XML 74 R61.htm IDEA: XBRL DOCUMENT v3.3.1.900
Financial Instruments and Fair Value Measurements - Summary of Quantitative about Significant Unobservable Inputs Used to Determine Fair Value of Impairment of Long-Lived Assets Held and Used (Detail) - USD ($)
$ in Millions
3 Months Ended
Jan. 31, 2016
Jan. 31, 2015
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair Value of Impairment $ 39.1 $ 0.2
Broker Quote / Indicative Bids [Member] | Level 3 [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair Value of Impairment $ 34.1  
Unobservable Input Indicative Bids  
Range of Input Values 0.00%  
Sales Value [Member] | Level 3 [Member]    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair Value of Impairment $ 5.0 $ 0.2
Unobservable Input Sales Value  
Range of Input Values 0.00% 0.00%