Note 7 - Leasees - Lease Income (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Fixed lease income (1)	[1]			$ 393,423		$ 430,618
Variable lease income (2)	[2]			115,018		127,234
Above-market and below-market leases amortization, net				13,524		13,492
Total lease income (3)		$ 235,961	$ 280,710	$ 521,965	[3]	$ 571,344	[3]

[1] Includes minimum base rents, expense reimbursements, ancillary income and straight-line rent adjustments.

[2] Includes minimum base rents, expense reimbursements, percentage rent, lease termination fee income and ancillary income.

[3] During the six months ended June 30, 2020, the Company recorded a $50.5 million adjustment associated with potentially uncollectible revenues and disputed amounts, which includes $11.5 million for straight-line rent receivables, primarily attributable to the COVID-19 pandemic.