Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details) - USD ($) $ in Thousands |
Sep. 30, 2015 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Dec. 31, 2013 |
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| Cash and Cash Equivalents [Line Items] | ||||
| Cash and cash equivalents | $ 94,565 | $ 44,816 | $ 39,748 | $ 14,550 |
| Cash | ||||
| Cash and Cash Equivalents [Line Items] | ||||
| Cash and cash equivalents | 61,986 | 37,314 | ||
| Available-for-Sale Investments | ||||
| Cash and Cash Equivalents [Line Items] | ||||
| Cash and cash equivalents | $ 32,579 | $ 7,502 |
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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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