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Schedule II VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $)
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12 Months Ended | |||||||||||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Deferred Tax Asset Valuation Allowance [Member]
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| Operating Loss Carryforwards [Line Items] | ||||||||||||
| Deferred tax asset prior period reclass | $ (12,500,000) | $ (12,500,000) | ||||||||||
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Allowance for Doubtful Accounts [Member]
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| Valuation allowances and reserves [Roll Forward] | ||||||||||||
| Balance at Beginning of Period | 16,986,000 | 10,898,000 | 8,230,000 | |||||||||
| Charges of Costs, Expenses and Other | 6,480,000 | 6,440,000 | 4,666,000 | |||||||||
| Write-off of Accounts Receivable | (4,155,000) | (243,000) | (2,342,000) | |||||||||
| Other | 483,000 | [1] | (109,000) | [1] | 344,000 | [1] | ||||||
| Balance at End of Period | 19,794,000 | 16,986,000 | 10,898,000 | |||||||||
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Deferred Tax Asset Valuation Allowance [Member]
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| Valuation allowances and reserves [Roll Forward] | ||||||||||||
| Balance at Beginning of Period | 336,799,000 | 323,670,000 | 204,294,000 | [2] | ||||||||
| Charges of Costs, Expenses and Other | 79,214,000 | [3] | 7,412,000 | [3] | 55,269,000 | [3] | ||||||
| Deletions | 0 | 0 | 0 | |||||||||
| Other | 9,391,000 | [3] | 5,717,000 | [3] | 64,107,000 | [3] | ||||||
| Balance at End of Period | $ 425,404,000 | $ 336,799,000 | $ 323,670,000 | |||||||||
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