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Note 8 - Reinsurance Effect of Reinsurance Programs (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Premiums Written, Net [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct Premiums Written |  |  |  |  |  |  |  |  |  | $ 1,132,338,000 |  | $ 1,089,720,000 |  | $ 1,032,735,000
Assumed Premiums Written |  |  |  |  |  |  |  |  |  | 10,379,000 | [1] | 6,901,000 | [1] | 25,000
Ceded Premiums Written | [2] |  |  |  |  |  |  |  |  | (56,132,000) |  | (98,314,000) |  | (214,343,000)
Net premiums written—insurance |  |  |  |  |  |  |  |  |  | 1,086,585,000 |  | 998,307,000 |  | 818,417,000
Premiums Earned, Net [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct Premiums Earned |  |  |  |  |  |  |  |  |  | 1,244,870,000 |  | 1,074,298,000 |  | 990,016,000
Assumed Premiums Earned |  |  |  |  |  |  |  |  |  | 10,382,000 | [1] | 6,904,000 | [1] | 28,000
Ceded Premiums Earned | [2] |  |  |  |  |  |  |  |  | (109,903,000) |  | (67,195,000) |  | (57,271,000)
Net premiums earned—insurance |  | $ 301,486,000 | $ 281,185,000 | $ 299,166,000 | $ 263,512,000 | $ 261,682,000 | $ 258,431,000 | $ 251,344,000 | $ 242,550,000 | 1,145,349,000 |  | 1,014,007,000 |  | 932,773,000
Ceded Credit Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ceding commissions earned | [3] |  |  |  |  |  |  |  |  | 48,659,000 |  | 33,446,000 |  | 26,896,000
Ceded losses |  |  |  |  |  |  |  |  |  | 5,859,000 |  | 5,086,000 |  | $ 3,261,000
Deferred ceding commissions |  | $ 74,800,000 |  |  |  | $ 91,400,000 |  |  |  | $ 74,800,000 |  | $ 91,400,000 |  |
[1] | Includes premiums earned from our participation in certain credit risk transfer programs.
[2] | Net of profit commission.
[3] | Deferred ceding commissions of $74.8 million and $91.4 million are included in other liabilities on our consolidated balance sheets at December 31, 2019 and 2018, respectively.

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