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Retained Earnings (Accumulated Deficit) Northeast US Northeast Region [Member] Investment payables Increase (Decrease) in Payable for Investment Purchased Net realized gains (losses) on investments Realized Gain (Loss), Investment and Derivative, Operating, after Tax Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Short-Term Debt [Line Items] Short-Term Debt [Line Items] Shares Common Stock [Member] Outstanding commitments to fund investments Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount Management And Services Fees, Range [Domain] Management And Services Fees, Range [Domain] Management And Services Fees, Range [Domain] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Net change in unrealized gains (losses) on investments Unrealized Gain (Loss), Investment and Derivative, Operating, after Tax Concentration risk, percentage Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Expense Support Agreement Expense Support Agreement [Member] Expense Support Agreement Investment Company Market [Axis] Investment Company Market [Axis] Investment Company Market Equity Awards Adjustments Equity Awards Adjustments [Member] Non-qualifying assets at fair value as a percent of net assets Investment Company, Non-Qualifying Assets At Fair Value, Percent Of Net Assets Investment Company, Non-Qualifying Assets At Fair Value, Percent Of Net Assets Total Liabilities and Net Assets Liabilities and Equity Net realized gains (losses) Realized Investment Gains (Losses) Employee Stock Option Share-Based Payment Arrangement, Option [Member] Purchases or originations Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Incentive fees on net investment income payable to affiliate Incentive Fee Payable, Income-Based Industry Sector [Domain] Industry Sector [Domain] Investment annual earnings before interest taxes depreciation and amortization Investment Annual Earnings Before Interest Taxes Depreciation And Amortization Investment Annual Earnings Before Interest Taxes Depreciation And Amortization Other liabilities Increase (Decrease) in Other Operating Liabilities Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Asset Class [Axis] Asset Class [Axis] Percentage of Net Assets Investment Owned, Net Assets, Percentage Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Tabular List, Table Tabular List [Table Text Block] Organization and Offering Expenses Start-up Activities, Cost Policy [Policy Text Block] Paid-in capital (unlimited shares authorized, 17,146,374 shares issued and outstanding Additional Paid in Capital Name Awards Close in Time to MNPI Disclosures, Individual Name Investment, Identifier [Axis] Investment, Identifier [Axis] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Valuation, Market Approach Valuation, Market Approach [Member] Dividends declared (in dollars per share) Investment Company, Distribution to Shareholders, Per Share Adjustment to Compensation: Adjustment to Compensation [Axis] Pharmaceuticals Pharmaceuticals [Member] Pharmaceuticals Dividends Payable [Line Items] Dividends Payable [Line Items] Dividends Payable [Table] Dividends Payable [Table] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest paid during the period Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Midwest US Midwest Region [Member] One-Month Anniversary One-Month Anniversary [Member] One-Month Anniversary Schedule of Stock by Class Schedule of Stock by Class [Table Text Block] Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Name Measure Name Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Transfers within Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Within Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Within Level 3 Paid in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Supplemental Information: Supplemental Cash Flow Elements [Abstract] Committed capital Investment Company, Committed Capital Excise tax expense (percent) Investment Company, Excise Tax Expense, Percent Investment Company, Excise Tax Expense, Percent Insurance Insurance Insurance [Member] Insurance Dividends [Axis] Dividends [Axis] Interest receivable Interest Receivable Name Trading Arrangement, Individual Name Investment Transfer to Other Liabilities Transfer from Investments Cash and cash equivalents Cash and Cash Equivalent SPV Credit Facility SPV Credit Facility [Member] SPV Credit Facility Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Investments, Debt and Equity Securities [Abstract] Management And Services Fees Range Two Management And Services Fees, Range Two [Member] Management And Services Fees, Range Two Entity Address, Address Line Two Entity Address, Address Line Two Total Investment Income Gross Investment Income, Operating Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Consumer Services Consumer Services Consumer Services [Member] Consumer Services Income taxes, including excise taxes Investment Income, Operating, Tax Expense (Benefit) Award Timing Method Award Timing Method [Text Block] Basis of Consolidation Consolidation, Policy [Policy Text Block] Net Increase (Decrease) in Cash and Cash Equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Line of credit facility committed loan Line Of Credit Facility, Committed Loan Amount Line Of Credit Facility, Committed Loan Amount Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Portfolio turnover Investment Company, Portfolio Turnover Members' capital Members' Capital Increase (Decrease) in net assets resulting from operations Increase (Decrease) in net assets resulting from operations Net Income (Loss) Attributable to Parent Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Total Investments [Member] Valuation Technique, Discounted Cash Flow Valuation Technique, Discounted Cash Flow [Member] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Total Investments and Cash Equivalents Investment Owned, Cost And Cash Equivalents, At Carrying Value Investment Owned, Cost And Cash Equivalents, At Carrying Value Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]