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Stock-based Compensation (Tables)
 9 Months Ended
Nov. 30, 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 nine month period ended November 30, 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
 
26,157

 
60.20

Vested
 
—

 
—

Forfeited
 
(7,553
)
 
54.31

Non-vested balance as of November 30, 2017
 
70,030

 
$
54.59
Restricted Stock Unit Awards Non-Vested
The activity of our non-vested restricted stock unit awards for the nine month period ended November 30, 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
 
46,436

 
60.01

Vested
 
(62,576
)
 
47.26

Forfeited
 
(8,630
)
 
56.64

Non-vested balance as of November 30, 2017
 
109,777

 
$
56.62
Stock Appreciation Rights and Option Awards
A summary of the Company’s stock appreciation rights activity for the nine month period ended November 30, 2017 is as follows:
 
 
 
SARs
 
Weighted Average
Exercise Price
Outstanding as of February 28, 2017
 
170,139

 
$
42.02

Granted
 
—

 
—

Exercised
 
(8,350
)
 
43.31

Forfeited
 
(2,145
)
 
45.36

Outstanding as of November 30, 2017
 
159,644

 
$
41.91

Exercisable as of November 30, 2017
 
159,644

 
$
41.91
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 (in thousands):
 
 
 
Nine Months Ended November 30,

 
2017
 
2016
Compensation expense
 
$
4,810

 
$
4,408

Income tax benefits
 
$
1,684

 
$
1,411