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Note 8 - Other Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Deposit with the IRS (Note 9) |  | $ 88,557 |  | $ 88,557 |  | $ 88,557
Corporate-owned life insurance |  | 84,981 |  | 84,981 |  | 83,248
Property and equipment | [1],[2] | 87,541 |  | 87,541 |  | 70,665
Accrued investment income |  | 29,348 |  | 29,348 |  | 29,255
Deferred policy acquisition costs |  | 14,350 |  | 14,350 |  | 14,127
Reinsurance recoverables |  | 7,523 |  | 7,523 |  | 7,368
Other |  | 65,055 |  | 65,055 |  | 50,615
Total other assets |  | 377,355 |  | 377,355 |  | 343,835
Property and Equipment, Owned, Accumulated Depreciation |  | 126,800 |  | 126,800 |  | 118,500
Depreciation |  | 4,100 | $ 2,400 | 8,300 | $ 4,700 |
Technology Upgrade Related Costs [Member] |  |  |  |  |  |
Property and equipment |  | 47,000 |  | 47,000 |  | $ 49,700
Leasehold Improvements [Member] |  |  |  |  |  |
Property and equipment |  | $ 15,600 |  | $ 15,600 |  |
[1] | Includes $47.0 million and $49.7 million at June 30, 2017 and December 31, 2016, respectively, related to our technology upgrade project and $15.6 million at June 30, 2017 of leasehold improvements related to our new corporate headquarters.
[2] | Property and equipment at cost, less accumulated depreciation of $126.8 million and $118.5 million at June 30, 2017 and December 31, 2016, respectively. Depreciation expense was $4.1 million and $2.4 million for the three-month periods ended June 30, 2017 and 2016, respectively, and $8.3 million and $4.7 million for the six-month periods ended June 30, 2017 and 2016, respectively.

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