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Stock-based Compensation (Tables)
 6 Months Ended
Aug. 31, 2017
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 six month period ended August 31, 2017 is as follows:
 
 
Performance
Stock Units
Weighted
Average Grant
Date Fair Value
Non-Vested Balance as of February 28, 2017
 
51,426

$
51.70

Granted
 
25,634

60.20

Vested
 
—

—

Forfeited
 
(2,631
)
27.25

Non-Vested Balance as of August 31, 2017
 
74,429

$
54.53
Restricted Stock Unit Awards Non-Vested
The activity of our non-vested restricted stock unit awards for the six month period ended August 31, 2017 is as follows:
 
 
 
Restricted
Stock  Units
Weighted
Average  Grant
Date Fair Value
Non-Vested Balance as of February 28, 2017
 
134,547

$
51.10

Granted
 
45,613

60.00

Vested
 
(61,361
)
47.09

Forfeited
 
(4,021
)
55.50

Non-Vested Balance as of August 31, 2017
 
114,778

$
56.63
Stock Appreciation Rights and Option Awards
A summary of the Company’s stock appreciation rights activity for the six month period ended August 31, 2017 is as follows:
 
 
 
SAR’s
Weighted Average
Exercise  Price
Outstanding as of February 28, 2017
 
170,139

$
42.02

Granted
 
—

—

Exercised
 
(4,479
)
42.54

Forfeited
 
(2,145
)
45.36

Outstanding as of August 31, 2017
 
163,515

$
41.96

Exercisable as of August 31, 2017
 
153,515

$
41.75
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:
 
Six months ended August 31,
 
2017
 
2016
 
 
(In thousands)
 
 
(Unaudited)
Compensation Expense
 
$
3,400

 
$
3,198

Income tax benefits
 
$
1,088

 
$
1,023