Note 6 - Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, plant and equipment, gross	$ 2,821,172	$ 2,324,937
Less: Accumulated depreciation and amortization	(1,619,901)	(1,476,958)
Property, plant and equipment, net	1,201,271	847,979
Other Capitalized Property Plant and Equipment [Member]
Property, plant and equipment, gross	1,779,964	1,421,820
Equipment [Member]
Property, plant and equipment, gross	266,190	220,571
Furniture and Fixtures [Member]
Property, plant and equipment, gross	444,799	406,011
Building and Leasehold Improvements[Member]
Property, plant and equipment, gross	113,331	100,625
Software and Software Development Costs [Member]
Property, plant and equipment, gross	99,988	94,801
Construction in Progress [Member]
Property, plant and equipment, gross	93,352	69,163
Land [Member]
Property, plant and equipment, gross	13,361	11,946
Right-of-use Assets [Member]
Property, plant and equipment, gross	$ 10,187	$ 0

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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