Property and Equipment, Net - Schedule of Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 37,493	$ 35,424
Accumulated depreciation and amortization	(21,950)	(18,920)
Property and equipment, net	15,543	16,504
Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	13,451	13,273
Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	17,259	17,224
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,337	4,754
Project expenditures not yet in use [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,446	$ 173

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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