Schedule of Investments - USD ($)		6 Months Ended		12 Months Ended
		Jun. 30, 2024		Dec. 31, 2023
Investments [Abstract]
Amortized cost	[1]	$ 337,496,226		$ 378,081,148	[2],[3],[4],[5],[6]
Fair value	[7]	$ 325,772,154		$ 376,992,972	[2],[3],[4],[5],[6]
Percentage of net assets		160.00%		197.90%
Investment, Identifier [Axis]: 48forty Intermediate Holdings, Inc. First Lien Senior Secured Term Loan SOFR Spread 6.10% Interest Rate 11.43% Due 12/1/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[4],[8],[9],[10],[11],[12],[13]			star:Four8fortyIntermediateHoldingsIncFirstLienSeniorSecuredTermLoanSOFRSpread610InterestRate1101Due1212026Member
Investment, Significant Unobservable Input [true false]	[4]			true
Basis spread on variable rate	[4],[14]			6.10%
Interest Rate	[4]			11.45%
Acquisition date	[4]			Oct. 11, 2022
Maturity date	[4]			Dec. 01, 2026
Principal, Shares, Units	[4]			$ 14,812,030
Amortized cost	[1],[4]			14,299,832
Fair value	[4],[7]			$ 13,807,774
Percentage of net assets	[4]			7.20%
Investment, Identifier [Axis]: 48forty Intermediate Holdings, Inc. First Lien Senior Secured Term Loan SOFR Spread 6.10% Interest Rate 11.44% Due 12/1/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[15]	star:Four8fortyIntermediateHoldingsIncFirstLienSeniorSecuredTermLoanSOFRSpread610InterestRate1144Due1212026Member
Investment, Significant Unobservable Input [true false]	[15]	true
Basis spread on variable rate	[14],[15]	6.10%
Interest Rate	[15]	11.44%
Acquisition date	[15]	Oct. 11, 2022
Maturity date	[15]	Dec. 01, 2026
Principal, Shares, Units	[15]	$ 14,736,842
Amortized cost	[1],[15]	14,273,291
Fair value	[7],[15]	$ 13,669,895
Percentage of net assets	[15]	6.70%
Investment, Identifier [Axis]: Aerospace & Defense First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:AerospaceDefenseFirstLienSeniorSecuredTermLoanMember		star:AerospaceDefenseFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 7,828,281
Amortized cost	[1]			7,760,936
Fair value	[7]			$ 7,394,161
Percentage of net assets				3.90%
Investment, Identifier [Axis]: Aerospace & Defense Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:AerospaceDefenseWarrantsAndOtherEquitySecuritiesMember		star:AerospaceDefenseWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 176
Amortized cost	[1]			142,485
Fair value	[7]			$ 0
Percentage of net assets				0.00%
Investment, Identifier [Axis]: Aerospace & Defense Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 176
Amortized cost	[1]	142,485
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Aerospace Defense First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 8,385,644
Amortized cost	[1]	8,308,819
Fair value	[7]	$ 7,573,911
Percentage of net assets		4.00%
Investment, Identifier [Axis]: Arrow Home Health, LLC (dba Acara Home Health) - Class 1 Units Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:ArrowHomeHealthLLCDbaAcaraHomeHealthClass1UnitsPreferredEquitySecuritiesMember	[16],[17]	star:ArrowHomeHealthLLCDbaAcaraHomeHealthClass1UnitsPreferredEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true	[16],[17]	true
Basis spread on variable rate	[14],[18]	0.00%	[16],[17]	0.00%
Interest Rate	[18]	0.00%	[16],[17]	0.00%
Acquisition date	[18]	Nov. 13, 2023	[16],[17]	Nov. 13, 2023
Principal, Shares, Units	[18]	$ 56,005	[16],[17]	$ 56,005
Amortized cost	[1],[18]	56,005	[16],[17]	56,005
Fair value	[7],[18]	$ 112,010	[16],[17]	$ 112,010
Percentage of net assets	[18]	0.10%	[16],[17]	0.10%
Investment, Identifier [Axis]: Arrow Home Health, LLC (dba Acara Home Health) - Class A Units Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[16],[18]	star:ArrowHomeHealthLLCDbaAcaraHomeHealthClassAUnitsPreferredEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[16],[18]	true
Basis spread on variable rate	[14],[16],[18]	0.00%
Interest Rate	[16],[18]	0.00%
Acquisition date	[16],[18]	Mar. 19, 2021
Principal, Shares, Units	[16],[18]	$ 571,080
Amortized cost	[1],[16],[18]	564,321
Fair value	[7],[16],[18]	$ 235,321
Percentage of net assets	[16],[18]	0.10%
Investment, Identifier [Axis]: Arrow Home Health, LLC (dba Acara Home Health) - Class A Units Preferred Equity Securities Interest Rate 10.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18],[19]			star:ArrowHomeHealthLLCDbaAcaraHomeHealthClassAUnitsPreferredEquitySecuritiesInterestRate1000PIKMember
Investment, Significant Unobservable Input [true false]	[18],[19]			true
Basis spread on variable rate	[14],[18],[19]			0.00%
PIK Interest Rate	[18],[19]			10.00%
Acquisition date	[18],[19]			Mar. 19, 2021
Principal, Shares, Units	[18],[19]			$ 571,080
Amortized cost	[1],[18],[19]			564,321
Fair value	[7],[18],[19]			$ 202,097
Percentage of net assets	[18],[19]			0.10%
Investment, Identifier [Axis]: Arrow Home Health, LLC (dba Acara Home Health)First Lien Senior Secured Term Loan SOFR Spread 8.50% Interest Rate 13.82% Due 3/19/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[16],[20]	star:ArrowHomeHealthLLCDbaAcaraHomeHealthFirstLienSeniorSecuredTermLoanSOFRSpread850InterestRate1382Due3192026Member
Investment, Significant Unobservable Input [true false]	[16],[20]	true
Basis spread on variable rate	[14],[16],[20]	8.50%
Interest Rate	[16],[20]	13.82%
Acquisition date	[16],[20]	Mar. 19, 2021
Maturity date	[16],[20]	Mar. 19, 2026
Principal, Shares, Units	[16],[20]	$ 797,086
Amortized cost	[1],[16],[20]	779,672
Fair value	[7],[16],[20]	$ 765,202
Percentage of net assets	[16],[20]	0.40%
Investment, Identifier [Axis]: Arrow Home Health, LLC (dba Acara Home Health)First Lien Senior Secured Term Loan SOFR Spread 8.50% Interest Rate 13.83% Due 3/19/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13],[19]			star:ArrowHomeHealthLLCDbaAcaraHomeHealthFirstLienSeniorSecuredTermLoanSOFRSpread850InterestRate1341Due3192026Member
Investment, Significant Unobservable Input [true false]	[5],[19]			true
Basis spread on variable rate	[5],[14],[19]			8.50%
Interest Rate	[5],[19]			13.83%
Acquisition date	[5],[19]			Mar. 19, 2021
Maturity date	[5],[19]			Mar. 19, 2026
Principal, Shares, Units	[5],[19]			$ 797,086
Amortized cost	[1],[5],[19]			780,141
Fair value	[5],[7],[19]			$ 748,782
Percentage of net assets	[5],[19]			0.40%
Investment, Identifier [Axis]: BB-HH Platform, Inc. (dba Preferred Care Home Health) First Lien Senior Secured Term Loan SOFR Spread 7.00% Plus 1.50 PIK Interest Rate 12.32 Plus 1.50% PIK Due 5/16/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[20]	star:BBHHPlatformIncDbaPreferredCareHomeHealthFirstLienSeniorSecuredTermLoanSOFRSpread700Plus150PIKInterestRate1232Plus150PIKDue5162028Member
Investment, Significant Unobservable Input [true false]	[3],[20]	true
Basis spread on variable rate	[3],[14],[20]	7.00%
Paid in Kind Basis Spread Variable Rate	[3],[14],[20]	1.50%
Interest Rate	[3],[20]	12.32%
PIK Interest Rate	[3],[20]	1.50%
Acquisition date	[3],[20]	May 16, 2023
Maturity date	[3],[20]	May 16, 2028
Principal, Shares, Units	[3],[20]	$ 6,728,201
Amortized cost	[1],[3],[20]	6,570,886
Fair value	[3],[7],[20]	$ 6,711,380
Percentage of net assets	[3],[20]	3.30%
Investment, Identifier [Axis]: BB-HH Platform, Inc. (dba Preferred Care Home Health) First Lien Senior Secured Term Loan SOFR Spread 7.00% Plus 1.50 PIK Interest Rate 12.33 Plus 1.50% PIK Due 5/16/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:BBHHPlatformIncDbaPreferredCareHomeHealthFirstLienSeniorSecuredTermLoanSOFRSpread700CashPlus150PIKInterestRate1233CashPlus150PIKDue5162028Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			7.00%
Paid in Kind Basis Spread Variable Rate	[5],[14]			1.50%
Interest Rate	[5]			12.33%
PIK Interest Rate	[5]			1.50%
Acquisition date	[5]			May 16, 2023
Maturity date	[5]			May 16, 2028
Principal, Shares, Units	[5]			$ 6,661,564
Amortized cost	[1],[5]			6,476,196
Fair value	[5],[7]			$ 6,600,944
Percentage of net assets	[5]			3.50%
Investment, Identifier [Axis]: CHG Parent Holding LLC (dba Coop Home Goods) Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:CHGParentHoldingLLCDbaCoopHomeGoodsWarrantsAndOtherEquitySecuritiesMember		star:CHGParentHoldingLLCDbaCoopHomeGoodsWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true		true
Basis spread on variable rate	[14],[18]	0.00%		0.00%
Interest Rate	[18]	0.00%		0.00%
Acquisition date	[18]	Jun. 18, 2021		Jun. 18, 2021
Principal, Shares, Units	[18]	$ 535,714		$ 535,714
Amortized cost	[1],[18]	535,714		535,714
Fair value	[7],[18]	$ 304,821		$ 99,286
Percentage of net assets	[18]	0.10%		0.10%
Investment, Identifier [Axis]: CSI IT, LLC (dba Consulting Solutions) First Lien Senior Secured Term Loan SOFR Spread 10.76% Interest Rate 16.06% Due 1/29/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:CSIITLLCDbaConsultingSolutionsFirstLienSeniorSecuredTermLoanLIBORSpread1050InterestRate1569Due1292026Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			10.76%
Interest Rate	[5]			16.09%
Acquisition date	[5]			Jan. 29, 2021
Maturity date	[5]			Jan. 29, 2026
Principal, Shares, Units	[5]			$ 13,329,812
Amortized cost	[1],[5]			13,139,755
Fair value	[5],[7]			$ 13,196,514
Percentage of net assets	[5]			6.90%
Investment, Identifier [Axis]: CSI IT, LLC (dba Consulting Solutions) First Lien Senior Secured Term Loan SOFR Spread 10.76% Interest Rate 16.09% Due 1/29/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:CSIITLLCDbaConsultingSolutionsFirstLienSeniorSecuredTermLoanSOFRSpread1076InterestRate1609Due1292026Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	10.76%
Interest Rate	[20]	16.09%
Acquisition date	[20]	Jan. 29, 2021
Maturity date	[20]	Jan. 29, 2026
Principal, Shares, Units	[20]	$ 12,944,370
Amortized cost	[1],[20]	12,803,522
Fair value	[7],[20]	$ 12,959,903
Percentage of net assets	[20]	6.40%
Investment, Identifier [Axis]: Capone Holdings JV, LLC (dba LaSalle Staffing) Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:CaponeHoldingsJVLLCDbaLaSalleStaffingPreferredEquitySecuritiesMember	[16]	star:CaponeHoldingsJVLLCDbaLaSalleStaffingPreferredEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true	[16]	true
Basis spread on variable rate	[14],[18]	0.00%	[16]	0.00%
Interest Rate	[18]	0.00%	[16]	0.00%
Acquisition date	[18]	Feb. 15, 2022	[16]	Feb. 15, 2022
Principal, Shares, Units	[18]	$ 4,000,000	[16]	$ 4,000,000
Amortized cost	[1],[18]	4,000,000	[16]	4,000,000
Fair value	[7],[18]	$ 6,519,467	[16]	$ 6,047,467
Percentage of net assets	[18]	3.30%	[16]	3.20%
Investment, Identifier [Axis]: Caregility Corporation First Lien Senior Secured Term Loan SOFR Spread 9.26% Interest Rate 3.00% Cash Plus 11.59% PIK Due 1/31/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13],[19]			star:CaregilityCorporationFirstLienSeniorSecuredTermLoanSOFRSpread926InterestRate300CashPlus1159PIKDue1312025Member
Investment, Significant Unobservable Input [true false]	[5],[19]			true
Basis spread on variable rate	[5],[14],[19]			9.26%
Interest Rate	[5],[19]			3.00%
PIK Interest Rate	[5],[19]			11.59%
Acquisition date	[5],[19]			Dec. 29, 2021
Maturity date	[5],[19]			Jan. 31, 2025
Principal, Shares, Units	[5],[19]			$ 2,244,216
