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Stock Issuance and Stock Repurchase Program (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Dec. 16, 2014
Nov. 07, 2013
Mar. 31, 2003
Share Repurchase Program          
Number of shares purchased 201us-gaap_TreasuryStockSharesAcquired 3us-gaap_TreasuryStockSharesAcquired      
Average price per share $ 31.08us-gaap_TreasuryStockAcquiredAverageCostPerShare $ 33.23us-gaap_TreasuryStockAcquiredAverageCostPerShare      
Remaining authorization at January 31: 19,999us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased 8,266us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased      
Stock Issuance and Stock Repurchase Program (Textual) [Abstract]          
Stock Issued During Period, Shares, New Issues   7,200us-gaap_StockIssuedDuringPeriodSharesNewIssues      
Common Stock, Par or Stated Value Per Share $ 0.01us-gaap_CommonStockParOrStatedValuePerShare        
Sale of Stock, Price Per Share       $ 32.00us-gaap_SaleOfStockPricePerShare  
Proceeds from Issuance of Common Stock    $ 220,357us-gaap_ProceedsFromIssuanceOfCommonStock      
Stock Repurchase Program, Number of Shares Authorized to be Repurchased     20,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased   20,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased