• Filing Date: 2017-02-22
  • Form Type: 10-K
  • Description: Annual report
v3.6.0.2
Subsequent Events - Additional Information (Detail) - $ / shares
12 Months Ended
Jan. 16, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Subsequent Event [Line Items]        
Dividends per common share   $ 1.20 $ 1.20 $ 1.10
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Dividends per common share $ 0.35      
Date of dividend payable Mar. 17, 2017      
Record date of dividend payable Feb. 17, 2017