Amortized cost	[1],[5],[19]			1,933,490
Fair value	[5],[7],[19]			$ 2,244,216
Percentage of net assets	[5],[19]			1.20%
Investment, Identifier [Axis]: Caregility Corporation First Lien Senior Secured Term Loan SOFR Spread 9.26% Interest Rate 7.00% Cash Plus 7.59% PIK Due 1/31/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[16],[20]	star:CaregilityCorporationFirstLienSeniorSecuredTermLoanSOFRSpread926InterestRate700CashPlus759PIKDue1312025Member
Investment, Significant Unobservable Input [true false]	[16],[20]	true
Basis spread on variable rate	[14],[16],[20]	9.26%
Interest Rate	[16],[20]	7.00%
PIK Interest Rate	[16],[20]	7.59%
Acquisition date	[16],[20]	Dec. 29, 2021
Maturity date	[16],[20]	Jan. 31, 2025
Principal, Shares, Units	[16],[20]	$ 2,355,077
Amortized cost	[1],[16],[20]	2,055,992
Fair value	[7],[16],[20]	$ 2,355,077
Percentage of net assets	[16],[20]	1.20%
Investment, Identifier [Axis]: Caregility Corporation Series A Units Preferred Equity Securities Interest Rate 8.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17]	star:CaregilityCorporationSeriesAUnitsPreferredEquitySecuritiesInterestRate800PIKMember	[16]	star:CaregilityCorporationPreferredEquitySecuritiesMember, star:CaregilityCorporationSeriesAUnitsPreferredEquitySecuritiesInterestRate800PIKMember	[19]
Investment, Significant Unobservable Input [true false]	[17]	true	[16]	true	[19]
Basis spread on variable rate	[14],[17]	0.00%	[16]	0.00%	[19]
PIK Interest Rate	[17]	8.00%	[16]	8.00%	[19]
Acquisition date	[17]	Dec. 31, 2022	[16]	Dec. 31, 2022	[19]
Principal, Shares, Units	[17]	$ 151,018	[16]	$ 151,018	[19]
Amortized cost	[1],[17]	0	[16]	0	[19]
Fair value	[7],[17]	$ 1,387,216	[16]	$ 1,383,250	[19]
Percentage of net assets	[17]	0.70%	[16]	0.70%	[19]
Investment, Identifier [Axis]: Caregility Corporation Series B Units Preferred Equity Securities Interest Rate 8.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17]	star:CaregilityCorporationSeriesBUnitsPreferredEquitySecuritiesInterestRate800PIKMember	[16]	star:CaregilityCorporationSeriesBUnitsPreferredEquitySecuritiesInterestRate800PIKMember	[19]
Investment, Significant Unobservable Input [true false]	[17]	true	[16]	true	[19]
Basis spread on variable rate	[14],[17]	0.00%	[16]	0.00%	[19]
PIK Interest Rate	[17]	8.00%	[16]	8.00%	[19]
Acquisition date	[17]	Jul. 03, 2023	[16]	Jul. 03, 2023	[19]
Principal, Shares, Units	[17]	$ 446,689	[16]	$ 446,689	[19]
Amortized cost	[1],[17]	3,591,494	[16]	3,591,494	[19]
Fair value	[7],[17]	$ 4,206,687	[16]	$ 4,108,869	[19]
Percentage of net assets	[17]	2.00%	[16]	2.20%	[19]
Investment, Identifier [Axis]: Caregility Corporation Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:CaregilityCorporationWarrantsAndOtherEquitySecuritiesMember	[16]	star:CaregilityCorporationWarrantsAndOtherEquitySecuritiesMember	[19]
Investment, Significant Unobservable Input [true false]		true	[16]	true	[19]
Basis spread on variable rate	[14]	0.00%	[16]	0.00%	[19]
Interest Rate		0.00%	[16]	0.00%	[19]
Acquisition date		Dec. 29, 2021	[16]	Dec. 29, 2021	[19]
Principal, Shares, Units		$ 267,801	[16]	$ 267,801	[19]
Amortized cost	[1]	443,392	[16]	443,392	[19]
Fair value	[7]	$ 0	[16]	$ 571,189	[19]
Percentage of net assets		0.00%	[16]	0.30%	[19]
Investment, Identifier [Axis]: Channel Factory Holdings, LLC Preferred Equity Securities Interest Rate 5.00% Plus 5.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17],[18]	star:ChannelFactoryHoldingsLLCPreferredEquitySecuritiesInterestRate500Plus500PIKMember		star:ChannelFactoryHoldingsLLCPreferredEquitySecuritiesInterestRate500Plus500PIKMember
Investment, Significant Unobservable Input [true false]	[17],[18]	true		true
Basis spread on variable rate	[14],[17],[18]	0.00%		0.00%
Interest Rate	[17],[18]	5.00%		5.00%
PIK Interest Rate	[17],[18]	5.00%		5.00%
Acquisition date	[17],[18]	Aug. 27, 2020		Aug. 27, 2020
Principal, Shares, Units	[17],[18]	$ 2,381,867		$ 2,381,867
Amortized cost	[1],[17],[18]	2,442,592		2,442,592
Fair value	[7],[17],[18]	$ 4,948,862		$ 4,154,769
Percentage of net assets	[17],[18]	2.40%		2.20%
Investment, Identifier [Axis]: Chemicals First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ChemicalsFirstLienSeniorSecuredTermLoanMember		star:ChemicalsFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 14,962,500
Amortized cost	[1]			14,538,407
Fair value	[7]			$ 14,538,406
Percentage of net assets				7.50%
Investment, Identifier [Axis]: Chemicals First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 14,887,500
Amortized cost	[1]	14,581,949
Fair value	[7]	$ 14,859,213
Percentage of net assets		7.30%
Investment, Identifier [Axis]: Chicken Soup For The Soul, LLC First Lien Senior Secured Term Loan SOFR Spread 8.60% Interest Rate 13.95% Due 3/31/2024
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[4],[8],[9],[10],[11],[12],[13]			star:ChickenSoupForTheSoulLLCFirstLienSeniorSecuredTermLoanLIBORSpread850InterestRate1336Due3312024Member
Investment, Significant Unobservable Input [true false]	[4]			true
Basis spread on variable rate	[4],[14]			8.60%
Interest Rate	[4]			13.95%
Acquisition date	[4]			Oct. 29, 2021
Maturity date	[4]			Mar. 31, 2024
Principal, Shares, Units	[4]			$ 6,380,856
Amortized cost	[1],[4]			6,368,361
Fair value	[4],[7]			$ 5,756,809
Percentage of net assets	[4]			3.00%
Investment, Identifier [Axis]: Chicken Soup for The Soul, LLC First Lien Senior Secured Term Loan SOFR Spread 8.60% Interest Rate 13.94% Due 3/31/2024
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[15],[21],[22]	star:ChickenSoupForTheSoulLLCFirstLienSeniorSecuredTermLoanSOFRSpread860InterestRate1394Due3312024Member
Investment, Significant Unobservable Input [true false]	[15],[21],[22]	true
Basis spread on variable rate	[14],[15],[21],[22]	8.60%
Interest Rate	[15],[21],[22]	13.94%
Acquisition date	[15],[21],[22]	Oct. 29, 2021
Maturity date	[15],[21],[22]	Mar. 31, 2024
Principal, Shares, Units	[15],[21],[22]	$ 6,380,856
Amortized cost	[1],[15],[21],[22]	6,380,856
Fair value	[7],[15],[21],[22]	$ 1,730,488
Percentage of net assets	[15],[21],[22]	0.80%
Investment, Identifier [Axis]: Clearview Systems, LLC (dba Rip-It) First Lien Senior Secured Term Loan SOFR Spread 7.65% Interest Rate 12.97% Plus 3.00% PIK Due 10/10/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[20]	star:ClearviewSystemsLLCDbaRipItFirstLienSeniorSecuredTermLoanSOFRSpread765InterestRate1297Plus300PIKDue10102027Member
Investment, Significant Unobservable Input [true false]	[3],[20]	true
Basis spread on variable rate	[3],[14],[20]	7.65%
Interest Rate	[3],[20]	12.97%
PIK Interest Rate	[3],[20]	3.00%
Acquisition date	[3],[20]	Oct. 11, 2022
Maturity date	[3],[20]	Oct. 10, 2027
Principal, Shares, Units	[3],[20]	$ 6,541,002
Amortized cost	[1],[3],[20]	6,438,197
Fair value	[3],[7],[20]	$ 5,920,915
Percentage of net assets	[3],[20]	2.90%
Investment, Identifier [Axis]: Clearview Systems, LLC (dba Rip-It) First Lien Senior Secured Term Loan SOFR Spread 7.65% Interest Rate 12.98% Due 10/11/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[5],[8],[9],[10],[11],[12],[13]			star:ClearviewSystemsLLCDbaRipItFirstLienSeniorSecuredTermLoanSOFRSpread765InterestRate1298Due10112027Member
Investment, Significant Unobservable Input [true false]	[3],[5]			true
Basis spread on variable rate	[3],[5],[14]			7.65%
Interest Rate	[3],[5]			12.98%
Acquisition date	[3],[5]			Oct. 11, 2022
Maturity date	[3],[5]			Oct. 11, 2027
Principal, Shares, Units	[3],[5]			$ 6,452,101
Amortized cost	[1],[3],[5]			6,333,920
Fair value	[3],[5],[7]			$ 6,367,578
Percentage of net assets	[3],[5]			3.30%
Investment, Identifier [Axis]: Commercial Services & Supplies First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:CommercialServicesSuppliesFirstLienSeniorSecuredTermLoanMember		star:CommercialServicesSuppliesFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 11,255,312
Amortized cost	[1]			11,128,632
Fair value	[7]			$ 11,055,036
Percentage of net assets				5.70%
Investment, Identifier [Axis]: Commercial Services & Supplies First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 3,978,222
Amortized cost	[1]	3,935,135
Fair value	[7]	$ 3,728,981
Percentage of net assets		1.80%
Investment, Identifier [Axis]: Commercial Services and Supplies Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:CommercialServicesAndSuppliesPreferredEquitySecuritiesMember		star:CommercialServicesAndSuppliesPreferredEquitySecuritiesMember
Principal, Shares, Units				$ 192,444
Amortized cost	[1]			183,612
Fair value	[7]			$ 227,311
Percentage of net assets				0.10%
Investment, Identifier [Axis]: Commercial Services and Supplies Preferred Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 192,443
Amortized cost	[1]	183,612
Fair value	[7]	$ 212,072
Percentage of net assets		0.10%
Investment, Identifier [Axis]: Consolidated Machine & Tool Holdings, LLC First Lien Senior Secured Term Loan Interest Rate 20.00% PIK Due 1/15/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17]	star:ConsolidatedMachineToolHoldingsLLCFirstLienSeniorSecuredTermLoanInterestRate2000PIKDue1152025Member	[22],[23],[24]	star:ConsolidatedMachineAndToolHoldingsLLCFirstLienSeniorSecuredTermLoanSOFRSpread2000PIKDue1152025Member	[6],[25]
Investment, Significant Unobservable Input [true false]	[17]	true	[22],[23],[24]	true	[6],[25]
Basis spread on variable rate	[14],[17]	0.00%	[22],[23],[24]	0.00%	[6],[25]
PIK Interest Rate	[17]	20.00%	[22],[23],[24]	20.00%	[6],[25]
Acquisition date	[17]	Nov. 22, 2023	[22],[23],[24]	Nov. 22, 2023	[6],[25]
Maturity date	[17]	Jan. 15, 2025	[22],[23],[24]	Jan. 15, 2025	[6],[25]
Principal, Shares, Units	[17]	$ 708,154	[22],[23],[24]	$ 440,629	[6],[25]
Amortized cost	[1],[17]	697,819	[22],[23],[24]	437,211	[6],[25]
Fair value	[7],[17]	$ 639,604	[22],[23],[24]	$ 437,210	[6],[25]
Percentage of net assets	[17]	0.40%	[22],[23],[24]	0.20%	[6],[25]
Investment, Identifier [Axis]: Consolidated Machine & Tool Holdings, LLC First Lien Senior Secured Term Loan SOFR Spread 11.01% Interest Rate 16.34% PIK Due 1/15/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20],[22],[24]	star:ConsolidatedMachineToolHoldingsLLCFirstLienSeniorSecuredTermLoanSOFRSpread1101InterestRate1634PIKDue1152025Member
Investment, Significant Unobservable Input [true false]	[20],[22],[24]	true
Basis spread on variable rate	[14],[20],[22],[24]	11.01%
PIK Interest Rate	[20],[22],[24]	16.34%
Acquisition date	[20],[22],[24]	Jan. 15, 2020
Maturity date	[20],[22],[24]	Jan. 15, 2025
Principal, Shares, Units	[20],[22],[24]	$ 6,093,316
Amortized cost	[1],[20],[22],[24]	6,041,963
Fair value	[7],[20],[22],[24]	$ 5,503,482
Percentage of net assets	[20],[22],[24]	2.80%
Investment, Identifier [Axis]: Consolidated Machine & Tool Holdings, LLC Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:ConsolidatedMachineToolHoldingsLLCWarrantsAndOtherEquitySecuritiesMember	[26]	star:ConsolidatedMachineToolHoldingsLLCWarrantsAndOtherEquitySecuritiesMember	[27]
Investment, Significant Unobservable Input [true false]	[18]	true	[26]	true	[27]
Basis spread on variable rate	[14],[18]	0.00%	[26]	0.00%	[27]
