XML 102 R92.htm IDEA: XBRL DOCUMENT v3.3.1.900
Dividends - Additional Information (Detail) - Subsequent Event [Member]
Nov. 10, 2015
$ / shares
Dividends Payable [Line Items]  
Quarterly dividend payment per share $ 0.195
Cash dividend anticipated payable date 2016-04
First Installment [Member]  
Dividends Payable [Line Items]  
Dividends payable date declared Nov. 10, 2015
Quarterly dividend payment per share $ 0.170
Record Date Dec. 31, 2015
Cash dividend payable date Jan. 15, 2016