STOCKHOLDERS' EQUITY (Details 4) (Stock options, USD $)	12 Months Ended
	Mar. 31, 2015
$51.56-$60.00
Data for options outstanding and exercisable
Exercise price, low end of range (in dollars per share)	$ 51.56
Exercise price, high end of range (in dollars per share)	$ 60.00
Options outstanding:
Number of Shares	26,933
Weighted-Average Exercise Price (in dollars per share)	$ 53.49
Weighted-Average Remaining Contractual Life	6 months 26 days
Options exercisable:
Exercisable Number of Shares	26,933
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 53.49
Weighted Average Remaining Contractual Life	6 months 26 days
$60.01-$75.82
Data for options outstanding and exercisable
Exercise price, low end of range (in dollars per share)	$ 60.01
Exercise price, high end of range (in dollars per share)	$ 75.82
Options outstanding:
Number of Shares	164,901
Weighted-Average Exercise Price (in dollars per share)	$ 68.07
Weighted-Average Remaining Contractual Life	3 years 3 months 4 days
Options exercisable:
Exercisable Number of Shares	164,901
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 68.07
Weighted Average Remaining Contractual Life	3 years 3 months 4 days
$51.56-$75.82
Data for options outstanding and exercisable
Exercise price, low end of range (in dollars per share)	$ 51.56
Exercise price, high end of range (in dollars per share)	$ 75.82
Options outstanding:
Number of Shares	191,834
Weighted-Average Exercise Price (in dollars per share)	$ 66.03
Weighted-Average Remaining Contractual Life	2 years 10 months 17 days
Options exercisable:
Exercisable Number of Shares	191,834
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 66.03
Weighted Average Remaining Contractual Life	2 years 10 months 17 days