Interest Rate	[18],[26]	0.00%		0.00%	[27]
Acquisition date	[18]	Jan. 15, 2020	[26]	Jan. 15, 2020	[27]
Principal, Shares, Units	[18]	$ 176	[26]	$ 176	[27]
Amortized cost	[1],[18]	142,485	[26]	142,485	[27]
Fair value	[7],[18]	$ 0	[26]	$ 0	[27]
Percentage of net assets	[18]	0.00%	[26]	0.00%	[27]
Investment, Identifier [Axis]: Consolidated Machine and Tool Holdings, LLC First Lien Senior Secured Term Loan SOFR Spread 11.00% Due 6/30/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17],[22]	star:ConsolidatedMachineAndToolHoldingsLLCFirstLienSeniorSecuredTermLoanSOFRSpread1100Due6302025Member
Investment, Significant Unobservable Input [true false]	[17],[22]	true
Basis spread on variable rate	[14],[17],[22]	0.00%
Interest Rate	[17],[22]	11.00%
Acquisition date	[17],[22]	May 22, 2024
Maturity date	[17],[22]	Jun. 30, 2025
Principal, Shares, Units	[17],[22]	$ 289,838
Amortized cost	[1],[17],[22]	285,608
Fair value	[7],[17],[22]	$ 261,781
Percentage of net assets	[17],[22]	0.10%
Investment, Identifier [Axis]: Consolidated Machine and Tool Holdings, LLC First Lien Senior Secured Term Loan SOFR Spread 11.01% Interest rate 11.44% Cash 4.90% PIK Due 1/15/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[6],[8],[9],[10],[11],[12],[13]			star:ConsolidatedMachineAndToolHoldingsLLCFirstLienSeniorSecuredTermLoanSOFRSpread1101InterestRate1144Cash490PIKDue1152025Member
Investment, Significant Unobservable Input [true false]	[5],[6]			true
Basis spread on variable rate	[5],[6],[14]			11.01%
Interest Rate	[5],[6]			11.44%
PIK Interest Rate	[5],[6]			4.90%
Acquisition date	[5],[6]			Jan. 15, 2020
Maturity date	[5],[6]			Jan. 15, 2025
Principal, Shares, Units	[5],[6]			$ 7,387,652
Amortized cost	[1],[5],[6]			7,323,725
Fair value	[5],[6],[7]			$ 6,956,951
Percentage of net assets	[5],[6]			3.70%
Investment, Identifier [Axis]: Consolidated Machine and Tool Holdings, LLC First Lien Senior Secured Term Loan SOFR Spread 12.01% Interest rate 17.34% PIK Due 1/15/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20],[22],[24]	star:ConsolidatedMachineAndToolHoldingsLLCFirstLienSeniorSecuredTermLoanSOFRSpread1201InterestRate1734PIKDue1152025Member
Investment, Significant Unobservable Input [true false]	[20],[22],[24]	true
Basis spread on variable rate	[14],[20],[22],[24]	12.01%
PIK Interest Rate	[20],[22],[24]	17.34%
Acquisition date	[20],[22],[24]	Jan. 19, 2023
Maturity date	[20],[22],[24]	Jan. 15, 2025
Principal, Shares, Units	[20],[22],[24]	$ 1,294,336
Amortized cost	[1],[20],[22],[24]	1,283,429
Fair value	[7],[20],[22],[24]	$ 1,169,044
Percentage of net assets	[20],[22],[24]	0.70%
Investment, Identifier [Axis]: Construction & Engineering First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ConstructionEngineeringFirstLienSeniorSecuredTermLoanMember		star:ConstructionEngineeringFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 53,035,735
Amortized cost	[1]			52,047,015
Fair value	[7]			$ 50,278,748
Percentage of net assets				26.40%
Investment, Identifier [Axis]: Construction & Engineering First Lien Senior Secured Term Loan Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 2,499,935
Amortized cost	[1]	2,468,253
Fair value	[7]	$ 1,752,954
Percentage of net assets		0.90%
Investment, Identifier [Axis]: Construction & Engineering First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 49,368,350
Amortized cost	[1]	48,514,742
Fair value	[7]	$ 49,141,928
Percentage of net assets		24.10%
Investment, Identifier [Axis]: Construction & Engineering Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ConstructionEngineeringPreferredEquitySecuritiesMember		star:ConstructionEngineeringPreferredEquitySecuritiesMember
Principal, Shares, Units				$ 189,043
Amortized cost	[1]			5,153,950
Fair value	[7]			$ 3,322,215
Percentage of net assets				1.80%
Investment, Identifier [Axis]: Construction & Engineering Preferred Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 3,375
Amortized cost	[1]	3,316,130
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Construction & Engineering Preferred Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 186,933
Amortized cost	[1]	3,076,584
Fair value	[7]	$ 4,356,143
Percentage of net assets		2.10%
Investment, Identifier [Axis]: Construction & Engineering Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ConstructionEngineeringWarrantsAndOtherEquitySecuritiesMember		star:ConstructionEngineeringWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 1,117
Amortized cost	[1]			939,949
Fair value	[7]			$ 1,939,562
Percentage of net assets				1.00%
Investment, Identifier [Axis]: Construction & Engineering Warrants and Other Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 295
Amortized cost	[1]	0
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Construction & Engineering Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 899
Amortized cost	[1]	939,949
Fair value	[7]	$ 2,557,689
Percentage of net assets		1.30%
Investment, Identifier [Axis]: Consumer Finance First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]			star:ConsumerFinanceFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 3,427,073
Amortized cost	[1]			3,407,754
Fair value	[7]			$ 3,427,073
Percentage of net assets				1.80%
Investment, Identifier [Axis]: Consumer Finance Senior Unsecured Notes
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ConsumerFinanceSeniorUnsecuredNotesMember
Investment, Identifier [Axis]: Consumer Finance Senior Unsecured Notes Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 3,427,073
Amortized cost	[1]	3,427,073
Fair value	[7]	$ 3,427,073
Percentage of net assets		1.70%
Investment, Identifier [Axis]: Consumer Finance Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ConsumerFinanceWarrantsAndOtherEquitySecuritiesMember		star:ConsumerFinanceWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 164,332
Amortized cost	[1]			0
Fair value	[7]			$ 190,807
Percentage of net assets				0.10%
Investment, Identifier [Axis]: Consumer Finance Warrants and Other Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 0
Amortized cost	[1]	0
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Controlled Investments
Investments [Abstract]
Investment, Issuer Affiliation [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	Non-controlled/Non-affiliated Investments [Member]
Amortized cost	[1]	$ 45,151,759
Fair value	[7]	$ 40,614,040
Percentage of net assets		18.20%
Investment, Identifier [Axis]: Coop Home Goods LLC (dba Coop Home Goods) First Lien Senior Secured Term Loan SOFR Spread 8.26% Interest Rate 13.59% Due 6/18/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13]	star:CoopHomeGoodsLLCDbaCoopHomeGoodsFirstLienSeniorSecuredTermLoanSOFRSpread826InterestRate1359Due6182026Member	[20]	star:CoopHomeGoodsLLCDbaCoopHomeGoodsFirstLienSeniorSecuredTermLoanSOFRSpread826InterestRate1359Due6182026Member	[5]
Investment, Significant Unobservable Input [true false]	[3]	true	[20]	true	[5]
Basis spread on variable rate	[3],[14]	8.26%	[20]	8.26%	[5]
Interest Rate	[3]	13.59%	[20]	13.59%	[5]
Acquisition date	[3]	Jun. 18, 2021	[20]	Jun. 18, 2021	[5]
Maturity date	[3]	Jun. 18, 2026	[20]	Jun. 18, 2026	[5]
Principal, Shares, Units	[3]	$ 4,373,103	[20]	$ 4,387,729	[5]
Amortized cost	[1],[3]	4,331,187	[20]	4,335,754	[5]
Fair value	[3],[7]	$ 4,373,103	[20]	$ 4,365,790	[5]
Percentage of net assets	[3]	2.10%	[20]	2.30%	[5]
Investment, Identifier [Axis]: CorTech, LLC Second Lien Senior Secured Loan LIBOR Spread 6.35% Interest Rate 11.75% Due 9/30/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:CorTechLLCSecondLienSeniorSecuredLoanLIBORSpread625InterestRate1144Due9302025Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			6.35%
Interest Rate	[5]			11.68%
Acquisition date	[5]			Mar. 13, 2020
Maturity date	[5]			Sep. 30, 2025
Principal, Shares, Units	[5]			$ 6,359,542
Amortized cost	[1],[5]			6,305,249
Fair value	[5],[7]			$ 6,059,372
Percentage of net assets	[5]			3.20%
Investment, Identifier [Axis]: CorTech, LLC Second Lien Senior Secured Loan SOFR Spread 6.35% Interest Rate 11.67% Due 9/30/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:CorTechLLCSecondLienSeniorSecuredLoanSOFRSpread635InterestRate1167Due9302025Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	6.35%
Interest Rate	[20]	11.67%
Acquisition date	[20]	Mar. 13, 2020
Maturity date	[20]	Sep. 30, 2025
Principal, Shares, Units	[20]	$ 6,257,746
Amortized cost	[1],[20]	6,205,139
Fair value	[7],[20]	$ 6,073,644
Percentage of net assets	[20]	3.00%
Investment, Identifier [Axis]: DCCM, LLC First Lien Senior Secured Term Loan SOFR Spread 6.76% Plus 1.00% Interest Rate 12.09% Cash Plus 1.00% PIK Due 12/30/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:DCCMLLCFirstLienSeniorSecuredTermLoanSOFRSpread676Plus100InterestRate1209CashPlus100PIKDue12302026Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	6.76%
Paid in Kind Basis Spread Variable Rate	[14],[20]	1.00%
Interest Rate	[20]	12.09%
PIK Interest Rate	[20]	1.00%
Acquisition date	[20]	Aug. 06, 2021
Maturity date	[20]	Dec. 30, 2026
Principal, Shares, Units	[20]	$ 18,270,019
Amortized cost	[1],[20]	18,062,815
Fair value	[7],[20]	$ 18,635,420
Percentage of net assets	[20]	9.20%
Investment, Identifier [Axis]: DCCM, LLC Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:DCCMLLCWarrantsAndOtherEquitySecuritiesMember		star:DCCMLLCWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true		true
Basis spread on variable rate	[14],[18]	0.00%		0.00%
Interest Rate	[18]	0.00%		0.00%
Acquisition date	[18]	Aug. 06, 2021		Aug. 06, 2021
Principal, Shares, Units	[18]	$ 897		$ 897
Amortized cost	[1],[18]	939,949		939,949
Fair value	[7],[18]	$ 1,762,475		$ 1,045,109
Percentage of net assets	[18]	0.90%		0.50%
Investment, Identifier [Axis]: DCCMLLC First Lien Senior Secured Term Loan LIBOR Spread 7.16% Interest Rate 12.49% Due 12/30/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:DCCMLLCFirstLienSeniorSecuredTermLoanLIBORSpread716InterestRate1249Due12302026Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			7.16%
Interest Rate	[5]			12.49%
Acquisition date	[5]			Aug. 06, 2021
Maturity date	[5]			Dec. 30, 2026
Principal, Shares, Units	[5]			$ 18,409,233
Amortized cost	[1],[5]			18,151,330
Fair value	[5],[7]			$ 18,201,208
Percentage of net assets	[5]			9.60%
Investment, Identifier [Axis]: Distributors First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:DistributorsFirstLienSeniorSecuredTermLoanMember		star:DistributorsFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 14,812,030
Amortized cost	[1]			14,299,832
Fair value	[7]			$ 13,807,774
Percentage of net assets				7.20%
Investment, Identifier [Axis]: Distributors First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 14,736,842
Amortized cost	[1]	14,273,291
Fair value	[7]	$ 13,669,895
Percentage of net assets		6.70%
Investment, Identifier [Axis]: Diversified Consumer Services First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]			star:DiversifiedConsumerServicesFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 15,000,652
