ACCOUNTING FOR STOCK-BASED COMPENSATION (Details 3) (USD $)	3 Months Ended
	Jun. 30, 2013
$11.58 - $20.00
Information related to the stock options outstanding
Exercise price, low end of range (in dollars per share)	$ 11.58
Exercise price, high end of range (in dollars per share)	$ 20.00
Number of Shares	14,075
Weighted-Average Remaining Contractual Life	8 months 8 days
Weighted-Average Exercise Price (in dollars per share)	$ 14.81
Exercisable Number of Shares	14,075
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 14.81
$20.01 - $30.00
Information related to the stock options outstanding
Exercise price, low end of range (in dollars per share)	$ 20.01
Exercise price, high end of range (in dollars per share)	$ 30.00
Number of Shares	13,200
Weighted-Average Remaining Contractual Life	1 year 2 months 19 days
Weighted-Average Exercise Price (in dollars per share)	$ 28.50
Exercisable Number of Shares	13,200
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 28.50
$30.01 - $40.00
Information related to the stock options outstanding
Exercise price, low end of range (in dollars per share)	$ 30.01
Exercise price, high end of range (in dollars per share)	$ 40.00
Number of Shares	8,629
Weighted-Average Remaining Contractual Life	1 year 5 months 5 days
Weighted-Average Exercise Price (in dollars per share)	$ 39.06
Exercisable Number of Shares	8,629
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 39.06
$40.01 - $50.00
Information related to the stock options outstanding
Exercise price, low end of range (in dollars per share)	$ 40.01
Exercise price, high end of range (in dollars per share)	$ 50.00
Number of Shares	18,800
Weighted-Average Remaining Contractual Life	2 years 8 months 8 days
Weighted-Average Exercise Price (in dollars per share)	$ 47.26
Exercisable Number of Shares	18,800
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 47.26
$50.01 - $60.00
Information related to the stock options outstanding
Exercise price, low end of range (in dollars per share)	$ 50.01
Exercise price, high end of range (in dollars per share)	$ 60.00
Number of Shares	41,316
Weighted-Average Remaining Contractual Life	2 years 6 months
Weighted-Average Exercise Price (in dollars per share)	$ 53.42
Exercisable Number of Shares	41,316
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 53.42
$60.01 - $70.00
Information related to the stock options outstanding
Exercise price, low end of range (in dollars per share)	$ 60.01
Exercise price, high end of range (in dollars per share)	$ 70.00
Number of Shares	125,794
Weighted-Average Remaining Contractual Life	4 years 3 months 7 days
Weighted-Average Exercise Price (in dollars per share)	$ 64.13
Exercisable Number of Shares	123,980
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 64.17
$70.01 - $75.82
Information related to the stock options outstanding
Exercise price, low end of range (in dollars per share)	$ 70.01
Exercise price, high end of range (in dollars per share)	$ 75.82
Number of Shares	56,181
Weighted-Average Remaining Contractual Life	6 years 7 months 17 days
Weighted-Average Exercise Price (in dollars per share)	$ 74.87
Exercisable Number of Shares	56,181
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 74.87
$11.58 - $75.82
Information related to the stock options outstanding
Exercise price, low end of range (in dollars per share)	$ 11.58
Exercise price, high end of range (in dollars per share)	$ 75.82
Number of Shares	277,995
Weighted-Average Remaining Contractual Life	3 years 11 months 16 days
Weighted-Average Exercise Price (in dollars per share)	$ 58.60
Exercisable Number of Shares	276,181
Exercisable Weighted-Average Exercise Price (in dollars per share)	$ 58.58