XML 60 R50.htm IDEA: XBRL DOCUMENT v3.5.0.2
Cash Dividends Declared (Detail) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dividends Payable [Line Items]        
Dividend per share $ 0.0425 $ 0.0425 $ 0.1275 $ 0.1175
Payment date Nov. 15, 2016      
Dividend Payment 1st        
Dividends Payable [Line Items]        
Dividend per share     $ 0.0425  
Date declared     Mar. 03, 2016  
Date of record     May 02, 2016  
Payment date     May 16, 2016  
Dividend Payment 2nd        
Dividends Payable [Line Items]        
Dividend per share     $ 0.0425  
Date declared     Jun. 09, 2016  
Date of record     Aug. 01, 2016  
Payment date     Aug. 15, 2016  
Dividend Payment 3rd        
Dividends Payable [Line Items]        
Dividend per share     $ 0.0425  
Date declared     Aug. 04, 2016  
Date of record     Nov. 01, 2016  
Payment date     Nov. 15, 2016