Consolidated Statements Of Equity (Parentheticals) - $ / shares	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Common shares issued	3,599	0	4,778
Conversions and redemptions of operating partnership units	8	2	3
Cash distributions declared to equity holders per share	$ 3.20	$ 3.08	$ 3.00
Additional Paid-In Capital
Common share options exercised	0	8	11

The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

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