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Stock-based Compensation (Tables)
 3 Months Ended
May 31, 2018
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, 2018 is as follows:
 
 
Performance
Stock Units
 
Weighted
Average Grant
Date Fair Value
Non-vested balance as of February 28, 2018
 
70,030

 
$
54.59

Granted
 
46,183

 
42.00

Vested
 
(3,378
)
 
46.65

Forfeited
 
(27,109
)
 
49.28

Non-vested balance as of May 31, 2018
 
85,726

 
$
49.80
Restricted Stock Unit Awards Non-Vested
The activity of our non-vested restricted stock unit awards for the three months ended May 31, 2018 is as follows:
 
 
 
Restricted
Stock Units
 
Weighted
Average Grant
Date Fair Value
Non-vested balance as of February 28, 2018
 
109,777

 
$
56.62

Granted
 
82,371

 
42.00

Vested
 
(36,730
)
 
54.64

Forfeited
 
(5,228
)
 
57.19

Non-vested balance as of May 31, 2018
 
150,190

 
$
49.07
Stock Appreciation Rights and Option Awards
A summary of the Company’s stock appreciation rights activity for the three months ended May 31, 2018 is as follows:
 
 
 
SARs
 
Weighted Average
Exercise Price
Outstanding as of February 28, 2018
 
148,513

 
$
43.29

Granted
 
—

 
—

Exercised
 
(4,078
)
 
44.42

Forfeited
 
—

 
—

Outstanding as of May 31, 2018
 
144,435

 
$
43.26

Exercisable as of May 31, 2018
 
144,435

 
$
43.26
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 (in thousands):
 
 
 
Three Months Ended May 31,

 
2018
 
2017
Compensation expense
 
$
1,358

 
$
1,194

Income tax benefits
 
$
306

 
$
382