Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues:
Total Revenues	$ 188,732	$ 183,380	$ 564,919	$ 557,193
Expenses:
Rental property operating expenses	65,354	62,844	195,465	189,003
Reimbursed expenses	383	373	1,149	1,216
General and administrative expenses	7,968	5,658	22,014	19,853
Interest expense	16,709	15,058	50,573	44,955
Depreciation and amortization	72,073	71,498	214,399	215,980
Transaction costs	0	0	0	428
Other	421	723	1,835	1,841
Total costs and expenses	162,908	156,154	485,435	473,276
Income from unconsolidated joint ventures	2,128	1,611	5,826	6,751
Gain (loss) on sales of investments in unconsolidated joint ventures	13,121	(59)	13,160	45,940
Gain (loss) on investment property transactions	13,063	(523)	13,037	90,192
Net income	54,136	28,255	111,507	226,800
Net income attributable to noncontrolling interests	(118)	(140)	(226)	(641)
Net income available to common stockholders	$ 54,018	$ 28,115	$ 111,281	$ 226,159
Net income per common share — basic (in usd per share)	$ 0.36	$ 0.19	$ 0.75	$ 1.53
Net income per common share — diluted (in usd per share)	$ 0.36	$ 0.19	$ 0.75	$ 1.52
Weighted average shares — basic (in shares)	148,688	148,566	148,659	148,181
Weighted average shares — diluted (in shares)	148,772	148,606	148,743	148,586
Rental property revenues
Revenues:
Total Revenues	$ 185,515	$ 179,024	$ 552,088	$ 543,252
Fee income
Revenues:
Total Revenues	3,094	4,350	12,426	13,772
Other
Revenues:
Total Revenues	$ 123	$ 6	$ 405	$ 169