Stockholders' Equity - Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Shares Issued
Option exercises (in shares)		299
ATM Program issuances (in shares)	5,603,161	6,605,191
Redemption of OP Units and DownREIT Units (in shares)	271,997
Stock incentive plans, net of forfeitures (in shares)	(89,579)	103,079
Totals (in shares)	5,785,579	6,708,569
Average Price
Option exercises (in dollars per share)		$ 66.89
ATM Program issuances (in dollars per share)	$ 73.74	$ 84.60
Gross Proceeds
Option exercises		$ 20
ATM Program Issuances	$ 413,157	558,790
Totals	413,157	558,810
Net Proceeds
Option exercises		20
ATM Program issuances	411,032	549,326
Total	$ 411,032	$ 549,346