CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues
Rental income	$ 923,677	$ 753,427	$ 804,076
Income from direct financing leases	1,029	1,033	1,036
Mortgage interest income	91,661	89,422	76,542
Other investment income	44,721	44,864	43,400
Miscellaneous income	1,721	3,635	3,776
Total revenues	1,062,809	892,381	928,830
Expenses
Depreciation and amortization	342,014	329,924	301,683
General and administrative	64,628	59,889	57,869
Real estate taxes	12,260	12,316	14,933
Acquisition, merger and transition related costs	1,814	2,018	5,115
Impairment on real estate properties	44,658	72,494	45,264
(Recovery) impairment on direct financing leases	(717)	(3,079)	7,917
Provision for credit losses	77,733	37,997
Interest expense	234,604	223,389	208,715
Total expenses	776,994	734,948	641,496
Other income (expense)
Other (expense) income - net	(581)	(879)	814
Loss on debt extinguishment	(30,763)	(13,340)
Gain on assets sold - net	161,609	19,113	55,696
Total other income	130,265	4,894	56,510
Income before income tax expense and income from unconsolidated joint ventures	416,080	162,327	343,844
Income tax expense	(3,840)	(4,925)	(2,844)
Income from unconsolidated joint ventures	16,062	6,143	10,947
Net income	428,302	163,545	351,947
Net income attributable to noncontrolling interest	(11,563)	(4,218)	(10,824)
Net income available to common stockholders	$ 416,739	$ 159,327	$ 341,123
Basic:
Net income available to common stockholders	$ 1.76	$ 0.70	$ 1.60
Diluted:
Net income	$ 1.75	$ 0.70	$ 1.58