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Restructuring charges (Tables)
3 Months Ended
Nov. 30, 2012
Restructuring Charges [Abstract]  
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
The following illustrates the reconciliation of the restructuring liability by major type of costs for the three months ended November 30, 2012 (in thousands):
 
 
Balance as of August 31, 2012
 
Charges
 
Payments and Other
 
Balance as of November 30, 2012
 
Total Charges to Date
 
Total Expected Charges
Severance costs
 
$
2,477

 
$
939

 
$
(2,548
)
 
$
868

 
$
3,680

 
$
4,000

Contract termination costs
 
414

 
5

 
(59
)
 
360

 
445

 
4,100

Other exit costs
 
64

 
649

 
(693
)
 
20

 
2,480

 
2,600

Total
 
$
2,955

 
$
1,593

 
$
(3,300
)
 
$
1,248

 
$
6,605

 
$
10,700

Schedule of Restructuring and Related Activities By Segment [Table Text Block]
Restructuring charges by operating segment were as follows (in thousands):
 
As of November 30, 2012
 
 
Current Period Charges
 
Total Charges to Date
 
Total Expected Charges
Metals Recycling Business
 
$
550

 
$
2,209

 
$
2,400

Auto Parts Business
 
187

 
420

 
600

Unallocated (Corporate)
 
856

 
3,976

 
7,700

Total
 
$
1,593

 
$
6,605

 
$
10,700