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Basis of Presentation and Summary of Significant Accounting Policies - Redeemable Noncontrolling Interests (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]            
Net income allocable to redeemable noncontrolling interests $ 532 $ 116 $ 2,014      
Distributions declared to redeemable noncontrolling interests 0 0 0      
Acquisition of partners' interests in Territory joint venture 0 (21,993) (8,261)      
Redeemable Noncontrolling Interests            
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]            
Redeemable noncontrolling interests balance January 1 45,743 72,104 88,165      
Net income allocable to redeemable noncontrolling interests 532 116 2,009      
Distributions declared to redeemable noncontrolling interests (3,191) (3,788) (4,155)      
Acquisition of partners' interests in Territory joint venture 0 (22,461) (8,261)      
Other, net including adjustments to redemption value 9,490 (228) (5,654)      
Total limited partners' interests in Operating Partnership and other redeemable noncontrolling interests balance at December 31 52,574 45,743 72,104      
Total limited partners' interests in Operating Partnership and other redeemable noncontrolling interests balance at December 31 45,743 72,104 72,104 $ 52,574 $ 45,743 $ 72,104
Redeemable Noncontrolling Interests | Partnership Interest            
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]            
Redeemable noncontrolling interests balance January 1 45,743 72,104        
Total limited partners' interests in Operating Partnership and other redeemable noncontrolling interests balance at December 31 52,574 45,743 72,104      
Limited partners' interests in Operating Partnership       42,504 35,673 39,573
Other redeemable noncontrolling interests in certain subsidiaries       10,070 10,070 32,531
Total limited partners' interests in Operating Partnership and other redeemable noncontrolling interests balance at December 31 $ 45,743 $ 72,104 $ 72,104 $ 52,574 $ 45,743 $ 72,104