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Equity - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended 7 Months Ended 24 Months Ended
Jun. 30, 2019
Jun. 30, 2019
Jul. 31, 2019
Jul. 31, 2019
Aug. 01, 2017
Class of Stock [Line Items]          
Common stock shares authorized amount         $ 200,000,000
Stock repurchased 474,500        
Stock repurchased, value $ 6,488,000 $ 6,488,000      
Subsequent Event [Member]          
Class of Stock [Line Items]          
Stock repurchased     889,549 8,455,150  
Stock repurchased, value     $ 12,166,000 $ 117,549,000  
Stock repurchased, price per share     $ 13.68 $ 13.92  
Stock repurchase amount available for future repurchase     $ 82,451,000 $ 82,451,000