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Subsequent Events - Additional Information (Detail) - $ / shares
3 Months Ended
Apr. 12, 2017
Jan. 23, 2017
Mar. 31, 2017
Mar. 31, 2016
Subsequent Event [Line Items]        
Dividends per share declared on outstanding common stock   $ 0.14 $ 0.14 $ 0.14
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Dividends per share declared on outstanding common stock $ 0.14      
Dividends payable date Jul. 03, 2017      
Dividends payable, shareholders record date Jun. 14, 2017