Property And Equipment, Net (Components Of Property And Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Property, Plant and Equipment [Abstract]
Equipment and software	$ 563,494	$ 512,754
Buildings and improvements	371,985	340,596
Furniture and fixtures	63,802	61,023
Construction in progress	75,670	68,707
Total property and equipment	1,074,951	983,080
Accumulated depreciation	(521,827)	(457,590)
Total property and equipment, net	$ 553,124	$ 525,490

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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