Note 13 - Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating lease cost	$ 7,259	$ 7,540
Amortization of right-of-use assets	327	484
Interest on lease liabilities	43	28
Total finance lease cost	370	512
Operating cash flows from operating leases	7,183	7,563
Operating cash flow from finance leases	43	28
Financing cash flows from finance leases	116	653
Operating leases	13,558	76,983
Finance lease	$ 0	$ 0