XML 38 R21.htm IDEA: XBRL DOCUMENT v2.4.0.8
Redeemable Capital Shares - Schedule for Redeemable Capital Shares Activity (Detail) (USD $)
 3 Months Ended 12 Months Ended
Jan. 31, 2014
Oct. 31, 2013
Changes In Redeemable Capital Shares [Abstract]    
Opening balance, Shares 1,500,000 2,050,000
Shares issued, Shares 1,800,000 6,800,000
Shares redeemed, Shares (1,600,000) (7,350,000)
Adjustment to period shares due to currency movement and other, Shares      
Ending balance, Shares 1,700,000 [1] 1,500,000
Opening balance, Amount $ 201,725,396 $ 263,827,113
Shares issued, Amount 242,152,871 888,213,089
Shares redeemed, Amount (215,231,645) (960,031,281)
Adjustment to period Shares due to currency movement and other, Amount (2,089,268) 9,716,475
Ending balance, Amount $ 226,557,354 [1] $ 201,725,396
[1] (Unaudited)