FIXED ASSETS, NET (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Fixed assets
Fixed assets, gross	$ 110,110	$ 113,773
Less: accumulated depreciation	84,748	94,824
Fixed assets, net	25,362	18,949
Depreciation expense	10,200	11,467	14,016
Computer equipment
Fixed assets
Fixed assets, gross	36,152	41,827
Computer software
Fixed assets
Fixed assets, gross	31,466	32,645
Leasehold improvements
Fixed assets
Fixed assets, gross	31,339	27,604
Office equipment
Fixed assets
Fixed assets, gross	5,819	6,331
Furniture and fixtures
Fixed assets
Fixed assets, gross	$ 5,334	$ 5,366

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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