XML 29 R31.htm IDEA: XBRL DOCUMENT v2.4.0.8
Secondary Offering of Common Stock - Additional Information (Detail) (USD $)
0 Months Ended 9 Months Ended
Nov. 01, 2014
Feb. 01, 2014
Nov. 27, 2013
Jul. 31, 2014
Secondary Offering [Member]
Nov. 01, 2014
Secondary Offering [Member]
Jul. 31, 2014
Secondary Offering [Member]
Jul. 31, 2014
Sun Capital [Member]
Secondary Offering [Member]
Subsidiary, Sale of Stock [Line Items]              
Shares sold by selling shareholders           4,975,254  
Common stock price per share $ 0.01 $ 0.01 $ 0.01     $ 34.50  
Common stock shares sold pursuant to exercise of underwriters option           648,946  
Ownership percentage             54.60%
Proceeds from Secondary Offering       $ 0      
Expenses in connection with Secondary Offering         $ 571,000