Note 4 - Revenue - Future Performance Obligations (Details) $ in Thousands	Dec. 31, 2019 USD ($)
2020, Revenue from Leases	$ 56,114
2021, Revenue from Leases	55,017
2022, Revenue from Leases	44,262
2023, Revenue from Leases	35,289
2024, Revenue from Leases	18,141
Thereafter, Revenue from Leases	17,575
Revenue related to future performance obligation	117,650	[1]
Revenue from Leases	$ 226,398

[1] Excluded from the table is revenue that is either constrained or related to performance obligations that are wholly unsatisfied as of December 31, 2019.