v2.4.0.8
Earnings Per Share - Additional Information (Detail)
0 Months Ended 3 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Restricted Stock [Member]
   
Earnings Per Share [Line Items]    
Conversion of units to shares 8,121,101  
Anti-dilutive securities excluded from dilutive earning per share calculation   2,301,603
Common Stock [Member]
   
Earnings Per Share [Line Items]    
Conversion of units to shares 45,708,573