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Note 8 - Other Assets (Tables) | 3 Months Ended
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Mar. 31, 2018
Other Assets [Abstract] |
Schedule of Other Assets [Table Text Block] | The following table shows the components of other assets as of the dates indicated:
(In thousands) | March 31, 2018 |  | December 31, 2017
Deposit with the IRS (Note 9) | $ | 88,557 |  |  | $ | 88,557 |
Property and equipment (1) | 87,332 |  |  | 87,042 |
Corporate-owned life insurance | 84,622 |  |  | 85,862 |
Loaned securities | 44,396 |  |  | 27,964 |
Accrued investment income | 33,542 |  |  | 31,389 |
Unbilled receivables | 20,949 |  |  | 22,257 |
Deferred policy acquisition costs | 16,026 |  |  | 16,987 |
Reinsurance recoverables | 12,587 |  |  | 8,492 |
Other | 38,762 |  |  | 39,299 |
Total other assets | $ | 426,773 |  |  | $ | 407,849 |
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(1) | Property and equipment at cost, less accumulated depreciation of $112.1 million and $106.0 million at March 31, 2018 and December 31, 2017, respectively. Depreciation expense was $4.7 million and $4.1 million for the three-month periods ended March 31, 2018 and 2017, respectively.

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- Definition Tabular disclosure of the carrying amounts of other assets. This disclosure includes other current assets and other noncurrent assets. + References No definition available. + Details
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