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SUMMARY OF ACCOUNTING POLICIES (Details) (USD $)
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12 Months Ended |
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Mar. 31, 2015
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Mar. 31, 2014
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Mar. 31, 2013
item
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Mar. 31, 2012
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| Concentration of credit risk |
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| Number of non-core businesses finalized for sale |
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2 |
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| Allowance for doubtful accounts |
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| Balance at Beginning of Year |
$ 5,529,000 |
$ 10,877,000 |
$ 38,905,000 |
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| Charged to Costs and Expenses |
650,000 |
2,029,000 |
6,643,000 |
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| Deductions/Write-offs |
(1,645,000) |
(7,377,000) |
(34,671,000) |
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| Balance at End of Year |
4,534,000 |
5,529,000 |
10,877,000 |
38,905,000 |
| Amount of direct deductions/write-downs for accounts receivable balances reclassified to non-current assets and carried net of specific reserve |
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5,800,000 |
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| Provision for doubtful accounts related to a distressed customer |
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$ 28,000,000 |
| Net sales | Customer concentration risk |
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| Concentration of credit risk |
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| Concentration risk percentage |
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0.00% |
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| Net sales | Customer concentration risk | Customer one |
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| Concentration of credit risk |
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| Concentration risk percentage |
17.00% |
13.00% |
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| Net sales | Customer concentration risk | Ten largest customers |
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| Concentration of credit risk |
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| Concentration risk percentage |
50.00% |
52.00% |
47.00% |
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| Services Revenue | Maximum |
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| Concentration of credit risk |
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| Concentration risk percentage |
10.00% |
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| Accounts Receivable | Customer one |
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| Concentration of credit risk |
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| Concentration risk percentage |
15.00% |
14.00% |
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