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Summary of Significant Accounting Policies - Research and Development (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Research and Development
Customer-funded service sales	$ 363	$ 2,043
Customer-funded costs included in costs of service sales	$ 803	$ 2,935

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- Definition

Customer Funded Costs Of Goods Sold

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- Definition

Customer Funded Sales Revenue, Services, Net

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