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Description of Business and Summary of Significant Accounting Policies Sales Incentives (Tables)
 12 Months Ended
Feb. 28, 2014
Sales Incentives [Abstract]  
Schedule of Accrued Sales Incentives [Table Text Block]
 
Year
Ended
 
Year
Ended
 
Year
Ended
 
February 28,
2014
 
February 28,
2013
 
February 29,
2012
Opening balance
$
16,821

 
$
18,154

 
$
11,981

Liabilities acquired during acquisition
—

 
—

 
7,149

Accruals
37,114

 
35,636

 
43,671

Payments and credits
(34,544
)
 
(33,619
)
 
(40,985
)
Reversals for unearned sales incentives
(1,935
)
 
(2,933
)
 
(2,200
)
Reversals for unclaimed sales incentives
(55
)
 
(417
)
 
(1,462
)
Ending balance
$
17,401

 
$
16,821

 
$
18,154