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Other Income (Expense), Net Other Income (Expense), Net (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Other Nonoperating Income (Expense), Net - Total | $ 5,857 | $ 34,735 | $ 14,089 | $ 38,022
Other Nonoperating Income (Expense), Net - Other | 57 | 1,379 | 89 | 1,366
kaleo [Member] |  |  |  |
Unrealized Gain (Loss) on Investments - kaleo | $ 5,800 | $ 21,500 | $ 14,000 | $ 24,800

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