Note 7 - Leases - Supplement Financial Statement Disclosure (Details) - USD ($) $ in Thousands		Dec. 31, 2019		Dec. 31, 2018
Operating lease assets		$ 71,466	[1]	$ 0
Other liabilities		$ 56,253		0
Weighted-average remaining lease term (Year)	[1]	5 years 8 months 26 days
Weighted-average discount rate	[1]	5.71%
Accrued Expense [Member]
Accrued expenses		$ 15,828	[1]	$ 0
Other Liabilities [Member]
Other liabilities	[1]	56,253
Accrued Expense and Other Liabilities [Member]
Total operating lease liabilities	[1]	$ 72,081

[1] Amounts exclude operating lease assets of $0.3 million, accrued expenses of $0.2 million and other liabilities of $0.2 million that were classified as held for sale at December 31, 2019 (see Note 5).