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Stock-based Compensation (Tables)
 3 Months Ended
May 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation, Performance Shares Award Unvested Activity [Table Text Block]
The activity of our non-vested performance share unit awards for the three months ended May 31, 2016 is as follows:
 
 
Performance
Stock Units
Weighted
Average Grant
Date Fair Value
Non-Vested Balance as of February 29, 2016
 
27,415

$
46.65

Granted
 
24,011

57.47

Vested
 
—

—

Forfeited
 
—

—

Non-Vested Balance as of May 31, 2016
 
51,426

$
51.70
Restricted Stock Unit Awards Non-Vested
The activity of our non-vested restricted stock unit awards for the three months ended May 31, 2016 is as follows:
 
 
 
Restricted
Stock  Units
 
Weighted
Average  Grant
Date Fair Value
Non-Vested Balance as of February 29, 2016
 
98,693

 
$
45.03

Granted
 
43,585

 
57.47

Vested
 
(29,185
)
 
45.76

Forfeited
 
—

 
—

Non-Vested Balance as of May 31, 2016
 
113,093

 
$
49.64
Stock Appreciation Rights and Option Awards
A summary of the Company’s stock appreciation rights activity for the three months ended May 31, 2016 is as follows:
 
 
 
SAR’s
 
Weighted Average
Exercise  Price
Outstanding as of February 29, 2016
 
312,748

 
$
34.23

Granted
 
—

 
—

Exercised
 
(10,810
)
 
15.22

Forfeited
 
—

 
—

Outstanding as of May 31, 2016
 
301,938

 
$
34.91

Exercisable as of May 31, 2016
 
249,529

 
$
32.91
Share-based compensation expense and related income tax
Share-based compensation expense and related income tax benefits related to all the plans listed above were as follows:
 
Period ended May 31,
 
2016
 
2015
 
 
(In thousands)
Compensation Expense
 
$
1,112

 
$
771

Income tax benefits
 
$
356

 
$
270