Note 17 - Supplemental Disclosure to Consolidated Statements of Cash Flows (Details) - Supplemental Disclosures to Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash paid during the period for:
Interest	$ 180,536	$ 141,527	$ 128,061
Income taxes	81,949	7,297	3,792
Supplemental Disclosure of Noncash Activities:
Increase in assets in connection with merger	2,798,739
Liabilities assumed in connection with business combinations	2,028,332	3,659	4,983
Changes in inventories not owned	34,589	14,074	1,171
Changes in liabilities from inventories not owned	$ 17,099	$ 14,074	$ 1,171