Amortized cost	[1]			14,905,882
Fair value	[7]			$ 15,000,652
Percentage of net assets				7.90%
Investment, Identifier [Axis]: Diversified Consumer Services Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:DiversifiedConsumerServicesWarrantsAndOtherEquitySecuritiesMember		star:DiversifiedConsumerServicesWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 12,693
Amortized cost	[1]			0
Fair value	[7]			$ 181,524
Percentage of net assets				0.10%
Investment, Identifier [Axis]: Diversified Consumer Services Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 12,693
Amortized cost	[1]	0
Fair value	[7]	$ 128,580
Percentage of net assets		0.10%
Investment, Identifier [Axis]: Diversified Financials Fund Investments
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:DiversifiedFinancialsFundInvestmentsMember		star:DiversifiedFinancialsFundInvestmentsMember
Principal, Shares, Units				$ 2,898,305
Amortized cost	[1]			2,898,305
Fair value	[7]			$ 2,809,327
Percentage of net assets				1.50%
Investment, Identifier [Axis]: Diversified Financials Fund Investments Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 2,855,855
Amortized cost	[1]	2,898,305
Fair value	[7]	$ 2,818,111
Percentage of net assets		1.40%
Investment, Identifier [Axis]: Diversified Telecommunication Services First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:DiversifiedTelecommunicationServicesFirstLienSeniorSecuredTermLoanMember		star:DiversifiedTelecommunicationServicesFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 20,951,616
Amortized cost	[1]			20,222,254
Fair value	[7]			$ 21,123,326
Percentage of net assets				11.10%
Investment, Identifier [Axis]: Diversified Telecommunication Services First Lien Senior Secured Term Loan Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 2,355,077
Amortized cost	[1]	2,055,992
Fair value	[7]	$ 2,355,077
Percentage of net assets		1.20%
Investment, Identifier [Axis]: Diversified Telecommunication Services First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 19,111,573
Amortized cost	[1]	18,714,578
Fair value	[7]	$ 18,888,914
Percentage of net assets		9.30%
Investment, Identifier [Axis]: Diversified Telecommunication Services Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:DiversifiedTelecommunicationServicesPreferredEquitySecuritiesMember		star:DiversifiedTelecommunicationServicesPreferredEquitySecuritiesMember
Principal, Shares, Units				$ 4,708,702
Amortized cost	[1]			6,718,484
Fair value	[7]			$ 8,557,688
Percentage of net assets				4.50%
Investment, Identifier [Axis]: Diversified Telecommunication Services Preferred Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 597,707
Amortized cost	[1]	3,591,494
Fair value	[7]	$ 5,593,903
Percentage of net assets		2.70%
Investment, Identifier [Axis]: Diversified Telecommunication Services Preferred Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 4,110,995
Amortized cost	[1]	3,126,990
Fair value	[7]	$ 3,043,156
Percentage of net assets		1.40%
Investment, Identifier [Axis]: Diversified Telecommunication Services Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:DiversifiedTelecommunicationServicesWarrantsAndOtherEquitySecuritiesMember		star:DiversifiedTelecommunicationServicesWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 344,996
Amortized cost	[1]			443,392
Fair value	[7]			$ 1,153,829
Percentage of net assets				0.60%
Investment, Identifier [Axis]: Diversified Telecommunication Services Warrants and Other Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 267,801
Amortized cost	[1]	443,392
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Diversified Telecommunication Services Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 77,195
Amortized cost	[1]	0
Fair value	[7]	$ 665,464
Percentage of net assets		0.30%
Investment, Identifier [Axis]: Douglas Products and Packaging Company, LLC First Lien Senior Secured Term Loan SOFR Spread 6.90% Interest Rate 12.24% Due 9/20/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[15]	star:DouglasProductsAndPackagingCompanyLLCFirstLienSeniorSecuredTermLoanSOFRSpread690InterestRate1224Due9202028Member
Basis spread on variable rate	[3],[14],[15]	6.90%
Interest Rate	[3],[15]	12.24%
Acquisition date	[3],[15]	Sep. 20, 2023
Maturity date	[3],[15]	Sep. 20, 2028
Principal, Shares, Units	[3],[15]	$ 14,887,500
Amortized cost	[1],[3],[15]	14,581,949
Fair value	[3],[7],[15]	$ 14,859,213
Percentage of net assets	[3],[15]	7.30%
Investment, Identifier [Axis]: Douglas Products and Packaging Company, LLC First Lien Senior Secured Term Loan SOFR Spread 6.90% PIK Interest rate 12.25%Due 9/20/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[4],[8],[9],[10],[11],[12],[13]			star:DouglasProductsAndPackagingCompanyLLCFirstLienSeniorSecuredTermLoanSOFRSpread690PIKInterestRate1225Due9202028Member
Investment, Significant Unobservable Input [true false]	[3],[4]			true
Basis spread on variable rate	[3],[4],[14]			6.90%
Interest Rate	[3],[4]			12.25%
Acquisition date	[3],[4]			Sep. 20, 2023
Maturity date	[3],[4]			Sep. 20, 2028
Principal, Shares, Units	[3],[4]			$ 14,962,500
Amortized cost	[1],[3],[4]			14,538,407
Fair value	[3],[4],[7]			$ 14,538,406
Percentage of net assets	[3],[4]			7.50%
Investment, Identifier [Axis]: Electrical Equipment First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ElectricalEquipmentFirstLienSeniorSecuredTermLoanMember		star:ElectricalEquipmentFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 8,521,445
Amortized cost	[1]			8,357,466
Fair value	[7]			$ 6,935,604
Percentage of net assets				3.60%
Investment, Identifier [Axis]: Electrical Equipment First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 8,840,576
Amortized cost	[1]	9,198,337
Fair value	[7]	$ 6,532,447
Percentage of net assets		3.30%
Investment, Identifier [Axis]: Electrical Equipment Senior Unsecured Notes
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ElectricalEquipmentSeniorUnsecuredNotesMember		star:ElectricalEquipmentSeniorUnsecuredNotesMember
Investment, Significant Unobservable Input [true false]		true		true
Principal, Shares, Units		$ 2,067,881		$ 2,067,881
Amortized cost	[1]	2,033,098		2,033,098
Fair value	[7]	$ 0		$ 1,384,446
Percentage of net assets		0.00%		0.70%
Investment, Identifier [Axis]: Electrical Equipment Senior Unsecured Notes Non-Affiliate Investments
Investments [Abstract]
Investment, Significant Unobservable Input [true false]		true
Principal, Shares, Units		$ 6,257,746
Amortized cost	[1]	6,205,139
Fair value	[7]	$ 6,073,644
Percentage of net assets		3.00%
Investment, Identifier [Axis]: Electrical Equipment Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ElectricalEquipmentWarrantsAndOtherEquitySecuritiesMember		star:ElectricalEquipmentWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 190,019
Amortized cost	[1]			0
Fair value	[7]			$ 0
Percentage of net assets				0.00%
Investment, Identifier [Axis]: Electrical Equipment Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 190,019
Amortized cost	[1]	0
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Entertainment First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:EntertainmentFirstLienSeniorSecuredTermLoanMember		star:EntertainmentFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 17,485,872
Amortized cost	[1]			17,257,718
Fair value	[7]			$ 16,861,825
Percentage of net assets				8.80%
Investment, Identifier [Axis]: Entertainment First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 17,423,700
Amortized cost	[1]	17,212,100
Fair value	[7]	$ 12,899,353
Percentage of net assets		6.30%
Investment, Identifier [Axis]: Entertainment Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:EntertainmentPreferredEquitySecuritiesMember		star:EntertainmentPreferredEquitySecuritiesMember
Principal, Shares, Units				$ 971
Amortized cost	[1]			955,843
Fair value	[7]			$ 1,088,481
Percentage of net assets				0.60%
Investment, Identifier [Axis]: Entertainment Preferred Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 1,183
Amortized cost	[1]	1,134,428
Fair value	[7]	$ 1,332,308
Percentage of net assets		0.70%
Investment, Identifier [Axis]: Entertainment Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:EntertainmentWarrantsAndOtherEquitySecuritiesMember		star:EntertainmentWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 2
Amortized cost	[1]			43,478
Fair value	[7]			$ 528,569
Percentage of net assets				0.30%
Investment, Identifier [Axis]: Entertainment Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 2
Amortized cost	[1]	43,478
Fair value	[7]	$ 464,125
Percentage of net assets		0.20%
Investment, Identifier [Axis]: Food Products First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:FoodProductsFirstLienSeniorSecuredTermLoanMember		star:FoodProductsFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 7,146,952
Amortized cost	[1]			7,017,250
Fair value	[7]			$ 7,146,952
Percentage of net assets				3.80%
Investment, Identifier [Axis]: Food Products First Lien Senior Secured Term Loan Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 7,082,792
Amortized cost	[1]	6,967,229
Fair value	[7]	$ 7,131,663
Percentage of net assets		3.50%
Investment, Identifier [Axis]: Food Products Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:FoodProductsPreferredEquitySecuritiesMember		star:FoodProductsPreferredEquitySecuritiesMember
Principal, Shares, Units				$ 2,829,787
Amortized cost	[1]			2,829,787
Fair value	[7]			$ 4,482,681
Percentage of net assets				2.40%
Investment, Identifier [Axis]: Food Products Preferred Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 2,829,787
Amortized cost	[1]	2,829,787
Fair value	[7]	$ 4,309,021
Percentage of net assets		2.00%
Investment, Identifier [Axis]: Food Products Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:FoodProductsWarrantsAndOtherEquitySecuritiesMember		star:FoodProductsWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 127,215
Amortized cost	[1]			0
Fair value	[7]			$ 53,021
Percentage of net assets				0.00%
Investment, Identifier [Axis]: Food Products Warrants and Other Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 127,215
Amortized cost	[1]	0
Fair value	[7]	$ 45,872
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Fremont-Wright, LLC First Lien Senior Secured Term Loan SOFR Spread 9.10% Interest Rate 14.43% Due 12/2/2024
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[4],[8],[9],[10],[11],[12],[13]			star:FremontWrightLLCFirstLienSeniorSecuredTermLoanLIBORSpread900InterestRate1386Due1222024Member
Investment, Significant Unobservable Input [true false]	[4]			true
Basis spread on variable rate	[4],[14]			9.10%
Interest Rate	[4]			14.45%
Acquisition date	[4]			Dec. 02, 2020
Maturity date	[4]			Dec. 02, 2024
Principal, Shares, Units	[4]			$ 4,258,824
Amortized cost	[1],[4]			4,233,922
Fair value	[4],[7]			$ 4,246,047
Percentage of net assets	[4]			2.20%
Investment, Identifier [Axis]: Fremont-Wright, LLC First Lien Senior Secured Term Loan SOFR Spread 9.10% Interest Rate 14.44% Due 12/2/2024
