Note 7 - Leases - Supplement Financial Statement Disclosure (Details) - USD ($) $ in Thousands	Dec. 31, 2020		Dec. 31, 2019
Operating lease assets	$ 52,421	[1]	$ 60,246	[2]
Operating lease liabilities	14,147		14,204
Other liabilities	38,724		$ 46,059
Total operating lease liabilities	$ 70,500
Weighted-average remaining lease term (Year)	4 years 10 months 6 days	[1]	5 years 8 months 26 days	[2]
Weighted-average discount rate	4.96%	[1]	5.71%	[2]
Accrued Expense [Member]
Operating lease liabilities	$ 14,147		$ 14,204
Other Liabilities [Member]
Other liabilities	38,724	[1]	46,059	[2]
Accrued Expense and Other Liabilities [Member]
Total operating lease liabilities	$ 52,871	[1]	$ 60,263	[2]

[1] Amounts exclude operating lease assets of $8.7 million, accrued expenses of $2.3 million and other liabilities of $7.3 million that were classified as held for sale at December 31, 2020 (see Note 5).

[2] Amounts exclude operating lease assets of $11.5 million, accrued expenses of $1.8 million and other liabilities of $10.4 million that were classified as held for sale at December 31, 2019 (see Note 5).