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authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] Commitments and Contingencies Lessee, Operating Leases [Text Block] Termination Date Trading Arrangement Termination Date Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Weighted-average discount rate Operating Lease, Weighted Average Discount Rate, Percent Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Weighted-average shares used in computing net loss per share, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Amortization of debt issuance cost Amortization of Debt Issuance Costs Entity Tax Identification Number Entity Tax Identification Number Restructuring and Related Activities [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares issued (in shares) Common Stock, Shares, Issued Weighted-average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Accrued operational expenses Accrued Operational Expense, Current Accrued Operational Expense, Current Interest expense Interest expense Interest Expense, Nonoperating Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Other rental income Rental income related to fixed lease income Operating Lease, Lease Income Restructuring and impairment charges Total restructuring and impairment charges Restructuring Costs and Asset Impairment Charges Insider Trading Arrangements [Line Items] Security Exchange Name Security Exchange Name 2028 Lessor, Operating Lease, Payment to be Received, Year Two Total liabilities Liabilities Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Operating expenses: Operating Expenses [Abstract] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Statement [Line Items] Statement [Line Items] Gain on contract termination Gain on contract termination Gain (Loss) on Contract Termination Reduction of research and development expense License And Collaboration Agreement, Reduction Of Research And Development Expense License And Collaboration Agreement, Reduction Of Research And Development Expense Secured Mortgage Loan Secured Mortgage Loan [Member] Secured Mortgage Loan Schedule of Total Amount Expected to be Incurred and Liability Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Counterparty Name [Axis] Counterparty Name [Axis] Common Stock Common Stock [Member] Marketable securities Available-for-sale Debt Securities, Available-for-Sale Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Subsidiary, Sale of Stock [Line Items] Subsidiary, Sale of Stock [Line Items] Research and Development Arrangement, Contract to Perform for Others, Type [Domain] Research and Development Arrangement, Contract to Perform for Others, Type [Domain]