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[15]	star:FremontWrightLLCFirstLienSeniorSecuredTermLoanSOFRSpread910InterestRate1444Due1222024Member
Investment, Significant Unobservable Input [true false]	[15]	true
Basis spread on variable rate	[14],[15]	9.10%
Interest Rate	[15]	14.44%
Acquisition date	[15]	Dec. 02, 2020
Maturity date	[15]	Dec. 02, 2024
Principal, Shares, Units	[15]	$ 4,213,409
Amortized cost	[1],[15]	4,200,120
Fair value	[7],[15]	$ 4,213,409
Percentage of net assets	[15]	2.10%
Investment, Identifier [Axis]: Fremont-Wright, LLC Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:FremontWrightLLCWarrantsAndOtherEquitySecuritiesMember		star:FremontWrightLLCWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]		true		true
Basis spread on variable rate	[14]	0.00%		0.00%
Interest Rate		0.00%		0.00%
Acquisition date		Dec. 02, 2020		Dec. 02, 2020
Principal, Shares, Units		$ 2		$ 2
Amortized cost	[1]	0		0
Fair value	[7]	$ 795,214		$ 894,453
Percentage of net assets		0.40%		0.50%
Investment, Identifier [Axis]: Fund Investments
Investments [Abstract]
Investment, Type [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	Fund Investments [Member]		Fund Investments [Member]
Amortized cost	[1]			$ 2,898,305
Fair value	[7]			$ 2,809,327
Percentage of net assets				1.50%
Investment, Identifier [Axis]: Fund Investments Non-Affiliate Investments
Investments [Abstract]
Amortized cost	[1]	$ 2,898,305
Fair value	[7]	$ 2,818,111
Percentage of net assets		1.40%
Investment, Identifier [Axis]: Gateway Dealer Network, LLC First Lien Senior Secured Term Loan SOFR Spread 7.85% Interest Rate 13.20% Due 6/30/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[4],[8],[9],[10],[11],[12],[13]			star:GatewayDealerNetworkLLCFirstLienSeniorSecuredTermLoanSOFRSpread785InterestRate1320Due6302027Member
Investment, Significant Unobservable Input [true false]	[3],[4]			true
Basis spread on variable rate	[3],[4],[14]			7.85%
Interest Rate	[3],[4]			13.20%
Acquisition date	[3],[4]			Jun. 30, 2022
Maturity date	[3],[4]			Jun. 30, 2027
Principal, Shares, Units	[3],[4]			$ 8,594,363
Amortized cost	[1],[3],[4]			8,494,408
Fair value	[3],[4],[7]			$ 8,594,363
Percentage of net assets	[3],[4]			4.50%
Investment, Identifier [Axis]: Gridsource Holdings, LLC Preferred Equity Securities Interest Rate 8.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:GridsourceHoldingsLLCPreferredEquitySecuritiesInterestRate800PIKMember		star:GridsourceHoldingsLLCPreferredEquitySecuritiesInterestRate800PIKMember
Investment, Significant Unobservable Input [true false]	[18]	true		true
Basis spread on variable rate	[14],[18]	0.00%		0.00%
PIK Interest Rate	[18]	8.00%		8.00%
Acquisition date	[18]	Mar. 09, 2023		Mar. 09, 2023
Principal, Shares, Units	[18]	$ 3,959,977		$ 3,959,977
Amortized cost	[1],[18]	799,597		799,597
Fair value	[7],[18]	$ 852,835		$ 1,138,860
Percentage of net assets	[18]	0.40%		0.60%
Investment, Identifier [Axis]: Gridsource Incorporated, LLC First Lien Senior Secured Term Loan SOFR Spread 8.50% Interest Rate 13.80% Due 12/16/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:GridsourceIncorporatedLLCFirstLienSeniorSecuredTermLoanSOFRSpread850InterestRate1341Due12162027Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			8.50%
Interest Rate	[5]			13.83%
Acquisition date	[5]			Dec. 16, 2022
Maturity date	[5]			Dec. 16, 2027
Principal, Shares, Units	[5]			$ 14,074,595
Amortized cost	[1],[5]			13,688,488
Fair value	[5],[7]			$ 14,246,305
Percentage of net assets	[5]			7.50%
Investment, Identifier [Axis]: Gridsource Incorporated, LLC First Lien Senior Secured Term Loan SOFR Spread 8.50% Interest Rate 13.82% Due 12/16/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:GridsourceIncorporatedLLCFirstLienSeniorSecuredTermLoanSOFRSpread850InterestRate1382Due12162027Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	8.50%
Interest Rate	[20]	13.82%
Acquisition date	[20]	Dec. 16, 2022
Maturity date	[20]	Dec. 16, 2027
Principal, Shares, Units	[20]	$ 14,003,717
Amortized cost	[1],[20]	13,644,333
Fair value	[7],[20]	$ 13,781,058
Percentage of net assets	[20]	6.80%
Investment, Identifier [Axis]: HH Masterwork Intermediate, Inc. Senior Unsecured Notes Interest Rate 17.00% PIK Due 5/17/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HHMasterworkIntermediateIncSeniorUnsecuredNotesInterestRate1700PIKDue5172028Member	[22]	star:HHMasterworkIntermediateIncSeniorUnsecuredNotesInterestRate1700PIKDue5172028Member
Investment, Significant Unobservable Input [true false]		true	[22]	true
Basis spread on variable rate	[14]	0.00%	[22]	0.00%
PIK Interest Rate		17.00%	[22]	17.00%
Acquisition date		Nov. 17, 2022	[22]	Nov. 17, 2022
Maturity date		May 17, 2028	[22]	May 17, 2028
Principal, Shares, Units		$ 2,067,881	[22]	$ 2,067,881
Amortized cost	[1]	2,033,098	[22]	2,033,098
Fair value	[7]	$ 0	[22]	$ 1,384,446
Percentage of net assets		0.00%	[22]	0.70%
Investment, Identifier [Axis]: HH Masterwork Intermediate, Inc. Warrants and Other Equity Securities Due 11/17/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HHMasterworkIntermediateIncWarrantsAndOtherEquitySecuritiesDue11172027Member		star:HHMasterworkIntermediateIncWarrantsAndOtherEquitySecuritiesDue11172027Member
Investment, Significant Unobservable Input [true false]		true		true
Basis spread on variable rate	[14]	0.00%		0.00%
Interest Rate		0.00%		0.00%
Acquisition date		Nov. 17, 2022		Nov. 17, 2022
Maturity date		Nov. 17, 2027		Nov. 17, 2027
Principal, Shares, Units		$ 190,019		$ 190,019
Amortized cost	[1]	0		0
Fair value	[7]	$ 0		$ 0
Percentage of net assets		0.00%		0.00%
Investment, Identifier [Axis]: Healthcare Providers & Services First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HealthcareProvidersServicesFirstLienSeniorSecuredTermLoanMember		star:HealthcareProvidersServicesFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 42,503,656
Amortized cost	[1]			41,247,262
Fair value	[7]			$ 39,727,544
Percentage of net assets				20.80%
Investment, Identifier [Axis]: Healthcare Providers & Services First Lien Senior Secured Term Loan Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 797,086
Amortized cost	[1]	779,672
Fair value	[7]	$ 765,202
Percentage of net assets		0.40%
Investment, Identifier [Axis]: Healthcare Providers & Services First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 42,178,830
Amortized cost	[1]	41,035,677
Fair value	[7]	$ 39,033,608
Percentage of net assets		19.10%
Investment, Identifier [Axis]: Healthcare Providers & Services Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HealthcareProvidersServicesPreferredEquitySecuritiesMember		star:HealthcareProvidersServicesPreferredEquitySecuritiesMember
Principal, Shares, Units				$ 629,728
Amortized cost	[1]			2,618,164
Fair value	[7]			$ 3,168,575
Percentage of net assets				1.70%
Investment, Identifier [Axis]: Healthcare Providers & Services Preferred Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 627,085
Amortized cost	[1]	620,326
Fair value	[7]	$ 347,331
Percentage of net assets		0.20%
Investment, Identifier [Axis]: Healthcare Providers & Services Preferred Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 1,953
Amortized cost	[1]	2,029,287
Fair value	[7]	$ 2,160,052
Percentage of net assets		1.10%
Investment, Identifier [Axis]: Healthcare Providers & Services Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HealthcareProvidersServicesWarrantsAndOtherEquitySecuritiesMember		star:HealthcareProvidersServicesWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 1,185
Amortized cost	[1]			419,877
Fair value	[7]			$ 428,568
Percentage of net assets				0.20%
Investment, Identifier [Axis]: Healthcare Providers & Services Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 1,185
Amortized cost	[1]	419,877
Fair value	[7]	$ 139,999
Percentage of net assets		0.10%
Investment, Identifier [Axis]: Hometown Holdings JV, LLC (dba BWG Strategy) Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17],[18]	star:HometownHoldingsJVLLCDbaBWGStrategyPreferredEquitySecuritiesMember		star:HometownHoldingsJVLLCDbaBWGStrategyPreferredEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[17],[18]	true		true
Basis spread on variable rate	[14],[17],[18]	0.00%		0.00%
Interest Rate	[17],[18]	0.00%
PIK Interest Rate	[17],[18]			8.00%
Acquisition date	[17],[18]	Dec. 24, 2020		Dec. 24, 2020
Principal, Shares, Units	[17],[18]	$ 666,667		$ 666,667
Amortized cost	[1],[17],[18]	659,761		676,799
Fair value	[7],[17],[18]	$ 611,867		$ 820,533
Percentage of net assets	[17],[18]	0.30%		0.40%
Investment, Identifier [Axis]: Hotels Restaurants Leisure First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 4,953,782
Amortized cost	[1]	4,831,364
Fair value	[7]	$ 4,877,989
Percentage of net assets		2.40%
Investment, Identifier [Axis]: Hotels, Restaurants & Leisure First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HotelsRestaurantsLeisureFirstLienSeniorSecuredTermLoanMember		star:HotelsRestaurantsLeisureFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 4,978,992
Amortized cost	[1]			4,839,259
Fair value	[7]			$ 4,876,922
Percentage of net assets				2.60%
Investment, Identifier [Axis]: Hotels, Restaurants & Leisure Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HotelsRestaurantsLeisureWarrantsAndOtherEquitySecuritiesMember		star:HotelsRestaurantsLeisureWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 21,210
Amortized cost	[1]			71,599
Fair value	[7]			$ 32,606
Percentage of net assets				0.00%
Investment, Identifier [Axis]: Hotels, Restaurants & Leisure Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 21,210
Amortized cost	[1]	71,599
Fair value	[7]	$ 48,405
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Household Durables First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HouseholdDurablesFirstLienSeniorSecuredTermLoanMember		star:HouseholdDurablesFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 4,683,036
Amortized cost	[1]			4,618,637
Fair value	[7]			$ 2,341,518
Percentage of net assets				1.20%
Investment, Identifier [Axis]: Household Durables First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 4,683,036
Amortized cost	[1]	4,618,637
Fair value	[7]	$ 2,085,356
Percentage of net assets		1.00%
Investment, Identifier [Axis]: Household Durables Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HouseholdDurablesWarrantsAndOtherEquitySecuritiesMember		star:HouseholdDurablesWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 1,846,180
Amortized cost	[1]			0
Fair value	[7]			$ 0
Percentage of net assets				0.00%
Investment, Identifier [Axis]: Household Durables Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 1,917,813
Amortized cost	[1]	0
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Household Products First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HouseholdProductsFirstLienSeniorSecuredTermLoanMember		star:HouseholdProductsFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 4,387,729
Amortized cost	[1]			4,335,754
Fair value	[7]			$ 4,365,790
Percentage of net assets				2.30%
