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Summary of Significant Accounting Policies and Estimates - Schedule of Contract Liabilities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)
Accounting Policies [Abstract]
Balance at January 1, 2018	$ 3,627
New performance obligations	1,921
Recognition of revenue as a result of satisfying performance obligations	(4,147)
Balance at December 31, 2018	1,401
Less non-current portion	(30)
Current portion at December 31, 2018	$ 1,371

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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