Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.2.0.727
Subsequent Events - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jul. 30, 2015
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Subsequent Event [Line Items]          
Dividends declared, date       Jul. 30, 2015  
Dividends declared per share   $ 0.10 $ 0.10 $ 0.2 $ 0.2
Dividends declared, payable date       Aug. 28, 2015  
Dividends declared, record date       Aug. 14, 2015  
Subsequent Event          
Subsequent Event [Line Items]          
Dividends declared per share $ 0.10        
Stock repurchase program, authorized amount $ 10,000,000.0