Note 12 - Properties and Equipment, Accrued Costs and Expenses, Other Current Liabilities and Other Liabilities - Summary of Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Pension liabilities	$ 29,832	$ 32,545
Liability for uncertain tax positions	44,876	48,577
Deferred tax liability	2,692	2,571
Other	10,324	14,704
Other Liabilities, Noncurrent, Total	$ 87,724	$ 98,397