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STOCK-BASED COMPENSATION (Details) - USD ($)	3 Months Ended			12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	37.64%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.65%	0.00%
Stock Option Plans [Abstract]
Weighted-average fair value at the grant date	$ 32.05
Options Activity [Roll Forward]
Exercised (in shares)	(48,803)			(159,348)
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Compensation related to stock option and restricted stock plans	$ 3,696,045	$ (3,565,393)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	6 years 14 days
Group B Performance Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross					56,660	443,700
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures	347,360
Stock Options Plans [Member]
Stock Option Plans [Abstract]
Shares of authorized common stock reserved for issuance (in shares)	4,100,000
Number of shares available for grant (in shares)	255,388
Options Activity [Roll Forward]
Options outstanding, beginning of year (in shares)	1,083,767
Granted (in shares)	2,800
Exercised (in shares)	(48,803)
Forfeited (in shares)	(23,010)
Expired (in shares)	0
Options outstanding, end of period (in shares)	1,014,754			1,083,767
Options exercisable, end of period (in shares)	292,680
Weighted Average Exercise Price [Roll Forward]
Options outstanding, beginning of year (in dollars per share)	$ 69.15
Granted (in dollars per share)	82.51
Exercised (in dollars per share)	47.93
Forfeited (in dollars per share)	71.66
Expired (in dollars per share)	0.00
Options outstanding, end of period (in dollars per share)	70.15			$ 69.15
Options exercisable, end of period (in dollars per share)	$ 59.73
Stock Option Activity Additional Disclosures [Abstract]
Weighted-average remaining contractual term, Options outstanding, end of period	7 years 2 months 19 days
Weighted-average remaining contractual terms, Options exercisable, end of period	5 years 6 months
Aggregate intrinsic value, Options outstanding, end of period	$ 3,947,612
Aggregate intrinsic value, Options exercisable, end of period	3,136,779
Intrinsic value of options exercised	1,953,575	$ 197,660
Compensation Cost Not yet Recognized [Abstract]
Total unrecognized stock-based compensation expense related to non-vested stock options	$ 16,000,000
Weighted average period for recognition	3 years 15 days
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Weighted average period for recognition	3 years 15 days
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Compensation related to stock option and restricted stock plans	$ (1,276,961)	(1,892,821)
Group A Performance Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Gross					8,590	70,800
Restricted Stock [Member]
Restricted Stock [Abstract]
Awards granted (in shares)	0
Grant date fair value (in dollars per share)	$ 0.00
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options	$ 3,100,000
Summary of the status and changes in restricted stock [Roll Forward]
Outstanding at March 31, 2012 (in shares)	433,750
Vested during the period, net of cancellations (in shares)	(60,390)
Outstanding at June 30, 2012 (in shares)	347,360			433,750
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at March 31, 2012 (in dollars per share)	$ 76.84
Grant date fair value (in dollars per share)	0.00
Vested during the period, net of cancellations (in dollars per share)	76.34
Cancelled during the period (in dollars per share)	$ 74.08
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited	(26,000)
Outstanding at June 30, 2012 (in dollars per share)	$ 77.14			$ 76.84
Compensation related to stock option and restricted stock plans	$ 3,409,820	(1,802,816)
Restricted Stock [Member] | EPS Target [Member] | $10.29 EPS [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	100.00%
EPS Target	$ 10.29
Restricted Stock [Member] | EPS Target [Member] | $9.76 EPS [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	67.00%
EPS Target	$ 9.76
Restricted Stock [Member] | EPS Target [Member] | $9.26 EPS [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	33.00%
EPS Target	$ 9.26
Restricted Stock [Member] | EPS Target [Member] | Below $9.26 EPS [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	0.00%
Restricted Stock [Member] | Trailing Four Quarter EPS Target [Member] | $13.00 [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	25.00%
EPS Target	$ 13.00
Restricted Stock [Member] | Trailing Four Quarter EPS Target [Member] | $14.50 [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	25.00%
EPS Target	$ 14.50
Restricted Stock [Member] | Trailing Four Quarter EPS Target [Member] | $16.00 [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	25.00%
EPS Target	$ 16.00
Restricted Stock [Member] | Trailing Four Quarter EPS Target [Member] | $18.00 [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)	25.00%
EPS Target	$ 18.00
Equity Securities [Member]
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Compensation related to stock option and restricted stock plans	$ 2,132,859	$ (3,695,637)
Performance Shares [Member]
Compensation Cost Not yet Recognized [Abstract]
Weighted average period for recognition	1 year 6 months 15 days
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Weighted average period for recognition	1 year 6 months 15 days
Unrecognized compensation cost related to unvested restricted stock awards granted	$ 8,500,000
Maximum [Member] | Stock Options Plans [Member]
Stock Option Plans [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Vesting period	5 years
Maximum [Member] | Restricted Stock [Member] | EPS Target [Member] | Below $9.26 EPS [Member]
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
EPS Target	$ 9.26

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Unrecognized cost of unvested share-based compensation awards.

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