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Description of Business and Summary of Significant Accounting Policies Sales Incentives (Tables)
 12 Months Ended
Feb. 28, 2015
Sales Incentives [Abstract]  
Schedule of Accrued Sales Incentives [Table Text Block]
 
Year
Ended
 
Year
Ended
 
Year
Ended
 
February 28,
2015
 
February 28,
2014
 
February 28,
2013
Opening balance
$
17,401

 
$
16,821

 
$
18,154

Accruals
35,350

 
37,114

 
35,636

Payments and credits
(37,352
)
 
(34,544
)
 
(33,619
)
Reversals for unearned sales incentives
(1,294
)
 
(1,935
)
 
(2,933
)
Reversals for unclaimed sales incentives
(8
)
 
(55
)
 
(417
)
Ending balance
$
14,097

 
$
17,401

 
$
16,821