Note 17 - Supplemental Disclosures to Condensed Consolidated Statements of Cash Flows - Supplemental Disclosures of Cash Flows Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Supplemental Disclosures of Cash Flow Information:
Interest	$ 220,198	$ 180,536	$ 141,527
Income taxes	226,959	81,949	7,297
Increase in assets in connection with merger		2,798,739
Liabilities assumed in connection with business combinations		2,028,332	3,659
Increase in secured project debt related to seller financed inventory purchases	25,124
Changes in inventories not owned	18,550	34,589	14,074
Changes in liabilities from inventories not owned	$ 18,550	$ 17,099	$ 14,074