Quarterly report pursuant to Section 13 or 15(d)

General - Additional Information (Detail)

v3.4.0.3
General - Additional Information (Detail)
3 Months Ended
Aug. 21, 2015
Mar. 31, 2016
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]    
Derivative effective dates   Aug. 12, 2015
Class A and Class B Common Stock [Member]    
Schedule Of Organization And Summary Of Significant Accounting Policies [Line Items]    
Common stock split ratio 3  
Dividend payable date to common stock shareholders Oct. 16, 2015  
Dividend record date on common stock Oct. 02, 2015