Note 7 - Reinsurance Reinsurance Premiums Written and Earned (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Premiums Earned, Net [Abstract]
Net premiums earned-insurance		$ 221,800	$ 220,950
Mortgage Insurance Segment
Premiums Written, Net [Abstract]
Direct Premiums Written		239,645	233,926
Ceded Premiums Written	[1]	(14,980)	(207,616)
Net premiums written	[2]	224,665	26,310	[3]
Premiums Earned, Net [Abstract]
Direct Premiums Earned		236,062	240,330
Assumed Premiums Earned		7	9
Ceded Premiums Earned	[1]	(14,269)	(19,389)
Net premiums earned-insurance		$ 221,800	$ 220,950	[3]

[1] Net of profit commission.

[2] Net of ceded premiums written under the QSR Transactions and the Single Premium QSR Transaction. See Note 7 for additional information.

[3] Reflects changes to align our segment reporting structure with recent changes in personnel reporting lines and management oversight related to contract underwriting performed on behalf of third parties. Revenue and expenses for this business are now reflected in the Services segment. As a result, Services revenue, cost of services and other operating expenses have increased, with offsetting reductions in Mortgage Insurance other income and other operating expenses.