Note 6 - Leases - Operating Lease Liabilities (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Three months ended December 31, 2019	$ 4,890
2020	17,684
2021	15,034
2022	11,974
2023	9,609
Thereafter	19,376
Total undiscounted operating lease liabilities	78,567
Less: Imputed interest	(11,656)
Total discounted operating lease liabilities	$ 66,911	[1]

[1] Amounts exclude operating lease assets of $2.2 million and other liabilities of $1.1 million that were classified as held for sale at September 30, 2019 (see Note 5).