Investment, Identifier [Axis]: Household Products First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 4,373,103
Amortized cost	[1]	4,331,187
Fair value	[7]	$ 4,373,103
Percentage of net assets		2.10%
Investment, Identifier [Axis]: Household Products Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:HouseholdProductsWarrantsAndOtherEquitySecuritiesMember		star:HouseholdProductsWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 535,714
Amortized cost	[1]			535,714
Fair value	[7]			$ 99,286
Percentage of net assets				0.10%
Investment, Identifier [Axis]: Household Products Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 535,714
Amortized cost	[1]	535,714
Fair value	[7]	$ 304,821
Percentage of net assets		0.10%
Investment, Identifier [Axis]: IPA Intermediate Co., LLC (dba Integrated Pain Associates) First Lien Senior Secured Term Loan SOFR Spread 8.01% Interest Rate 13.33% Due 1/9/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:IPAIntermediateCoLLCDbaIntegratedPainAssociatesFirstLienSeniorSecuredTermLoanSOFRSpread801InterestRate1333Due192028Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	8.01%
Interest Rate	[20]	13.33%
Acquisition date	[20]	Jan. 09, 2023
Maturity date	[20]	Jan. 09, 2028
Principal, Shares, Units	[20]	$ 11,152,699
Amortized cost	[1],[20]	10,891,316
Fair value	[7],[20]	$ 10,867,190
Percentage of net assets	[20]	5.30%
Investment, Identifier [Axis]: IPA Intermediate Co., LLC (dba Integrated Pain Associates)First Lien Senior Secured Term Loan SOFR Spread 8.01% Interest Rate 13.34% Due 1/9/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:IPAIntermediateCoLLCDbaIntegratedPainAssociatesFirstLienSeniorSecuredTermLoanSOFRSpread801InterestRate1334Due192028Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			8.01%
Interest Rate	[5]			13.34%
Acquisition date	[5]			Jan. 09, 2023
Maturity date	[5]			Jan. 09, 2028
Principal, Shares, Units	[5]			$ 11,209,312
Amortized cost	[1],[5]			10,930,921
Fair value	[5],[7]			$ 10,930,921
Percentage of net assets	[5]			5.70%
Investment, Identifier [Axis]: IPA Investors, LP (dba Integrated Pain Associates) Preferred Equity Securities Interest Rate 8.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:IPAInvestorsLPDbaIntegratedPainAssociatesPreferredEquitySecuritiesInterestRate800PIKMember		star:IPAInvestorsLPDbaIntegratedPainAssociatesPreferredEquitySecuritiesInterestRate800PIKMember
Investment, Significant Unobservable Input [true false]	[18]	true		true
Basis spread on variable rate	[14],[18]	0.00%		0.00%
PIK Interest Rate	[18]	8.00%		8.00%
Acquisition date	[18]	Jan. 09, 2023		Jan. 09, 2023
Principal, Shares, Units	[18]	$ 1,953		$ 2,643
Amortized cost	[1],[18]	2,029,287		1,997,838
Fair value	[7],[18]	$ 2,160,052		$ 2,854,468
Percentage of net assets	[18]	1.10%		1.50%
Investment, Identifier [Axis]: IT Services First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ITServicesFirstLienSeniorSecuredTermLoanMember		star:ITServicesFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 18,687,526
Amortized cost	[1]			18,368,354
Fair value	[7]			$ 18,406,891
Percentage of net assets				9.60%
Investment, Identifier [Axis]: IT Services First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 12,944,370
Amortized cost	[1]	12,803,522
Fair value	[7]	$ 12,959,903
Percentage of net assets		6.40%
Investment, Identifier [Axis]: Investments First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Type [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	Investments First Lien Senior Secured Term Loan [Member]		Investments First Lien Senior Secured Term Loan [Member]
Amortized cost	[1]			$ 332,292,188
Fair value	[7]			$ 319,229,009
Percentage of net assets				167.20%
Investment, Identifier [Axis]: Investments First Lien Senior Secured Term Loan Controlled Investments
Investments [Abstract]
Amortized cost	[1]	$ 21,759,983
Fair value	[7]	$ 20,374,373
Percentage of net assets		10.00%
Investment, Identifier [Axis]: Investments First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Amortized cost	[1]	$ 261,098,951
Fair value	[7]	$ 246,613,332
Percentage of net assets		121.20%
Investment, Identifier [Axis]: Investments Second Lien Senior Secured Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:InvestmentsSecondLienSeniorSecuredLoanMember
Investment, Type [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]			star:InvestmentsSecondLienSeniorSecuredLoanMember
Amortized cost	[1]			$ 6,305,249
Fair value	[7]			$ 6,059,372
Percentage of net assets				3.20%
Investment, Identifier [Axis]: Investments Second Lien Senior Secured Loan Non-Affiliate Investments
Investments [Abstract]
Amortized cost	[1]	$ 6,205,139
Fair value	[7]	$ 6,073,644
Percentage of net assets		3.00%
Investment, Identifier [Axis]: Japonesque, LLC First Lien Senior Secured Term Loan SOFR Spread 8.18% Interest Rate 13.50% Due 11/23/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[20]	star:JaponesqueLLCFirstLienSeniorSecuredTermLoanSOFRSpread818InterestRate1350Due11232026Member
Investment, Significant Unobservable Input [true false]	[3],[20]	true
Basis spread on variable rate	[3],[14],[20]	8.18%
Interest Rate	[3],[20]	13.50%
Acquisition date	[3],[20]	Nov. 23, 2021
Maturity date	[3],[20]	Nov. 23, 2026
Principal, Shares, Units	[3],[20]	$ 4,464,656
Amortized cost	[1],[3],[20]	4,414,667
Fair value	[3],[7],[20]	$ 4,509,303
Percentage of net assets	[3],[20]	2.20%
Investment, Identifier [Axis]: Japonesque, LLC First Lien Senior Secured Term Loan SOFR Spread 8.18% Plus 1.50 % PIK Interest Rate 13.51 Plus 1.50% Due 11/23/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[5],[8],[9],[10],[11],[12],[13]			star:JaponesqueLLCFirstLienSeniorSecuredTermLoanLIBORSpreadS818Cash150PIKInterestRate1351CashPlus150PIKDue11232026Member
Investment, Significant Unobservable Input [true false]	[3],[5]			true
Basis spread on variable rate	[3],[5],[14]			8.18%
Paid in Kind Basis Spread Variable Rate	[3],[5],[14]			1.50%
Interest Rate	[3],[5]			13.51%
PIK Interest Rate	[3],[5]			1.50%
Acquisition date	[3],[5]			Nov. 23, 2021
Maturity date	[3],[5]			Nov. 23, 2026
Principal, Shares, Units	[3],[5]			$ 4,525,012
Amortized cost	[1],[3],[5]			4,451,581
Fair value	[3],[5],[7]			$ 4,457,979
Percentage of net assets	[3],[5]			2.30%
Investment, Identifier [Axis]: Klein Hersh, LLC First Lien Senior Secured Term Loan SOFR Spread 7.76% Interest Rate 4.63% Cash Plus 8.47% PIK Due 4/27/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[5],[8],[9],[10],[11],[12],[13]			star:ConsolidatedMachineAndToolHoldingsLLCFirstLienSeniorSecuredTermLoanSOFRSpread1201InterestRate1634PIKDue1152025Member, star:KleinHershLLCFirstLienSeniorSecuredTermLoanSOFRSpread776InterestRate463CashPlus847PIKDue4272027Member, star:SwyftAcquireCoLLCDbaSwyftFilingsFirstLienSeniorSecuredTermLoanSOFRSpread550InterestRate1085Due12202027Member
Investment, Significant Unobservable Input [true false]	[3],[5]			true
Basis spread on variable rate	[3],[5],[14]			7.76%
Interest Rate	[3],[5]			4.63%
PIK Interest Rate	[3],[5]			8.47%
Acquisition date	[3],[5]			Apr. 27, 2022
Maturity date	[3],[5]			Apr. 27, 2027
Principal, Shares, Units	[3],[5]			$ 16,438,829
Amortized cost	[1],[3],[5]			15,808,872
Fair value	[3],[5],[7]			$ 14,188,353
Percentage of net assets	[3],[5]			7.40%
Investment, Identifier [Axis]: Klein Hersh, LLC First Lien Senior Secured Term Loan SOFR Spread 7.76% Plus 3.00% PIK Interest Rate 4.63% Plus 11.46% PIK Due 4/27/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[20]	star:KleinHershLLCFirstLienSeniorSecuredTermLoanSOFRSpread776Plus300PIKInterestRate463Plus1146PIKDue4272027Member
Investment, Significant Unobservable Input [true false]	[3],[20]	true
Basis spread on variable rate	[3],[14],[20]	7.76%
Paid in Kind Basis Spread Variable Rate	[3],[14],[20]	3.00%
Interest Rate	[3],[20]	4.63%
PIK Interest Rate	[3],[20]	11.46%
Acquisition date	[3],[20]	Apr. 27, 2022
Maturity date	[3],[20]	Apr. 27, 2027
Principal, Shares, Units	[3],[20]	$ 17,468,922
Amortized cost	[1],[3],[20]	16,862,088
Fair value	[3],[7],[20]	$ 15,077,427
Percentage of net assets	[3],[20]	7.40%
Investment, Identifier [Axis]: Klein Hersh, LLC Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:KleinHershLLCWarrantsAndOtherEquitySecuritiesMember		star:KleinHershLLCWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]		true		true
Basis spread on variable rate	[14]	0.00%		0.00%
Interest Rate		0.00%		0.00%
Acquisition date		Apr. 27, 2022		Apr. 27, 2022
Principal, Shares, Units		$ 1,003		$ 1,003
Amortized cost	[1]	0		0
Fair value	[7]	$ 0		$ 0
Percentage of net assets		0.00%		0.00%
Investment, Identifier [Axis]: LRI Holdco, LLC (dba Linden Labs) Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:LRIHoldcoLLCDbaLindenLabsWarrantsAndOtherEquitySecuritiesMember		star:LRIHoldcoLLCDbaLindenLabsWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true		true
Basis spread on variable rate	[14],[18]	0.00%		0.00%
Interest Rate	[18]	0.00%		0.00%
Acquisition date	[18]	Dec. 31, 2020		Dec. 31, 2020
Principal, Shares, Units	[18]	$ 2		$ 2
Amortized cost	[1],[18]	43,478		43,478
Fair value	[7],[18]	$ 464,125		$ 528,569
Percentage of net assets	[18]	0.20%		0.30%
Investment, Identifier [Axis]: Lasalle Staffing, LLC First Lien Senior Secured Term Loan SOFR Spread 6.86% Interest Rate 12.20% Due 2/15/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[15],[16]	star:LasalleStaffingLLCFirstLienSeniorSecuredTermLoanSOFRSpread686InterestRate1220Due2152027Member
Investment, Significant Unobservable Input [true false]	[3],[15],[16]	true
Basis spread on variable rate	[3],[14],[15],[16]	6.86%
Interest Rate	[3],[15],[16]	12.20%
Acquisition date	[3],[15],[16]	Feb. 15, 2022
Maturity date	[3],[15],[16]	Feb. 15, 2027
Principal, Shares, Units	[3],[15],[16]	$ 7,300,785
Amortized cost	[1],[3],[15],[16]	7,183,969
Fair value	[3],[7],[15],[16]	$ 7,337,289
Percentage of net assets	[3],[15],[16]	3.50%
Investment, Identifier [Axis]: Lasalle Staffing, LLC First Lien Senior Secured Term Loan SOFR Spread 6.86% Interest Rate 12.21% Due 2/15/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[4],[8],[9],[10],[11],[12],[13]			star:LasalleStaffingLLCFirstLienSeniorSecuredTermLoanSOFRSpread686InterestRate1221Due2152022Member
Investment, Significant Unobservable Input [true false]	[3],[4]			true
Basis spread on variable rate	[3],[4],[14]			6.86%
Interest Rate	[3],[4]			12.21%
Acquisition date	[3],[4]			Feb. 15, 2022
Maturity date	[3],[4]			Feb. 15, 2027
Principal, Shares, Units	[3],[4]			$ 7,461,888
Amortized cost	[1],[3],[4]			7,332,377
Fair value	[3],[4],[7]			$ 7,499,198
Percentage of net assets	[3],[4]			3.90%
Investment, Identifier [Axis]: Leisure Products First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:LeisureProductsFirstLienSeniorSecuredTermLoanMember		star:LeisureProductsFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 4,226,371
Amortized cost	[1]			4,163,215
Fair value	[7]			$ 3,852,760
Percentage of net assets				2.00%
Investment, Identifier [Axis]: Leisure Products First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 4,289,761
Amortized cost	[1]	4,229,298
