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net Other Noncash Income (Expense) Additional Paid- in Capital Additional Paid-in Capital [Member] Short-term investments Short-Term Investments Arduino Arduino SA [Member] Arduino SA Unrecognized share-based compensation Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Cash and cash equivalents Cash and Cash Equivalent License and Other Revenue License and Other Revenue License And Other Revenue [Member] License And Other Revenue Equity method investments under fair value option Equity Method Investments, Fair Value Option Equity Method Investments, Fair Value Option Dividends from equity investments Proceeds from Equity Method Investment, Distribution Annual increase in shares authorized Share-Based Compensation Arrangement By Share-Based Payment Award, Annual Increase In Shares Authorized Share-Based Compensation Arrangement By Share-Based Payment Award, Annual Increase In Shares Authorized Depreciation and amortization 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Non-Cash Additions In Operating Lease Right-Of-Use Assets Republic of Korea KOREA, REPUBLIC OF Net income (loss) Net income (loss) Net income (loss) Net income (loss) Net Income (Loss) Attributable to Parent Proceeds from settlement of loans, including convertible loans Proceeds from Collection of Loans Receivable Valuation Technique, Discounted Cash Flow Valuation Technique, Discounted Cash Flow [Member] Statement [Table] Statement [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Shares held in EBT (in shares) Common Stock, Shares Held in Employee Trust, Shares Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Schedule of Reconciliation of Contract Liabilities Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Japan JAPAN Other Current Liabilities [Table] Other Current Liabilities [Table] Other Current Liabilities Financial commitments to investees, off balance sheet Financial Commitments To Investees, Off Balance Sheet Financial Commitments To Investees, Off Balance Sheet Derivative Instruments and Hedging Activities Disclosure [Abstract]