Note 7 - Reinsurance Net Premiums Written and Earned, Insurance (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jun. 30, 2019		Jun. 30, 2018	Jun. 30, 2019		Jun. 30, 2018
Premiums Written, Net [Abstract]
Direct Premiums Written		$ 279,991		$ 284,713	$ 541,022		$ 541,312
Assumed Premiums Written	[1]	2,475		1,504	4,920		2,816
Ceded Premiums Written	[2]	(14,289)		(31,883)	(24,445)		(51,814)
Net premiums written—insurance		268,177		254,334	521,497		492,314
Premiums Earned, Net [Abstract]
Direct Premiums Earned		333,791	[3]	266,512	614,014	[3]	523,943
Assumed Premiums Earned	[1]	2,481		1,510	4,931		2,828
Ceded Premiums Earned	[2]	(37,106)	[3]	(16,678)	(56,267)	[3]	(32,877)
Net premiums earned—insurance		299,166	[3]	251,344	562,678	[3]	493,894
QSR and Single Premium QSR Programs | Reinsurer Concentration Risk
Ceded Credit Risk [Line Items]
Ceding Commissions Earned		16,353	[3]	8,539	25,038	[3]	17,355
Ceded losses		$ 1,868		$ 1,019	$ 3,555		$ 2,165

[1] Includes premiums earned from our participation in certain Front-end and Back-end credit risk transfer programs.

[2] Net of profit commission.

[3] Includes a cumulative adjustment to unearned premiums recorded in the second quarter of 2019 related to an update to the amortization rates used to recognize revenue for Single Premium Policies. See Note 3 for further information.