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Redeemable Noncontrolling Interests in Operating Partnership (Activity of Units in Operating Partnership) (Details) - shares
shares in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Summary of the activity of the operating partnership units      
Units outstanding at beginning of year (in shares) 4,277 4,538 4,833
Units redeemed for shares of common stock (in shares) (868) (339) (165)
Units outstanding at end of year (in shares) 7,158 4,277 4,538
Common units convertible/redeemable at end of year (in shares) 5,533 3,823 4,027
Common Units      
Summary of the activity of the operating partnership units      
Units issued (in shares) 2,500 0 0
Long Term Incentive Plan Units      
Summary of the activity of the operating partnership units      
Units issued (in shares) 469 129 91
Performance LTIP units      
Summary of the activity of the operating partnership units      
Units issued (in shares) 840 160 60
Performance LTIP units forfeited/cancelled (in shares) (60) (211) (281)