Note 16 - Accumulated Other Comprehensive Loss - Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Selling, general and administrative expenses									$ 60,422	$ 57,867	$ 52,489
Total before tax									127,539	89,565	45,506
Tax benefit									(40,214)	(32,389)	12,627
Amounts reclassified from accumulated other comprehensive loss	$ 37,384	$ 9,218	$ 20,494	$ 14,582	$ 17,814	$ 11,747	$ 19,663	$ 7,993	81,678	57,217	57,303
Restructuring Charges									1,158	15,573
Interest expense, net									(717)	(1,699)	$ (2,174)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Amounts reclassified from accumulated other comprehensive loss									(878)	(3,086)
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									(1,152)	(1,295)
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)	(52)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Total before tax									(1,204)	(1,347)
Tax benefit									397	431
Amounts reclassified from accumulated other comprehensive loss									(807)	(916)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Amounts reclassified from accumulated other comprehensive loss									(71)	(1,954)
Restructuring Charges									(71)	(1,954)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Tax benefit										117
Amounts reclassified from accumulated other comprehensive loss										(216)
Interest expense, net										$ (333)