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Schedule II - Valuation and Qualifying Accounts Schedule II - Valuation and Qualifying Accounts (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||||||||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Allowance for Doubtful Accounts [Member] | |||||||||
| Valuation Allowances and Reserves, Balance | $ 55,015 | $ 54,531 | $ 104,897 | $ 62,030 | |||||
| Valuation Allowances and Reserves, Charged to Cost and Expense | 114,784 | 111,460 | 214,454 | ||||||
| Valuation Allowances and Reserves, Deductions | 114,300 | [1] | 161,826 | [1] | 171,587 | [1] | |||
| Valuation Allowance of Deferred Tax Assets [Member] | |||||||||
| Valuation Allowances and Reserves, Balance | 4,868,504 | 4,335,913 | 330,739 | 180,545 | |||||
| Valuation Allowances and Reserves, Charged to Cost and Expense | 610,467 | 4,052,410 | 151,286 | ||||||
| Valuation Allowances and Reserves, Deductions | $ 77,876 | [1] | $ 47,236 | [1] | $ 1,092 | [1] | |||
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