SEGMENT INFORMATION, Geographic operations (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
SEGMENT INFORMATION [Abstract]
Minimum concentration risk threshold of total revenue accounted for by single customer (in hundredths)	10.00%		10.00%		10.00%
Minimum concentration risk threshold of accounts receivable accounted for by single customer (in hundredths)	10.00%		10.00%
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 720,756		$ 723,904	[1]	$ 763,491	[1]
Long-lived assets	1,010,368		1,106,338		1,200,027
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	418,402	[1]	428,698	[1]	435,935	[1]
Long-lived assets	785,403		888,032		961,202
Austria [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	210,755		201,224		214,615
Europe and Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	181,377	[1]	170,693	[1]	193,595	[1]
Other international operations [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	120,977	[1]	124,513	[1]	133,961	[1]
Long-lived assets	$ 14,210		$ 17,082		$ 24,210

[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.