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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Apr. 30, 2012
Apr. 30, 2011
Realized loss (gains) on derivative instruments reclassified into operations, tax $ 261 $ (184)
Unrealized gains (loss) on derivative instruments, tax $ 873 $ (523)