Note 14 - Accumulated Other Comprehensive Income Rollforward of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Other Comprehensive Income, Net of Tax [Abstract]
AOCI, Net of Tax, beginning balance					$ (18,477)
Unrealized holding gains (losses) arising during the period		$ 6,943	$ 4,012		86,614	$ (11,154)
Less: Reclassification adjustment for net gains (losses) included in net income		3,695	(223)		2,296	44,408
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment Continuing Operations, Net of Tax		3,248	4,235		84,318	(55,562)
Net foreign currency translation adjustments		(36)	(120)		(346)	(88)
Activity related to investments recorded as assets held for sale		0	0		0	(3,254)
Net actuarial gains (losses)		156	0		(22)	0
Other comprehensive income		3,368	4,115		83,950	(58,904)
AOCI, Net of Tax, ending balance		65,473			65,473
Other Comprehensive Income
Other Comprehensive Income, before Tax [Abstract]
AOCI before Tax, Attributable to Parent, beginning balance		95,548	(17,744)		(28,425)	79,208
Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax		10,682			133,253
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	[1]	5,685			3,533
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax		4,997			129,720
Unrealized Holding Gain (Loss) on Securities Arising Durling Period Continuing Operations, before Tax			6,172			(17,160)
Less: Reclassification Adjustment from AOCI for Sale of Securities Continuing Operations, before Tax	[1]		(343)	$ 68,700		68,320
Other Comprehensive Income (Loss), Before Tax, Unrealized Gains Losses on Investments Continuing Operations			6,515			(85,480)
Net foreign currency translation adjustments, before tax		(47)	(184)		(523)	(135)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax		240			(34)
Other Comprehensive Income (Loss), Before Tax, Unrealized Holding Gains (Losses) Arising During the Period on Investments Recorded as Assets Held for Sale, Net of Reclassification Adjustments	[2]		0			(5,006)
Other comprehensive income, before tax		5,190	6,331		129,163	(90,621)
AOCI before Tax, Attributable to Parent, ending balance		100,738	(11,413)	(17,744)	100,738	(11,413)
Other Comprehensive Income, Tax [Abstract]
AOCI, Tax, beginning balance		33,443	(6,210)		(9,948)	27,723
Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax		3,739			46,639
Less: Reclassification adjustment for net (losses) gains included in net income, tax	[1]	1,990			1,237
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax		1,749			45,402
Unrealized Holding Gain (Loss) on Securities Arising During Period Continuing Operations, Tax			2,160			(6,006)
Less: Reclassification adjustment for net gains (losses) included in net income related to continuing operations, Tax	[1]		(120)			23,912
Other Comprehensive Income (Loss), Available-for-sale Securities Continuing Operations, Tax			2,280			(29,918)
Net foreign currency translation adjustments, tax		(11)	(64)		(177)	(47)
Other Comprehensive Income (Loss), Tax Effect, Unrealized Gains (Losses) on Investments Recorded as Assets Held for Sale	[2]		0			(1,752)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Tax		84			(12)
Other Comprehensive Income, Tax		1,822	2,216		45,213	(31,717)
AOCI Tax, ending balance		35,265	(3,994)	(6,210)	35,265	(3,994)
Other Comprehensive Income, Net of Tax [Abstract]
AOCI, Net of Tax, beginning balance		62,105	(11,534)		(18,477)	51,485
Unrealized holding gains (losses) arising during the period		6,943			86,614
Less: Reclassification adjustment for net gains (losses) included in net income	[1]	3,695			2,296
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent		3,248			84,318
Unrealized holding gains (losses) arising during period continuing operations			4,012			(11,154)
Less: Reclassification adjustment for net gains (losses) included in net income for continuing operations	[1]		(223)			44,408
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment Continuing Operations, Net of Tax			4,235			(55,562)
Net foreign currency translation adjustments		(36)	(120)		(346)	(88)
Activity related to investments recorded as assets held for sale	[2]		0			(3,254)
Net actuarial gains (losses)		156			(22)
Other comprehensive income		3,368	4,115		83,950	(58,904)
AOCI, Net of Tax, ending balance		$ 65,473	$ (7,419)	$ (11,534)	$ 65,473	$ (7,419)

[1] Included in net gains (losses) on investments and other financial instruments on our unaudited condensed consolidated statements of operations. During the second quarter of 2015, we sold equity securities in our portfolio and reinvested the proceeds in assets that qualify as PMIERs-compliant Available Assets, recognizing pretax gains of $68.7 million.

[2] Represents the unrealized holding gains (losses) arising during the period on investments recorded as assets held for sale, net of reclassification adjustments for net gains (losses) included in income (loss) from discontinued operations, net of tax.