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[Member] Siemens Industry, Inc. 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and marketing Selling and Marketing Expense [Member] Weighted average number of Class A common shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Line cap additional threshold amount Debt Instrument, Covenant, Line Cap Additional Threshold Amount, Total Liquidity Debt Instrument, Covenant, Line Cap Additional Threshold Amount, Total Liquidity Total Accrued Liabilities Patents and licenses Patents And Licensing Agreements [Member] Patents And Licensing Agreements Other Commitment, Total Other Commitment Change in Contract Liability Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Operating expenses: Operating Expenses [Abstract] Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Purchase of property and equipment Payments to Acquire Property, Plant, and 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