|**Earnings Per Share (Tables)**                                                                                                                                                                            | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
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|**Earnings Per Share [Abstract]**                                                                                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|Schedule of Earnings Per Share, Basic and Diluted                                                                                                                                                          | A reconciliation of basic and diluted EPS, which includes contingently issuable shares that could affect EPS if performance units ultimately vest and the FSAs settle in shares, for thethree months and ninemonths endedJuly 31, 2015and2014is presented below.Three MonthsNine MonthsIn thousands, except per share amounts2015201420152014Net Income (Loss)$(8,260)$(7,344)$151,120$152,768Average shares of common stock outstanding for basic earnings per share79,03978,18578,82677,715Contingently issuable shares under incentive compensation plans *——286312Contingently issuable shares under forward sale agreements *—63Average shares of dilutive stock79,03978,18579,17578,027Earnings (Loss) Per Share of Common Stock:Basic$(0.10)$(0.09)$1.92$1.97Diluted$(0.10)$(0.09)$1.91$1.96* For the three months ended July 31, 2015 and 2014, the inclusion of 301 contingently issuable shares under incentive compensation plans in both periods, and FSAs in 2015, would have been antidilutive.
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|                                                                                                                                                                                                           | Three Months                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|In thousands, except per share amounts                                                                                                                                                                     | 2015                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Net Income (Loss)                                                                                                                                                                                          | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
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|Average shares of common stock outstanding for basic earnings per share                                                                                                                                    | 79,039                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Contingently issuable shares under incentive compensation plans *                                                                                                                                          | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Contingently issuable shares under forward sale agreements *                                                                                                                                               | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Average shares of dilutive stock                                                                                                                                                                           | 79,039                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Earnings (Loss) Per Share of Common Stock:                                                                                                                                                                 |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|Basic                                                                                                                                                                                                      | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Diluted                                                                                                                                                                                                    | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|* For the three months ended July 31, 2015 and 2014, the inclusion of 301 contingently issuable shares under incentive compensation plans in both periods, and FSAs in 2015, would have been antidilutive.

X- ReferencesNo definition available.
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duration X- DefinitionTabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.
+ ReferencesReference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257
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