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STOCK-BASED COMPENSATION (Tables)
 3 Months Ended
Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block]
There were no option grants during the three months ended June 30, 2014. Fair value was estimated at grant date using the weighted-average assumptions listed below:
 
Three months ended June 30,
 
2015
 
2014
Dividend Yield
—%
 
—%
Expected Volatility
37.64%
 
—%
Average risk-free rate
1.65%
 
—%
Expected Life
6.0 years
 
0.0 years
Tabular disclosure of performance shares vesting based on EPS targets [Table Text Block]
Group A awards vested on April 30, 2015 based on the Company's achievement of the following performance goals as of March 31, 2015:

 EPS Target
 
Restricted Shares Eligible for Vesting (Percentage of Award)
$10.29
 
100%
$9.76
 
67%
$9.26
 
33%
Below $9.26
 
0%
Group B awards will vest as follows, if the Company achieves the following performance goals during any successive trailing four quarters during the measurement period ending on March 31, 2017:

Trailing 4 quarter EPS Target
 
Restricted Shares Eligible for Vesting (Percentage of Award)
$13.00
 
25%
$14.50
 
25%
$16.00
 
25%
$18.00
 
25%
Summary schedule of stock option activity
ption activity for the three months ended June 30, 2015 was as follows:
 
Shares
 
Weighted Average Exercise
Price
 
Weighted Average
Remaining
Contractual Term
 
Aggregate Intrinsic Value
Options outstanding, beginning of period
1,083,767

 
$
69.15

 
 
 
 
Granted during period
2,800

 
82.51

 
 
 
 
Exercised during period
(48,803
)
 
47.93

 
 
 
 
Forfeited during period
(23,010
)
 
71.66

 
 
 
 
Expired during period
—

 
—

 
 
 
 
Options outstanding, end of period
1,014,754

 
$
70.15

 
7.22
 
$
3,947,612

Options exercisable, end of period
292,680

 
$
59.73

 
5.50
 
$
3,136,779
Intrinsic value of options exercised
The total intrinsic value of options exercised during the periods ended June 30, 2015 and 2014 was as follows:
 
June 30,
2015
 
June 30,
2014
Three months ended
$
1,953,575

 
$
197,660
Summary of the status and changes restricted stock
A summary of the status of the Company’s restricted stock as of June 30, 2015, and changes during the three months ended June 30, 2015, are presented below:
 
Shares
 
Weighted Average Fair Value at Grant Date
Outstanding at March 31, 2015
433,750

 
$
76.84

Granted during the period
—

 
—

Vested during the period
(60,390
)
 
76.34

Forfeited during the period
(26,000
)
 
74.08

Outstanding at June 30, 2015
347,360

 
$
77.14

 
Share-based compensation included as a component of net income
Total share-based compensation included as a component of net income during the periods ended June 30, 2015 and 2014 was as follows:

 
Three months ended June 30,
 
2015
 
2014
Share-based compensation related to equity classified awards:
 
 
 
Share-based compensation related to stock options
1,276,961

 
1,892,821

Share-based compensation related to restricted stock units
(3,409,820
)
 
1,802,816

Total share-based compensation related to equity classified awards
(2,132,859
)
 
3,695,637