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Fair Value Measurements Financial Assets and Liabilities, Not Measured at Fair Value (Details) (Cost-method Investments [Member], USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2014
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Dec. 31, 2013
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Cost Method Investments, Fair Value Disclosure | $ 17,593 | $ 15,573 |
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Cost-method Investments [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Cost Method Investments | $ 15,092 | $ 15,788 |