Property And Equipment (Details) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2012	Nov. 30, 2011
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 127,447	$ 129,234
Less accumulated depreciation and amortization	(64,376)	(63,028)
Property and equipment, net	63,071	66,206
Computer equipment and software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	58,447	60,797
Land, buildings and leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	60,282	58,957
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 8,718	$ 9,480

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, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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- Definition

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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