Note 14 - Other Comprehensive Income (Loss) Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
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	$ 3,328
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, Net of Tax	0	(27,305)	(519)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(7)	(21,040)	2,809
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	14,132	7,400	41,164
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	(9,272)	31,928	3,781
Net unrealized gain on investments, net of tax	4,860	39,328	44,945
Other Comprehensive Income (Loss), Net of Tax	4,853	18,288	47,754
Other Comprehensive Income (Loss) [Member]
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	5,065
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, before Tax	0	38,672	799
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	(11)	(32,407)	4,266
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax	21,743	7,400	63,329
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax	8,624	(47,448)	(5,817)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax	13,119	54,848	69,146
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent	13,108	22,441	73,412
Other Comprehensive Income (Loss), Tax [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Translation Gain (Loss) Arising During Period, Tax	(4)	0	1,737
Other Comprehensive Income (Loss), Foreign Currency Translation Reclassification Adjustment Realized upon Sale or Liquidation, Tax	0	11,367	280
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	(4)	(11,367)	1,457
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	7,611	0	22,165
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	(648)	(15,520)	(2,036)
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	8,259	15,520	24,201
Other Comprehensive Income (Loss), Tax	8,255	4,153	25,658
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	3,328
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, Net of Tax	0	(27,305)	(519)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(7)	(21,040)	2,809
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	14,132	7,400	41,164
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	(9,272)	31,928	3,781
Net unrealized gain on investments, net of tax	4,860	39,328	44,945
Other Comprehensive Income (Loss), Net of Tax	$ 4,853	$ 18,288	$ 47,754