Properties and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Land	$ 3,646	$ 3,646
Buildings and Improvements, Gross	15,084	15,957
computer equipment and software	273,137	247,168
Machinery and Equipment, Gross	132,030	117,232
furniture, fixtures and leasehold improvements	101,260	105,247
Property, Plant and Equipment, Gross	525,157	489,250
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(299,900)	(284,533)
Property, Plant and Equipment, Net	$ 225,257	$ 204,717

Capitalized gross amount of computer equipment and software as of the balance sheet date

No definition available.

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- Definition

Gross carrying value of long-lived, depreciable furniture, fixtures and leasehold improvements as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

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- Definition

Gross amount, as of the balance sheet date, of long-lived, depreciable assets that include building structures held for productive use including any addition, improvement, or renovation to the structure, such as interior masonry, interior flooring, electrical, and plumbing.

+ References

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- Definition

Carrying amount as of the balance sheet date of real estate held for productive use. This excludes land held for sale.

+ References

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- Definition

Gross amount, as of the balance sheet date, of long-lived, depreciable assets used in the production process to produce goods and services.

+ References

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- Definition

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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