FIXED ASSETS (Details) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Fixed assets
Fixed assets, gross	$ 1,516,092,000	$ 1,532,152,000
Less: Accumulated depreciation and amortization	(1,295,048,000)	(1,275,082,000)
Total fixed assets, net	221,044,000	257,070,000
Depreciation expense	67,600,000	68,900,000	56,800,000
Asset impairment charges	0	0	11,922,000
Land
Fixed assets
Fixed assets, gross	14,489,000	14,970,000
Buildings and improvements
Fixed assets
Fixed assets, gross	510,468,000	533,205,000
Machinery and equipment
Fixed assets
Fixed assets, gross	966,756,000	965,451,000
Furniture and fixtures
Fixed assets
Fixed assets, gross	21,636,000	17,906,000
Construction-in-progress
Fixed assets
Fixed assets, gross	$ 2,743,000	$ 620,000

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 charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

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- Definition

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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