Quarterly report pursuant to Section 13 or 15(d)

General - Additional Information (Detail)

v3.3.0.814
General - Additional Information (Detail)
9 Months Ended
Aug. 21, 2015
Sep. 30, 2015
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]    
Interest rate swap agreement date   Aug. 12, 2015
Class A and Class B Common Stock [Member]    
New Accounting Pronouncements Or Change In Accounting Principle [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