Cash, Cash Equivalents and Investments - Schedule of Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Thousands |
Sep. 30, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|---|---|
| Cash, Cash Equivalents and Investments | ||||
| Cash and cash equivalents | $ 493,181 | $ 199,944 | $ 207,695 | $ 334,667 |
| Short-term investments | 6,249 | 37,109 | ||
| Long-term investments | 0 | 6,252 | ||
| Cash, cash equivalents and investments | 499,430 | 243,305 | ||
| Cash | ||||
| Cash, Cash Equivalents and Investments | ||||
| Cash and cash equivalents | 405,677 | 144,192 | ||
| Money market funds | ||||
| Cash, Cash Equivalents and Investments | ||||
| Cash and cash equivalents | 87,504 | 55,752 | ||
| Corporate debt securities | ||||
| Cash, Cash Equivalents and Investments | ||||
| Short-term investments | 6,249 | 37,109 | ||
| Long-term investments | $ 0 | $ 6,252 |
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- Definition Represents the amount of cash and cash equivalents and investments as of the balance sheet date. No definition available.
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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