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Income Taxes (Tables)
 9 Months Ended
Jul. 31, 2013
Income Tax Disclosure [Abstract]  
Reconciliation of Company's effective tax rate from federal statutory rate
The tables below provide, for the periods indicated, reconciliations of the Company’s effective tax rate from the federal statutory tax rate (amounts in thousands):
 
Nine months ended July 31,
 
2013
 
2012
 
$
 
%*
 
$
 
%*
Federal tax provision at statutory rate
41,141

 
35.0

 
18,268

 
35.0

State tax provision, net of federal benefit
4,890

 
4.2

 
2,205

 
4.2

Reversal of state tax provisions – finalization of audits

 


 
(1,782
)
 
(3.4
)
Reversal of accrual for uncertain tax positions
(3,885
)
 
(3.3
)
 
(18,073
)
 
(34.6
)
Valuation allowance – recognized


 


 
1,400

 
2.7

Valuation allowance – reversed
(3,133
)
 
(2.7
)
 
(31,164
)
 
(59.7
)
Accrued interest on anticipated tax assessments
2,837

 
2.4

 
2,600

 
5.0

Other
(4
)
 


 
3,010

 
5.7

Income tax provision (benefit)
41,846

 
35.6

 
(23,536
)
 
(45.1
)
 
 
Three months ended July 31,
 
2013
 
2012
 
$
 
%*
 
$
 
%*
Federal tax provision at statutory rate
23,888

 
35.0

 
15,034

 
35.0

State tax provision, net of federal benefit
2,839

 
4.2

 
1,815

 
4.2

Decrease in unrecognized tax benefits

 


 
(277
)
 
(0.6
)
Reversal of state tax provisions – finalization of audits

 


 
(1,782
)
 
(4.2
)
Reversal of accrual for uncertain tax positions
(3,885
)
 
(5.7
)
 
(12,794
)
 
(29.8
)
Valuation allowance – recognized


 


 
3,500

 
8.1

Valuation allowance – reversed
(1,856
)
 
(2.7
)
 
(27,847
)
 
(64.8
)
Accrued interest on anticipated tax assessments
854

 
1.3

 
650

 
1.5

Other
(182
)
 
(0.3
)
 
3,010

 
7.1

Income tax provision (benefit)
21,658

 
31.7

 
(18,691
)
 
(43.5
)

* Due to rounding, amounts may not add.