Fair value	[7]	$ 1,875,913
Percentage of net assets		0.90%
Investment, Identifier [Axis]: Leisure Products Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:LeisureProductsPreferredEquitySecuritiesMember		star:LeisureProductsPreferredEquitySecuritiesMember
Principal, Shares, Units				$ 13
Amortized cost	[1]			564,645
Fair value	[7]			$ 0
Percentage of net assets				0.00%
Investment, Identifier [Axis]: Leisure Products Preferred Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 13
Amortized cost	[1]	564,645
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Linden Research, Inc. (dba Linden Labs) First Lien Senior Secured Term Loan SOFR Spread 7.26% Plus 3.25% PIK Interest Rate 12.56% Plus 3.25 PIK Due 12/31/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[5],[8],[9],[10],[11],[12],[13]			star:LindenResearchIncDbaLindenLabsFirstLienSeniorSecuredTermLoanLIBORSpread850Plus161PIKInterestRate1519Plus161PIKDue12312025Member
Investment, Significant Unobservable Input [true false]	[3],[5]			true
Basis spread on variable rate	[3],[5],[14]			7.26%
Paid in Kind Basis Spread Variable Rate	[3],[5],[14]			3.25%
Interest Rate	[3],[5]			12.59%
PIK Interest Rate	[3],[5]			3.25%
Acquisition date	[3],[5]			Dec. 31, 2020
Maturity date	[3],[5]			Dec. 31, 2025
Principal, Shares, Units	[3],[5]			$ 4,738,655
Amortized cost	[1],[3],[5]			4,634,407
Fair value	[3],[5],[7]			$ 4,738,655
Percentage of net assets	[3],[5]			2.50%
Investment, Identifier [Axis]: Linden Research, Inc. (dba Linden Labs) First Lien Senior Secured Term Loan SOFR Spread 7.26% Plus 3.25% PIK Interest Rate 12.59% Plus 3.25 PIK Due 12/31/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[20]	star:LindenResearchIncDbaLindenLabsFirstLienSeniorSecuredTermLoanSOFRSpread726Plus325PIKInterestRate1259Plus325PIKDue12312025Member
Investment, Significant Unobservable Input [true false]	[3],[20]	true
Basis spread on variable rate	[3],[14],[20]	7.26%
Paid in Kind Basis Spread Variable Rate	[3],[14],[20]	3.25%
Interest Rate	[3],[20]	12.59%
PIK Interest Rate	[3],[20]	3.25%
Acquisition date	[3],[20]	Dec. 31, 2020
Maturity date	[3],[20]	Dec. 31, 2025
Principal, Shares, Units	[3],[20]	$ 4,741,779
Amortized cost	[1],[3],[20]	4,637,209
Fair value	[3],[7],[20]	$ 4,741,779
Percentage of net assets	[3],[20]	2.30%
Investment, Identifier [Axis]: Lockstep Holdings, LLC First Lien Senior Secured Term Loan LIBOR Spread 6.75% Interest Rate 12.08% Due 7/3/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[5],[8],[9],[10],[11],[12],[13]			star:LockstepHoldingsLLCFirstLienSeniorSecuredTermLoanLIBORSpread675InterestRate1208Due732028Member
Investment, Significant Unobservable Input [true false]	[3],[5]			true
Basis spread on variable rate	[3],[5],[14]			6.75%
Interest Rate	[3],[5]			12.08%
Acquisition date	[3],[5]			Jul. 03, 2023
Maturity date	[3],[5]			Jul. 03, 2028
Principal, Shares, Units	[3],[5]			$ 5,357,714
Amortized cost	[1],[3],[5]			5,228,599
Fair value	[3],[5],[7]			$ 5,210,377
Percentage of net assets	[3],[5]			2.70%
Investment, Identifier [Axis]: MPUSA, LLC (dba Mission) First Lien Senior Secured Term Loan SOFR Spread 11.26% Interest Rate 13.59% Plus 3.00% PIK Due 12/9/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:MPUSALLCDbaMissionFirstLienSeniorSecuredTermLoanLIBORSpread900InterestRate1419Due1292026Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			11.26%
Interest Rate	[5]			13.59%
PIK Interest Rate	[5]			3.00%
Acquisition date	[5]			Dec. 09, 2021
Maturity date	[5]			Dec. 09, 2026
Principal, Shares, Units	[5]			$ 4,226,371
Amortized cost	[1],[5]			4,163,215
Fair value	[5],[7]			$ 3,852,760
Percentage of net assets	[5]			2.00%
Investment, Identifier [Axis]: MPUSA, LLC (dba Mission) First Lien Senior Secured Term Loan SOFR Spread 8.26% Plus 3.00% PIK Interest Rate 13.59% Plus 3.00% PIK Due 12/9/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:MPUSALLCDbaMissionFirstLienSeniorSecuredTermLoanSOFRSpread826Plus300PIKInterestRate1359Plus300PIKDue1292026Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	8.26%
Paid in Kind Basis Spread Variable Rate	[14],[20]	3.00%
Interest Rate	[20]	13.59%
PIK Interest Rate	[20]	3.00%
Acquisition date	[20]	Dec. 09, 2021
Maturity date	[20]	Dec. 09, 2026
Principal, Shares, Units	[20]	$ 4,289,761
Amortized cost	[1],[20]	4,229,298
Fair value	[7],[20]	$ 1,875,913
Percentage of net assets	[20]	0.90%
Investment, Identifier [Axis]: MPUSA, LLC (dba Mission) Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]			star:MPUSALLCDbaMissionPreferredEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]			true
Basis spread on variable rate	[14],[18]			0.00%
Interest Rate	[18]			0.00%
Acquisition date	[18]			Dec. 09, 2021
Principal, Shares, Units	[18]			$ 13
Amortized cost	[1],[18]			564,645
Fair value	[7],[18]			$ 0
Percentage of net assets	[18]			0.00%
Investment, Identifier [Axis]: Machinery First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:MachineryFirstLienSeniorSecuredTermLoanMember		star:MachineryFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 4,909,896
Amortized cost	[1]			4,832,798
Fair value	[7]			$ 4,196,979
Percentage of net assets				2.20%
Investment, Identifier [Axis]: Machinery First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 4,757,718
Amortized cost	[1]	4,693,144
Fair value	[7]	$ 4,104,484
Percentage of net assets		2.00%
Investment, Identifier [Axis]: Machinery Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:MachineryWarrantsAndOtherEquitySecuritiesMember		star:MachineryWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 1,602
Amortized cost	[1]			0
Fair value	[7]			$ 490,323
Percentage of net assets				0.30%
Investment, Identifier [Axis]: Machinery Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 1,602
Amortized cost	[1]	0
Fair value	[7]	$ 206,129
Percentage of net assets		0.10%
Investment, Identifier [Axis]: Madryn Select Opportunities, LP Fund Investments
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:MadrynSelectOpportunitiesLPFundInvestmentsMember	[23]	star:MadrynSelectOpportunitiesLPFundInvestmentsMember	[25]
Investment, Significant Unobservable Input [true false]		true	[23]	true	[25]
Basis spread on variable rate	[14]	0.00%	[23]	0.00%	[25]
Interest Rate	[23]	0.00%		0.00%	[25]
Acquisition date		Jan. 04, 2022	[23]	Jan. 04, 2022	[25]
Principal, Shares, Units		$ 2,855,855	[23]	$ 2,898,305	[25]
Amortized cost	[1]	2,898,305	[23]	2,898,305	[25]
Fair value	[7]	$ 2,818,111	[23]	$ 2,809,327	[25]
Percentage of net assets		1.40%	[23]	1.50%	[25]
Investment, Identifier [Axis]: Masterwork Electronics, Inc. First Lien Senior Secured Term Loan SOFR Spread 7.65% Interest Rate 12.97% PIK Due 11/17/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[2],[8],[9],[10],[11],[12],[13],[20],[22],[24]	star:MasterworkElectronicsIncFirstLienSeniorSecuredTermLoanSOFRSpread765InterestRate1297PIKDue11172027Member
Investment, Significant Unobservable Input [true false]	[2],[20],[22],[24]	true
Basis spread on variable rate	[2],[14],[20],[22],[24]	7.65%
PIK Interest Rate	[2],[20],[22],[24]	12.97%
Acquisition date	[2],[20],[22],[24]	Nov. 17, 2022
Maturity date	[2],[20],[22],[24]	Nov. 17, 2027
Principal, Shares, Units	[2],[20],[22],[24]	$ 521,739
Amortized cost	[1],[2],[20],[22],[24]	521,739
Fair value	[2],[7],[20],[22],[24]	$ 521,739
Percentage of net assets	[2],[20],[22],[24]	0.30%
Investment, Identifier [Axis]: Masterwork Electronics, Inc. First Lien Senior Secured Term Loan SOFR Spread 9.50% Interest Rate 14.83% PIK Due 11/17/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:MasterworkElectronicsIncFirstLienSeniorSecuredTermLoanSOFRSpread950InterestRate1483PIKDue11172027Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			9.50%
PIK Interest Rate	[5]			14.83%
Acquisition date	[5]			Nov. 17, 2022
Maturity date	[5]			Nov. 17, 2027
Principal, Shares, Units	[5]			$ 8,521,445
Amortized cost	[1],[5]			8,357,466
Fair value	[5],[7]			$ 6,935,604
Percentage of net assets	[5]			3.60%
Investment, Identifier [Axis]: Masterwork Electronics, Inc. First Lien Senior Secured Term Loan SOFR Spread 9.65% Interest Rate 14.95% PIK Due 11/17/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20],[22],[24]	star:MasterworkElectronicsIncFirstLienSeniorSecuredTermLoanSOFRSpread965InterestRate1495PIKDue11172027Member
Investment, Significant Unobservable Input [true false]	[20],[22],[24]	true
Basis spread on variable rate	[14],[20],[22],[24]	7.65%
Interest Rate	[20],[22],[24]	12.97%
Acquisition date	[20],[22],[24]	Nov. 17, 2022
Maturity date	[20],[22],[24]	Nov. 17, 2027
Principal, Shares, Units	[20],[22],[24]	$ 8,840,576
Amortized cost	[1],[20],[22],[24]	8,676,598
Fair value	[7],[20],[22],[24]	$ 6,010,708
Percentage of net assets	[20],[22],[24]	3.00%
Investment, Identifier [Axis]: MechanAir Holdings, LLC Preferred Equity Securities Interest Rate 13.50% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17],[18]	star:MechanAirHoldingsLLCPreferredEquitySecuritiesInterestRate1350PIKMember		star:MechanAirHoldingsLLCPreferredEquitySecuritiesInterestRate1350PIKMember
Investment, Significant Unobservable Input [true false]	[17],[18]	true		true
Basis spread on variable rate	[14],[17],[18]	0.00%		0.00%
PIK Interest Rate	[17],[18]	13.50%		13.50%
Acquisition date	[17],[18]	Sep. 02, 2021		Sep. 02, 2021
Principal, Shares, Units	[17],[18]	$ 1,219		$ 1,219
Amortized cost	[1],[17],[18]	1,219,441		1,219,441
Fair value	[7],[17],[18]	$ 172,143		$ 0
Percentage of net assets	[17],[18]	0.10%		0.00%
Investment, Identifier [Axis]: MechanAir, LLC First Lien Senior Secured Term Loan Interest Rate 18.00% PIK Due 9/2/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17]	star:MechanAirLLCFirstLienSeniorSecuredTermLoanInterestRate1800PIKDue922026Member
Investment, Significant Unobservable Input [true false]	[17]	true
Basis spread on variable rate	[14],[17]	0.00%
PIK Interest Rate	[17]	18.00%
Acquisition date	[17]	Dec. 15, 2023
Maturity date	[17]	Sep. 02, 2026
Principal, Shares, Units	[17]	$ 465,534
Amortized cost	[1],[17]	465,534
Fair value	[7],[17]	$ 465,534
Percentage of net assets	[17]	0.20%
Investment, Identifier [Axis]: MechanAir, LLC First Lien Senior Secured Term Loan SOFR Spread 10.80% Interest Rate 11.29% Plus 4.84% PIK Due 9/2/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:MechanAirLLCFirstLienSeniorSecuredTermLoanSOFRSpread1080InterestRate1129Plus484PIKDue922026Member	[20]	star:MechanAirLLCFirstLienSeniorSecuredTermLoanLIBORSpread1050InterestRate1569Due922026Member	[5]
Investment, Significant Unobservable Input [true false]		true	[20]	true	[5]
Basis spread on variable rate	[14]	10.80%	[20]	10.80%	[5]
Interest Rate		11.29%	[20]	11.29%	[5]
PIK Interest Rate		4.84%	[20]	4.84%	[5]
Acquisition date		Sep. 02, 2021	[20]	Sep. 02, 2021	[5]
Maturity date		Sep. 02, 2026	[20]	Sep. 02, 2026	[5]
Principal, Shares, Units		$ 11,073,529	[20]	$ 11,006,971	[5]
Amortized cost	[1]	10,939,739	[20]	10,846,083	[5]
Fair value	[7]	$ 10,886,386	[20]	$ 10,616,224	[5]
Percentage of net assets		5.30%	[20]	5.60%	[5]
