Note 9 - Accounts and Notes Receivable - Components of Accounts and Notes Receivable (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Billed tenant receivables		$ 30,444	$ 33,801
Unbilled common area maintenance, insurance and tax reimbursements		55,499	56,001
Deferred rent receivables		578	1,905
Defined benefit plan receivable (1)	[1]	0	14,421
Other receivables		9,508	8,361
Straight-line rent receivables		211,588	189,737
Total accounts and notes receivable, net		$ 307,617	$ 304,226

[1] See Footnote 23 of the Notes to the Consolidated Financial Statements for defined benefit plan disclosure.