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Fair Value Measurements - Additional Information (Details) | Dec. 31, 2018
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1.125% Call Option |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Fixed interest rate on derivative | 1.125%

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- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
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Period Type: | instant

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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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- Details
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Balance Type: |
Period Type: |