Note 12 - Other Liabilities Components of Other Liabilities (Details) - USD ($) $ in Thousands		Mar. 31, 2019		Dec. 31, 2018
Other Liabilities [Abstract]
FHLB advances		$ 108,532		$ 82,532
Deferred ceding commission		88,110		91,400
Lease liability		70,927	[1]	0
Payable for securities	[2]	35,981		7,949
Current federal income taxes		25,245		0
Accrued compensation		19,112		61,452
Amount payable on the return of cash collateral under securities lending agreements (2)	[3]	6,233		11,699
Other		65,330		78,627
Total other liabilities		$ 419,470		$ 333,659

[1] Classified in other liabilities in our condensed consolidated balance sheets.

[2] Represents the payable for purchases of securities that have not yet settled as of the balance sheet date.

[3] Amounts payable on the return of cash collateral under securities lending agreements are classified as other liabilities in our condensed consolidated balance sheets. See Note 5 for additional information.