Property and Equipment (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012
Property and equipment, net
Property and equipment, Gross	$ 144,135,000	$ 138,461,000
Less: accumulated depreciation and amortization	(97,551,000)	(91,097,000)
Property and equipment, Net	46,584,000	47,364,000
Computer Software [Member]
Property and equipment, net
Property and equipment, Gross	79,257,000	71,108,000
Office Equipment and Computers [Member]
Property and equipment, net
Property and equipment, Gross	59,953,000	62,366,000
Leasehold improvements [Member]
Property and equipment, net
Property and equipment, Gross	$ 4,925,000	$ 4,987,000

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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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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