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Date Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Benefits paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Dividends, Cash Dividends, Cash Expiration of net operating losses and credits Effective Income Tax Rate Reconciliation, Expiration of Net Operating Losses Effective Income Tax Rate Reconciliation, Expiration of Net Operating Losses Summary of property, plant and equipment Property, Plant and Equipment [Table Text Block] U.S. government bonds US Treasury Securities [Member] Remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Aggregate fair value of plan assets Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Plan Assets Money market funds Money Market Funds [Member] Number of quarterly settlement payments Number of Quarterly Settlement Payments Number of Quarterly 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acquired through operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Actuarial (gain) loss Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Foreign currency (gain) loss, net Foreign Currency Transaction Gain (Loss), before Tax Inventories Inventory, Policy [Policy Text Block] Income tax expense Income tax expense Income tax (benefit) expense Income Tax Expense (Benefit) Tax benefit from income tax holiday Income Tax Holiday, Aggregate Dollar Amount Cash, cash equivalents and restricted cash, beginning of period Cash, cash equivalents and restricted cash, end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Schedule of maturities of long-term debt Schedule of Maturities of Long-term Debt [Table Text Block] Debt Securities, 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payments (1) Payments for Employee Severance Lump-sum payments related to termination of employment (employees and directors), based on length of service, seniority and average monthly wages at the time of termination, which is not related to restructurings, pension plans or other post retirement benefit plans. Severance benefits are estimated assuming all eligible employees were to terminate their employment at the balance sheet date. 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