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Loans Held-for-sale, Fair Value Disclosure Capitalized software costs Payments for Software Federal tax at statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Net fair value and accrued interest adjustments Financing Receivable, Allowance for Credit Loss Initial cap price (in dollars per share) Debt Instrument, Convertible, Capped Calls Initial Cap Price Debt Instrument, Convertible, Capped Calls Initial Cap Price Significant Unobservable Inputs Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Section 162(m) limitation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Section 162(m) Limitation, Amount Effective Income Tax Rate Reconciliation, Nondeductible Expense, Section 162(m) Limitation, Amount Developed technology Developed Technology Rights [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Unamortized debt discount Debt Instrument, Unamortized Discount Purchases 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