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Note 9 - Other Assets (Tables) | 12 Months Ended
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Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Schedule of Other Assets [Table Text Block] | The following table shows the components of other assets for the periods indicated:
| December 31,
(In thousands) | 2019 |  | 2018
Prepaid federal income taxes (Note 10) | $ | 134,800 |  |  | $ | — |
Company-owned life insurance | 105,721 |  |  | 83,377 |
Loaned securities (Note 6) | 66,442 |  |  | 27,860 |
Internal-use software (1) | 58,356 |  |  | 51,367 |
Right-of-use assets (2) | 37,866 |  |  | — |
Accrued investment income | 32,333 |  |  | 34,878 |
Property and equipment (3) | 29,523 |  |  | 37,090 |
Assets held for sale (4) | 24,908 |  |  | — |
Deferred policy acquisition costs | 20,759 |  |  | 17,311 |
Reinsurance recoverables | 16,976 |  |  | 14,402 |
Unbilled receivables | 13,772 |  |  | 19,917 |
Current federal income tax receivable (5) | — |  |  | 44,506 |
Other | 26,163 |  |  | 36,992 |
Total other assets | $ | 567,619 |  |  | $ | 367,700 |
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(1) | Internal-use software, at cost, has been reduced by accumulated amortization of $73.5 million and $60.3 million at December 31, 2019 and 2018, respectively, as well as $3.8 million of impairment charges in 2019 and $5.1 million of impairment charges in 2018. Amortization expense was $13.0 million, $11.4 million and $10.7 million for the years ended December 31, 2019, 2018 and 2017, respectively.
(2) | Represents right-of-use assets recognized as a result of our adoption, as of January 1, 2019, of the new accounting and
disclosure requirements for leases of property, plant and equipment. See Note 2 for additional information. Right-of-use assets are shown less accumulated amortization of $8.5 million at December 31, 2019.
(3) | Property and equipment at cost, less accumulated depreciation of $68.4 million and $62.9 million at December 31, 2019 and 2018, respectively. Depreciation expense was $7.8 million, $8.0 million and $6.9 million for the years ended December 31, 2019, 2018 and 2017, respectively.
(4) | Related to the sale of Clayton. See Notes 4 and 7 for additional information on assets held for sale. Liabilities held for sale at December 31, 2019 are included in other liabilities on our consolidated balance sheets.
(5) During the year ended December 31, 2019, current federal income tax receivable was reduced by our receipt of the remaining $57.2 million refund from amounts on deposit with the IRS related to the settlement of the IRS Matter.

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