Property And Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Land and improvements	$ 122,258	$ 119,171
Buildings and improvements	3,036,018	2,958,044
Equipment and software	318,314	301,786
Office furniture and fixtures	30,805	30,251
Construction in progress	60,572	99,408
Property and equipment, gross	3,567,967	3,508,660
Less: Accumulated depreciation	(999,176)	(899,920)
Property, and Equipment, total	$ 2,568,791	$ 2,608,740

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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