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Equity - Common Stock Activity (Details) - USD ($)
12 Months Ended
Mar. 08, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Class of Stock [Line Items]        
Proceeds from issuance of common stock/units, net   $ 0 $ 0 $ 647,382,000
Shares repurchased during period   1,639,260  
Repurchase of common stock     $ 50,016,000  
ATM Program        
Class of Stock [Line Items]        
Number of share authorized, value   $ 125,000,000.0    
Cumulative total of sales of common stock   20,100,000    
Proceeds from issuance of common stock/units, net   $ 0 $ 0 $ 0
Shares repurchased during period 1,600,000 0    
Stock repurchase program authorized $ 250,000,000.0      
Share repurchase program, weighted average price (in dollars per share) $ 30.48      
Repurchase of common stock $ 50,000,000.0