STOCK-BASED COMPENSATION (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended	3 Months Ended		9 Months Ended		1 Months Ended		3 Months Ended		9 Months Ended														0 Months Ended					9 Months Ended	0 Months Ended		9 Months Ended	0 Months Ended						9 Months Ended				0 Months Ended		9 Months Ended	0 Months Ended					9 Months Ended				3 Months Ended		9 Months Ended			9 Months Ended			3 Months Ended	9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013	Dec. 31, 2013 Stock Options Plans [Member]	Dec. 31, 2012 Stock Options Plans [Member]	Dec. 31, 2013 Stock Options Plans [Member]	Dec. 31, 2012 Stock Options Plans [Member]	Nov. 30, 2011 Restricted Stock [Member]	Nov. 30, 2010 Restricted Stock [Member]	Dec. 31, 2013 Restricted Stock [Member]	Dec. 31, 2012 Restricted Stock [Member]	Dec. 31, 2013 Restricted Stock [Member]	Dec. 31, 2012 Restricted Stock [Member]	Dec. 31, 2013 Restricted Stock [Member] 15% or higher [Member]	Dec. 31, 2013 Restricted Stock [Member] 12% - 14.99% [Member]	Dec. 31, 2013 Restricted Stock [Member] 10% - 11.99% [Member]	Dec. 31, 2013 Restricted Stock [Member] Below 10% [Member]	Dec. 31, 2013 Restricted Stock [Member] Vesting Percentage 100% [Member]	Dec. 31, 2012 Restricted Stock [Member] Vesting Percentage 100% [Member]	Dec. 31, 2013 Restricted Stock [Member] Vesting Percentage 67% [Member]	Dec. 31, 2012 Restricted Stock [Member] Vesting Percentage 67% [Member]	Dec. 31, 2013 Restricted Stock [Member] Vesting Percentage 33% [Member]	Dec. 31, 2012 Restricted Stock [Member] Vesting Percentage 33% [Member]	Dec. 31, 2013 Restricted Stock [Member] Vesting Percentage 0% [Member]	Dec. 31, 2012 Restricted Stock [Member] Vesting Percentage 0% [Member]	Nov. 07, 2011 Restricted Stock [Member] Service Based Award [Member] Officers [Member]	Nov. 07, 2011 Restricted Stock [Member] Service Based Award [Member] Executive Officers [Member]	Nov. 08, 2010 Restricted Stock [Member] Service Based Award [Member] Executive Officers [Member]	Nov. 07, 2011 Restricted Stock [Member] Performance Based Awards [Member] Executive Officers [Member]	Nov. 08, 2010 Restricted Stock [Member] Performance Based Awards [Member] Executive Officers [Member]	Dec. 31, 2013 Restricted Stock [Member] Performance Based Awards [Member] Executive Officers [Member]	Nov. 06, 2013 Restricted Stock [Member] EPS Target [Member] Performance Based Awards [Member]	Dec. 07, 2012 Restricted Stock [Member] EPS Target [Member] Performance Based Awards [Member]	Dec. 31, 2013 Restricted Stock [Member] EPS Target [Member] Performance Based Awards [Member]	Dec. 13, 2013 Restricted Stock [Member] EPS Target [Member] Performance Based Awards [Member] Directors and Officers [Member]	Nov. 06, 2013 Restricted Stock [Member] EPS Target [Member] Performance Based Awards [Member] Directors and Officers [Member]	Feb. 06, 2013 Restricted Stock [Member] EPS Target [Member] Performance Based Awards [Member] Directors and Officers [Member]	Dec. 07, 2012 Restricted Stock [Member] EPS Target [Member] Performance Based Awards [Member] Directors and Officers [Member]	Dec. 13, 2013 Restricted Stock [Member] EPS Target [Member] Performance Based Awards [Member] Officers [Member]	Dec. 11, 2012 Restricted Stock [Member] EPS Target [Member] Performance Based Awards [Member] Officers [Member]	Dec. 31, 2013 Restricted Stock [Member] EPS Target [Member] $10.29 EPS [Member]	Dec. 31, 2013 Restricted Stock [Member] EPS Target [Member] $9.76 EPS [Member]	Dec. 31, 2013 Restricted Stock [Member] EPS Target [Member] $9.26 EPS [Member]	Dec. 31, 2013 Restricted Stock [Member] EPS Target [Member] Below $9.26 EPS [Member]	Nov. 06, 2013 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] Performance Based Awards [Member]	Feb. 06, 2013 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] Performance Based Awards [Member]	Dec. 31, 2013 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] Performance Based Awards [Member]	Nov. 06, 2013 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] Performance Based Awards [Member] Directors and Officers [Member]	Feb. 06, 2013 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] Performance Based Awards [Member] Directors and Officers [Member]	Dec. 07, 2012 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] Performance Based Awards [Member] Directors and Officers [Member]	Dec. 13, 2013 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] Performance Based Awards [Member] Officers [Member]	Dec. 11, 2012 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] Performance Based Awards [Member] Officers [Member]	Dec. 31, 2013 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] $13.00 [Member]	Dec. 31, 2013 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] $14.50 [Member]	Dec. 31, 2013 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] $16.00 [Member]	Dec. 31, 2013 Restricted Stock [Member] Trailing Four Quarter EPS Target [Member] $18.00 [Member]	Dec. 31, 2013 Equity Securities [Member]	Dec. 31, 2012 Equity Securities [Member]	Dec. 31, 2013 Equity Securities [Member]	Dec. 31, 2012 Equity Securities [Member]	Dec. 31, 2013 Performance Shares [Member]	Dec. 31, 2013 Maximum [Member] Stock Options Plans [Member]	Dec. 31, 2013 Maximum [Member] Stock Options Plans [Member] Officers [Member]	Dec. 31, 2013 Maximum [Member] Restricted Stock [Member] EPS Target [Member] Below $9.26 EPS [Member]	Dec. 31, 2012 Expense Reversal [Member] Restricted Stock [Member]	Dec. 31, 2013 Expense Reversal [Member] Restricted Stock [Member]
