Note 15 - Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Interest expense, net	$ (333)	$ (465)
Tax benefit	117	163
Amounts reclassified from accumulated other comprehensive loss	(216)	(302)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Cost of goods sold, selling, general, and administrative expenses	(1,295)	(802)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Selling, general and administrative expenses	$ (52)	(50)
Accumulated Defined Benefit Plans, Adjustment Gain (Loss) On Voluntary Settlement [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Loss on voluntary settlement		(7,170)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Tax benefit	$ 431	278
Amounts reclassified from accumulated other comprehensive loss	(916)	(7,744)
Total before tax	(1,347)	(8,022)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Amounts reclassified from accumulated other comprehensive loss	(1,954)	(4,400)
Release of currency translation adjustment	(1,954)
Release of currency translation adjustment		(4,400)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Amounts reclassified from accumulated other comprehensive loss	(3,086)	(12,446)
Interest expense, net	(1,699)	(2,174)
Tax benefit	(32,389)	12,627
Amounts reclassified from accumulated other comprehensive loss	57,217	57,303
Selling, general and administrative expenses	$ 57,867	52,489
Loss on voluntary settlement		(7,170)
Total before tax	$ 89,565	$ 45,506
Release of currency translation adjustment	$ 15,573
Release of currency translation adjustment		$ (4,623)