |  | 236,150 |  |  | 49,591 |  |  | 186,559 |
Balance at end of period | $ | 159,036 |  |  | $ | 33,397 |  |  | $ | 125,639 |  |  | $ | 159,036 |  |  | $ | 33,397 |  |  | $ | 125,639 |
| Three Months Ended September 30, 2018 |  | Nine Months Ended September 30, 2018
(In thousands) | Before Tax |  | Tax Effect |  | Net of Tax |  | Before Tax |  | Tax Effect |  | Net of Tax
Balance at beginning of period | $ | (73,345 | ) |  | $ | (15,402 | ) |  | $ | (57,943 | ) |  | $ | 32,669 |  |  | $ | 9,584 |  |  | $ | 23,085 |
Cumulative effect of adopting accounting standard updates | — |  |  | — |  |  | — |  |  | 284 |  |  | (2,664 | ) |  | 2,948 |
Balance adjusted for cumulative effect of adopting accounting standard updates | (73,345 | ) |  | (15,402 | ) |  | (57,943 | ) |  | 32,953 |  |  | 6,920 |  |  | 26,033 |
Other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |
Unrealized gains (losses) on investments: |  |  |  |  |  |  |  |  |  |  |
Unrealized holding gains (losses) arising during the period | (6,762 | ) |  | (1,421 | ) |  | (5,341 | ) |  | (118,719 | ) |  | (24,931 | ) |  | (93,788 | )
Less: Reclassification adjustment for net gains (losses) included in net income (1) | (5,120 | ) |  | (1,076 | ) |  | (4,044 | ) |  | (10,775 | ) |  | (2,263 | ) |  | (8,512 | )
Net unrealized gains (losses) on investments | (1,642 | ) |  | (345 | ) |  | (1,297 | ) |  | (107,944 | ) |  | (22,668 | ) |  | (85,276 | )
Unrealized foreign currency translation adjustments | — |  |  | — |  |  | — |  |  | 4 |  |  | 1 |  |  | 3 |
Other comprehensive income (loss) | (1,642 | ) |  | (345 | ) |  | (1,297 | ) |  | (107,940 | ) |  | (22,667 | ) |  | (85,273 | )
Balance at end of period | $ | (74,987 | ) |  | $ | (15,747 | ) |  | $ | (59,240 | ) |  | $ | (74,987 | ) |  | $ | (15,747 | ) |  | $ | (59,240 | )
______________________ (1) Included in net gains (losses) on investments and other financial instruments on our condensed consolidated statements of operations.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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