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%	0.00%	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	54.62%	56.15%	54.62%	56.15%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.52%	0.80%	1.52%	0.80%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	5 years 5 months 19 days	5 years 7 months 6 days	5 years 5 months 19 days	5 years 7 months 6 days
Stock Option Plans [Abstract]
Shares of authorized common stock reserved for issuance (in shares)						4,100,000		4,100,000
Vesting period																																																																10 years	5 years
Number of shares available for grant (in shares)						303,527		303,527
Weighted-average fair value at the grant date	$ 44.41	$ 36.04	$ 44.41	$ 36.04
Options Activity [Roll Forward]
Options outstanding, beginning of year (in shares)								1,249,585
Granted (in shares)								196,860
Exercised (in shares)			(172,755)		(332,665)			(172,755)
Forfeited (in shares)								(60,220)
Expired (in shares)								(740)
Options outstanding, end of period (in shares)						1,212,730		1,212,730
Options exercisable, end of period (in shares)						329,000		329,000
Weighted Average Exercise Price [Roll Forward]
Options outstanding, beginning of year (in dollars per share)								$ 54.90
Granted (in dollars per share)								$ 89.03
Exercised (in dollars per share)								$ 38.82
Forfeited (in dollars per share)								$ 66.73
Expired (in dollars per share)								$ 32.62
Options outstanding, end of period (in dollars per share)						$ 62.16		$ 62.16
Options exercisable, end of period (in dollars per share)						$ 44.12		$ 44.12
Stock Option Activity Additional Disclosures [Abstract]
Weighted-average remaining contractual term, Options outstanding, end of period								7 years 9 months 18 days
Weighted-average remaining contractual terms, Options exercisable, end of period								5 years 9 months
Aggregate intrinsic value, Options outstanding, end of period						$ 31,076,373		$ 31,076,373
Aggregate intrinsic value, Options exercisable, end of period						14,280,979		14,280,979
Intrinsic value of options exercised						6,821,396	5,377,474	8,972,609	10,327,163
Compensation Cost Not yet Recognized [Abstract]
Total unrecognized stock-based compensation expense related to non-vested stock options						23,400,000		23,400,000
Weighted average period for recognition								3 years 10 months 13 days						2 years 9 months 11 days
Restricted Stock [Abstract]
Awards granted (in shares)														35,250
Grant date fair value (in dollars per share)														$ 87.66														$ 67.70	$ 67.70	$ 43.04	$ 67.70	$ 43.04					$ 86.52	$ 89.21	$ 77.31	$ 74.08		$ 73.41										$ 74.08		$ 73.41
Award vesting date																															Apr. 30, 2014	Apr. 30, 2013				Apr. 30, 2015
Ratio of restricted stock vesting immediately (in hundredths)										33.333%	33.333%
Ratio of restricted stock vesting after year one (in hundredths)										33.333%	33.333%
Ratio of restricted stock vesting after year two (in hundredths)										33.333%	33.333%
Schedule of vesting of restricted shares on basis of compounded annual EPS growth [Abstract]
Vesting Percentage (in hundredths)																100.00%	67.00%	33.00%	0.00%																								100.00%	67.00%	33.00%	0.00%									25.00%	25.00%	25.00%	25.00%
EPS Target																																											10.29	9.76	9.26										13.00	14.50	16.00	18.00								9.26
Compounded Annual EPS Growth, Minimum (in hundredths)																				15.00%	15.00%	12.00%	12.00%	10.00%	10.00%
Compounded Annual EPS Growth, Maximum (in hundredths)																						14.99%	14.99%	11.99%	11.99%	10.00%	10.00%
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options												22,000,000		22,000,000
Weighted average period for recognition								3 years 10 months 13 days						2 years 9 months 11 days
Unrecognized compensation cost related to unvested restricted stock awards granted																																																															5,300,000
Summary of the status and changes in restricted stock [Roll Forward]
Outstanding at March 31, 2012 (in shares)														562,456
Awards granted (in shares)																												24,200	15,077	29,080	11,139	15,871	7,275	4,590	59,800			1,940		69,600	2,650	1,200					30,660	50,000	319,700	13,060	85,000	350,900	17,600	7,800
Vested during the period, net of cancellations (in shares)														(27,106)
Outstanding at June 30, 2012 (in shares)												480,011		480,011
Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at March 31, 2012 (in dollars per share)														$ 73.32
Grant date fair value (in dollars per share)														$ 87.66														$ 67.70	$ 67.70	$ 43.04	$ 67.70	$ 43.04					$ 86.52	$ 89.21	$ 77.31	$ 74.08		$ 73.41										$ 74.08		$ 73.41
Vested during the period, net of cancellations (in dollars per share)														$ 53.26
Cancelled during the period (in dollars per share)														$ 74.93
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited														(90,589)
Outstanding at June 30, 2012 (in dollars per share)												$ 75.20		$ 75.20
Compensation related to stock option and restricted stock plans			$ 11,596,771	$ 6,735,222		$ 2,884,602	$ 2,370,084	$ 8,024,370	$ 4,863,099			$ 257,758	$ 1,012,904	$ 4,364,474	$ 2,848,405																																												$ 3,142,360	$ 3,382,988	$ 12,388,844	$ 7,711,504					$ 1,500,000	$ 2,200,000