Note 13 - Notes Payable - Repaid Notes (Details) - Senior Note 1 [Member] $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($)	[1]
Amount Repaid	$ 484.9
Interest Rate	3.20%

[1] The Company incurred a prepayment charge of $7.5 million, which is included in Early extinguishment of debt charges on the Company's Consolidated Statements of Income.