GOODWILL, CAPITALIZED SOFTWARE AND OTHER INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Goodwill [Line Items]
Goodwill as of beginning of period	$ 722,042		$ 801,889
Goodwill impairment charge	0		(71,840)		0
Divestiture	(86,153)
Effect of foreign currency translation and other	12,657		(8,007)
Goodwill as of end of period	648,546		722,042		801,889
Accumulated impairment charges	0		(71,840)		0
Capitalized software and other intangible assets [Abstract]
Gross Carrying Amount, amortized intangible assets	415,175		480,909
Accumulated Amortization	(316,771)		(368,674)
Net Carrying Amount, amortized intangible assets	98,404		112,235
Amortization expense of finite-lived intangible assets [Abstract]
Amortization Expense	35,171	[1]	31,917	[1]	29,503	[1]
Future amortization expense of finite-lived intangible assets [Abstract]
2015	32,087
2016	28,033
2017	18,437
2018	10,612
2019	6,328
Thereafter	2,907
Capitalized Software [Member]
Capitalized software and other intangible assets [Abstract]
Amortization period	5 years
Future amortization expense of finite-lived intangible assets [Abstract]
2015	27,165
2016	23,891
2017	14,295
2018	6,943
2019	2,494
Thereafter	21
Capitalized Software [Member] | Internally Developed [Member]
Capitalized software and other intangible assets [Abstract]
Gross Carrying Amount, amortized intangible assets	225,249		243,872
Accumulated Amortization	(165,720)		(184,732)
Net Carrying Amount, amortized intangible assets	59,529		59,140
Amortization expense of finite-lived intangible assets [Abstract]
Amortization Expense	19,506	[1]	14,732	[1]	12,385	[1]
Capitalized Software [Member] | Purchased [Member]
Capitalized software and other intangible assets [Abstract]
Gross Carrying Amount, amortized intangible assets	122,396		165,117
Accumulated Amortization	(107,116)		(142,453)
Net Carrying Amount, amortized intangible assets	15,280		22,664
Amortization expense of finite-lived intangible assets [Abstract]
Amortization Expense	8,455	[1]	9,604	[1]	8,877	[1]
Customer Relationship [Member]
Capitalized software and other intangible assets [Abstract]
Gross Carrying Amount, amortized intangible assets	47,000		52,036
Accumulated Amortization	(24,185)		(25,281)
Net Carrying Amount, amortized intangible assets	22,815		26,755
Amortization period	10 years
Amortization expense of finite-lived intangible assets [Abstract]
Amortization Expense	4,132	[1]	4,167	[1]	4,472	[1]
Future amortization expense of finite-lived intangible assets [Abstract]
2015	4,142
2016	4,142
2017	3,978
2018	3,834
2019	3,834
Thereafter	2,885
Other [Member]
Capitalized software and other intangible assets [Abstract]
Gross Carrying Amount, amortized intangible assets	20,530		19,884
Accumulated Amortization	(19,750)		(16,208)
Net Carrying Amount, amortized intangible assets	780		3,676
Amortization period	3 years
Amortization expense of finite-lived intangible assets [Abstract]
Amortization Expense	3,078	[1]	3,414	[1]	3,769	[1]
Future amortization expense of finite-lived intangible assets [Abstract]
2015	780
2016	0
2017	0
2018	0
2019	0
Thereafter	0
Trademarks [Member]
Capitalized software and other intangible assets [Abstract]
Gross Carrying Amount, unamortized intangible assets	358		4,428
Net Carrying Amount, unamortized intangible assets	358		4,428
Application Performance Management [Member]
Goodwill [Line Items]
Goodwill as of beginning of period	469,947		477,632
Effect of foreign currency translation and other	12,910		(7,685)
Goodwill as of end of period	482,857		469,947
Accumulated impairment charges	0		0		0
Mainframe [Member]
Goodwill [Line Items]
Goodwill as of beginning of period	140,557		140,591
Effect of foreign currency translation and other	(253)		(34)
Goodwill as of end of period	140,304		140,557
Accumulated impairment charges	0		0		0
Application Services [Member]
Goodwill [Line Items]
Goodwill as of end of period	25,385		25,385		25,385
Accumulated impairment charges	0		0		0
Discontinued Operation [Member]
Goodwill [Line Items]
Goodwill as of beginning of period	86,153		158,281
Goodwill impairment charge			(71,840)
Divestiture	(86,153)
Effect of foreign currency translation and other	0		(288)
Goodwill as of end of period	0		86,153
Accumulated impairment charges	$ 0		$ (71,840)		$ 0

[1] As discussed in Note 2, we have treated the operations of certain business segments as discontinued operations. The results for all periods have been restated to reflect such treatment.