Fair Value Measurement - Additional Information (Details) $ in Millions	Mar. 31, 2019 USD ($)
Accounts Payable and Accrued Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term portion of deferred payments	$ 0.4

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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Period Type:	duration