Note 19 - Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

	For the Years Ended December 31,
	2020		2019		2018
Cash Paid For:
Interest (net of amounts capitalized)	$	62,997	$	73,574	$	92,926
Income taxes	$	1,476	$	40,139	$	12,834