PROPERTY AND EQUIPMENT: (Details) (USD $)	12 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Property and Equipment
Property and equipment, gross	$ 822,439,000	$ 913,073,000
Less accumulated depreciation and amortization	591,687,000	659,700,000
Property and equipment, net	230,752,000	253,373,000
Depreciation expense on property and equipment	61,800,000	62,400,000	64,100,000
Land
Property and Equipment
Property and equipment, gross	6,737,000	6,737,000
Buildings and improvements
Property and Equipment
Property and equipment, gross	263,172,000	263,115,000
Data processing equipment
Property and Equipment
Property and equipment, gross	492,626,000	583,696,000
Office furniture and other equipment
Property and Equipment
Property and equipment, gross	$ 59,904,000	$ 59,525,000

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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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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