Note 12 - Accumulated Other Comprehensive Income Rollforward of Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 16,095
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	0		(7)		6,265
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, Net of Tax	0		0		27,305
Net foreign currency translation adjustments	0		(7)		(21,040)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	21,969		14,132		7,400
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	879		9,272		(31,928)
Net unrealized gains on investments	21,090		4,860		39,328
Other comprehensive income	21,090		4,853		18,288
Net actuarial gain (loss)	0
Accumulated Other Comprehensive Income (Loss), Net of Tax	37,383		16,095
Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), before Tax	24,904		12,039		(10,038)
Accumulated Other Comprehensive Income, Tax (Benefit)	8,809		639		(3,514)
Accumulated Other Comprehensive Income (Loss), Net of Tax	16,095		11,400		(6,524)
Other Comprehensive Income (Loss), before Tax [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax			(11)		6,265
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, before Tax			0		38,672
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax			(11)		(32,407)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax	33,799		21,743		7,400
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax	1,663	[1]	8,624	[1]	(47,448)	[1]
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax	32,136		13,119		54,848
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	32,136		13,108		22,441
Net actuarial gain (loss), before Tax	305		(243)		(364)
Other Comprehensive Income (Loss), Tax [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Translation Gain (Loss) Arising During Period, Tax			(4)		0
Other Comprehensive Income (Loss), Foreign Currency Translation Reclassification Adjustment Realized upon Sale or Liquidation, Tax			0		11,367
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax			(4)		(11,367)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	11,830		7,611		0
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	784	[1]	(648)	[1]	(15,520)	[1]
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	11,046		8,259		15,520
Other Comprehensive Income (Loss), Tax	11,046		8,255		4,153
Net actuarial gain (loss), Tax	107		(85)		0
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax			(7)		6,265
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, Net of Tax			0		27,305
Net foreign currency translation adjustments			(7)		(21,040)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	21,969		14,132		7,400
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	879	[1]	9,272	[1]	(31,928)	[1]
Net unrealized gains on investments	21,090		4,860		39,328
Other comprehensive income	21,090		4,853		18,288
Net actuarial gain (loss)	198		(158)		(364)
Accumulated Other Comprehensive Income (Loss), before Tax	57,345		24,904		12,039
Accumulated Other Comprehensive Income, Tax (Benefit)	19,962		8,809		639
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 37,383		$ 16,095		$ 11,400

[1] Included in net (losses) gains on investments on our consolidated statements of operations.