v2.4.0.8
Document and Entity Information
In Millions, unless otherwise specified
9 Months Ended
Aug. 31, 2015
Sep. 30, 2015
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Aug. 31, 2015  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q3  
Trading Symbol AJRD  
Entity Registrant Name AEROJET ROCKETDYNE HOLDINGS, INC.  
Entity Central Index Key 0000040888  
Current Fiscal Year End Date --11-30  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   64.2