Note 15 - Accumulated Other Comprehensive Income ("AOCI") (Details) - Components of Accumulated Other Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of January 1, 2015	$ 45,122	$ (64,982)
Other comprehensive income before reclassifications	5,834	(11,888)
Net current-period other comprehensive income	5,834	(11,888)
Balance as of March 31, 2015	50,956	(76,870)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of January 1, 2015	329	(90,977)
Other comprehensive income before reclassifications	(9,532)	(8,210)
Net current-period other comprehensive income	(9,532)	(8,210)
Balance as of March 31, 2015	(9,203)	(99,187)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of January 1, 2015	46,197	25,995
Other comprehensive income before reclassifications	15,718	(3,678)
Net current-period other comprehensive income	15,718	(3,678)
Balance as of March 31, 2015	61,915	22,317
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of January 1, 2015	(1,404)
Other comprehensive income before reclassifications	(352)
Net current-period other comprehensive income	(352)
Balance as of March 31, 2015	$ (1,756)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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