Cash, Cash Equivalents and Investments - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
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Cash and Cash Equivalents [Abstract] | ||||
Realized gains (losses) recognized on available-for-sale investments | $ 0.8 | $ 0.0 | $ 0.7 | $ 0.0 |
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- Definition Debt Securities, Available-For-Sale, Realized Gain (Loss) No definition available.
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- References No definition available.
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