Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Total Revenues	$ 189,550	$ 193,898
Expenses:
Rental property operating expenses	66,395	64,538
Reimbursed expenses	368	521
General and administrative expenses	6,733	5,652
Interest expense	17,208	15,904
Depreciation and amortization	70,870	71,614
Transaction costs	0	365
Other	590	566
Total costs and expenses	162,164	159,160
Income from unconsolidated joint ventures	1,903	3,425
Gain on sales of investments in unconsolidated joint ventures	39	46,230
Gain (loss) on investment property transactions	(17)	90,916
Net income	29,311	175,309
Net income attributable to noncontrolling interests	(201)	(366)
Net income available to common stockholders	$ 29,110	$ 174,943
Net income per common share — basic (in usd per share)	$ 0.20	$ 1.19
Net income per common share — diluted (in usd per share)	$ 0.20	$ 1.18
Weighted average shares — basic (in shares)	148,624	147,424
Weighted average shares — diluted (in shares)	148,725	148,561
Rental property revenues
Revenues:
Total Revenues	$ 184,807	$ 189,129
Fee income
Revenues:
Total Revenues	4,529	4,732
Other
Revenues:
Total Revenues	$ 214	$ 37