| Debt - Schedule of Long-term Debt Instruments Additional Information (Details) | Dec. 31, 2018 | 
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| Senior Secured Revolving Credit Facility | |
| Debt Instrument [Line Items] | |
| Credit facility, unused capacity, commitment fee percentage | 0.25% | 
| X | ||||||||||
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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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| X | ||||||||||
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. No definition available. 
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| X | ||||||||||
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- Details 
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