Note 10 - Leases - Maturities of Lease Liabilities (Details) $ in Thousands	Mar. 31, 2019 USD ($)
2019 (a)	$ 17,372	[1]
2019 (a)	9,229	[1]
2020	19,995
2020	10,889
2021	15,538
2021	8,820
2022	11,819
2022	7,687
2023	5,899
2023	6,341
2024 and beyond	5,571
2024 and beyond	26,766
Total lease payments	76,195
Total lease payments	69,732
Less: Imputed interest	(6,539)
Less: Imputed interest	(16,458)
Present value of lease liabilities	69,656
Present value of lease liabilities	$ 53,274

[1] Excluding the three months ended March 31, 2019