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Fair Value Measurements - Additional Information (Details) $ in Thousands | Dec. 31, 2019 USD ($) MutualFund | Dec. 31, 2018 USD ($) MutualFund
--- | --- | ---
Fair Value Assets Measured On Recurring Basis [Line Items] |  |
Number of mutual fund investment | MutualFund | 2 | 2
Non-Recurring [Member] |  |
Fair Value Assets Measured On Recurring Basis [Line Items] |  |
Liabilities, fair value disclosure, non-recurring | $ | $ 0 | $ 0

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- Definition Number of mutual fund investment. + References No definition available. + Details
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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. + References No definition available. + Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Details
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