Investment, Identifier [Axis]: MechanAir, LLC First Lien Senior Secured Term Loan SOFR Spread 12.30% 17.63% PIK Due 9/2/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:MechanAirLLCFirstLienSeniorSecuredTermLoanSOFRSpread12301763PIKDue922026Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			12.30%
PIK Interest Rate	[5]			17.63%
Acquisition date	[5]			Dec. 15, 2023
Maturity date	[5]			Sep. 02, 2026
Principal, Shares, Units	[5]			$ 710,054
Amortized cost	[1],[5]			710,054
Fair value	[5],[7]			$ 0
Percentage of net assets	[5]			0.00%
Investment, Identifier [Axis]: MechanAir, LLC First Lien Senior Secured Term Loan SOFR Spread 12.30% 18.00% PIK Due 9/2/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17]			star:MechanAirLLCFirstLienSeniorSecuredTermLoanInterestRate1800PIKDue922026Member
Investment, Significant Unobservable Input [true false]	[17]			true
Basis spread on variable rate	[14],[17]			0.00%
PIK Interest Rate	[17]			18.00%
Acquisition date	[17]			Dec. 15, 2023
Maturity date	[17]			Sep. 02, 2026
Principal, Shares, Units	[17]			$ 426,099
Amortized cost	[1],[17]			426,099
Fair value	[7],[17]			$ 0
Percentage of net assets	[17]			0.00%
Investment, Identifier [Axis]: MechanAir, LLC First Lien Senior Secured Term Loan SOFR Spread 12.30% Interest Rate 17.62% PIK Due 9/2/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:MechanAirLLCFirstLienSeniorSecuredTermLoanSOFRSpread1230InterestRate1762PIKDue922026Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	12.30%
PIK Interest Rate	[20]	17.62%
Acquisition date	[20]	Dec. 15, 2023
Maturity date	[20]	Sep. 02, 2026
Principal, Shares, Units	[20]	$ 774,430
Amortized cost	[1],[20]	774,430
Fair value	[7],[20]	$ 722,466
Percentage of net assets	[20]	0.40%
Investment, Identifier [Axis]: Media First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:MediaFirstLienSeniorSecuredTermLoanMember		star:MediaFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 19,022,302
Amortized cost	[1]			18,733,268
Fair value	[7]			$ 18,700,248
Percentage of net assets				9.90%
Investment, Identifier [Axis]: Media First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 17,335,196
Amortized cost	[1]	17,078,838
Fair value	[7]	$ 17,306,532
Percentage of net assets		8.50%
Investment, Identifier [Axis]: Media Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:MediaPreferredEquitySecuritiesMember		star:MediaPreferredEquitySecuritiesMember
Principal, Shares, Units				$ 3,515,344
Amortized cost	[1]			4,847,503
Fair value	[7]			$ 7,170,030
Percentage of net assets				3.90%
Investment, Identifier [Axis]: Media Preferred Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 3,515,344
Amortized cost	[1]	4,847,503
Fair value	[7]	$ 8,113,225
Percentage of net assets		4.00%
Investment, Identifier [Axis]: Microf, LLC First Lien Senior Secured Term Loan SOFR Spread 10.85% Interest Rate 16.15% Due 6/30/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:MicrofLLCFirstLienSeniorSecuredTermLoanLIBORSpread1075InterestRate1594Due6302025Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			10.85%
Interest Rate	[5]			16.18%
Acquisition date	[5]			Mar. 29, 2019
Maturity date	[5]			Jun. 30, 2025
Principal, Shares, Units	[5]			$ 3,427,073
Amortized cost	[1],[5]			3,407,754
Fair value	[5],[7]			$ 3,427,073
Percentage of net assets	[5]			1.80%
Investment, Identifier [Axis]: Microf, LLC Senior Unsecured Notes SOFR Spread 10.85% Interest Rate 16.17% Due 6/30/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[16]	star:MicrofLLCSeniorUnsecuredNotesSOFRSpread1085InterestRate1617Due6302025Member
Investment, Significant Unobservable Input [true false]	[16]	true
Basis spread on variable rate	[14],[16]	10.85%
Interest Rate	[16]	16.17%
Acquisition date	[16]	Mar. 29, 2019
Maturity date	[16]	Jun. 30, 2025
Principal, Shares, Units	[16]	$ 3,427,073
Amortized cost	[1],[16]	3,427,073
Fair value	[7],[16]	$ 3,427,073
Percentage of net assets	[16]	1.70%
Investment, Identifier [Axis]: Microf, LLC Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]			star:MicrofLLCWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]				true
Basis spread on variable rate	[14]			0.00%
Interest Rate				0.00%
Acquisition date				May 05, 2020
Principal, Shares, Units				$ 164,332
Amortized cost	[1]			0
Fair value	[7]			$ 190,807
Percentage of net assets				0.10%
Investment, Identifier [Axis]: Microf, LLC Warrants and Other Equity Securities Interest Rate 15.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[16]	star:MicrofLLCWarrantsAndOtherEquitySecuritiesInterestRate1500PIKMember
Investment, Significant Unobservable Input [true false]	[16]	true
Basis spread on variable rate	[14],[16]	15.00%
Interest Rate	[16]	0.00%
Acquisition date	[16]	May 05, 2020
Principal, Shares, Units	[16]	$ 0
Amortized cost	[1],[16]	0
Fair value	[7],[16]	$ 0
Percentage of net assets	[16]	0.00%
Investment, Identifier [Axis]: NSC Holdings, LLC Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:NSCHoldingsLLCWarrantsAndOtherEquitySecuritiesMember		star:NSCHoldingsLLCWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true		true
Basis spread on variable rate	[14],[18]	0.00%		0.00%
Interest Rate	[18]	0.00%		0.00%
Acquisition date	[18]	Apr. 26, 2019		Apr. 26, 2019
Principal, Shares, Units	[18]	$ 111		$ 111
Amortized cost	[1],[18]	271,262		271,262
Fair value	[7],[18]	$ 394,383		$ 296,715
Percentage of net assets	[18]	0.20%		0.20%
Investment, Identifier [Axis]: NSC Technologies, LLC First Lien Senior Secured Term Loan LIBOR Spread 7.76% Interest Rate 13.09% Due 10/26/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:NSCTechnologiesLLCFirstLienSeniorSecuredTermLoanLIBORSpread850InterestRate1369Due4262024Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			7.76%
Interest Rate	[5]			13.09%
Acquisition date	[5]			Apr. 26, 2019
Maturity date	[5]			Oct. 26, 2026
Principal, Shares, Units	[5]			$ 4,148,472
Amortized cost	[1],[5]			4,139,598
Fair value	[5],[7]			$ 4,148,472
Percentage of net assets	[5]			2.20%
Investment, Identifier [Axis]: NSC Technologies, LLC First Lien Senior Secured Term Loan SOFR Spread 8.26% Interest Rate 13.59% Due 10/26/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[20]	star:NSCTechnologiesLLCFirstLienSeniorSecuredTermLoanSOFRSpread826InterestRate1359Due10262026Member
Investment, Significant Unobservable Input [true false]	[3],[20]	true
Basis spread on variable rate	[3],[14],[20]	8.26%
Interest Rate	[3],[20]	13.59%
Acquisition date	[3],[20]	Apr. 26, 2019
Maturity date	[3],[20]	Oct. 26, 2026
Principal, Shares, Units	[3],[20]	$ 4,148,472
Amortized cost	[1],[3],[20]	4,117,999
Fair value	[3],[7],[20]	$ 4,145,568
Percentage of net assets	[3],[20]	2.00%
Investment, Identifier [Axis]: NW Entertainment, LLC First Lien Senior Secured Term Loan SOFR Spread 7.76% Interest Rate 13.06% Due 11/4/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:NWEntertainmentLLCFirstLienSeniorSecuredTermLoanSOFRSpread776InterestRate1267Due1142027Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			7.76%
Interest Rate	[5]			13.09%
Acquisition date	[5]			Nov. 04, 2022
Maturity date	[5]			Nov. 04, 2027
Principal, Shares, Units	[5]			$ 6,366,361
Amortized cost	[1],[5]			6,254,950
Fair value	[5],[7]			$ 6,366,361
Percentage of net assets	[5]			3.30%
Investment, Identifier [Axis]: NW Entertainment, LLC First Lien Senior Secured Term Loan SOFR Spread 7.76% Interest Rate 13.09% Due 11/4/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:NWEntertainmentLLCFirstLienSeniorSecuredTermLoanSOFRSpread776InterestRate1309Due1142027Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	7.76%
Interest Rate	[20]	13.09%
Acquisition date	[20]	Nov. 04, 2022
Maturity date	[20]	Nov. 04, 2027
Principal, Shares, Units	[20]	$ 6,301,065
Amortized cost	[1],[20]	6,194,035
Fair value	[7],[20]	$ 6,427,086
Percentage of net assets	[20]	3.20%
Investment, Identifier [Axis]: NW Entertainment, LLC Preferred Equity Securities Interest Rate 10.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:NWEntertainmentLLCPreferredEquitySecuritiesInterestRate1000PIKMember		star:NWEntertainmentLLCPreferredEquitySecuritiesInterestRate1000PIKMember
Investment, Significant Unobservable Input [true false]	[18]	true		true
Basis spread on variable rate	[14],[18]	0.00%		0.00%
PIK Interest Rate	[18]	10.00%		10.00%
Acquisition date	[18]	Nov. 04, 2022		Nov. 04, 2022
Principal, Shares, Units	[18]	$ 1,183		$ 971
Amortized cost	[1],[18]	1,134,428		955,843
Fair value	[7],[18]	$ 1,332,308		$ 1,088,481
Percentage of net assets	[18]	0.70%		0.60%
Investment, Identifier [Axis]: Non-Affiliate Investments
Investments [Abstract]
Investment, Issuer Affiliation [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	Non-controlled/Non-affiliated Investments [Member]
Amortized cost	[1]	$ 292,344,467
Fair value	[7]	$ 285,155,114
Percentage of net assets		140.10%
Investment, Identifier [Axis]: Nurses 24/7 Holdings, LLC Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:Nurses247HoldingsLLCWarrantsAndOtherEquitySecuritiesMember		star:Nurses247HoldingsLLCWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true		true
Basis spread on variable rate	[14],[18]	0.00%		0.00%
Interest Rate	[18]	0.00%		0.00%
Acquisition date	[18]	May 26, 2023		May 26, 2023
Principal, Shares, Units	[18]	$ 182		$ 182
Amortized cost	[1],[18]	419,877		419,877
Fair value	[7],[18]	$ 139,999		$ 428,568
Percentage of net assets	[18]	0.10%		0.20%
Investment, Identifier [Axis]: Nurses Staffing, LLC (dba Nurses 24/7) First Lien Senior Secured Term Loan SOFR Spread 7.26% Cash Plus 2.00% PIK Interest Rate 12.59% Cash Plus 2.00% PIK Due 8/26/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:NursesStaffingLLCDbaNurses247FirstLienSeniorSecuredTermLoanSOFRSpread726CashPlus200PIKInterestRate1259CashPlus200PIKDue8262028Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			7.26%
Paid in Kind Basis Spread Variable Rate	[5],[14]			2.00%
Interest Rate	[5]			12.59%
PIK Interest Rate	[5]			2.00%
Acquisition date	[5]			May 26, 2023
Maturity date	[5]			Aug. 26, 2028
Principal, Shares, Units	[5]			$ 7,396,865
Amortized cost	[1],[5]			7,251,132
Fair value	[5],[7]			$ 7,258,544
Percentage of net assets	[5]			3.80%
Investment, Identifier [Axis]: Nurses Staffing, LLC (dba Nurses 24/7) First Lien Senior Secured Term Loan SOFR Spread 7.26% Plus 2.00 PIK Interest Rate 12.58 Plus 2.00% PIK Due 8/26/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:NursesStaffingLLCDbaNurses247FirstLienSeniorSecuredTermLoanSOFRSpread726Plus200PIKInterestRate1258Plus200PIKDue8262028Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	7.26%
Paid in Kind Basis Spread Variable Rate	[14],[20]	2.00%
Interest Rate	[20]	12.58%
PIK Interest Rate	[20]	2.00%
Acquisition date	[20]	May 26, 2023
Maturity date	[20]	Aug. 26, 2028
Principal, Shares, Units	[20]	$ 6,829,008
Amortized cost	[1],[20]	6,711,387
Fair value	[7],[20]	$ 6,377,611
Percentage of net assets	[20]	3.10%
Investment, Identifier [Axis]: PPC Event Services, Inc. First Lien Senior Secured Term Loan SOFR Spread 6.76% Interest Rate 12.09% Due 9/22/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13],[25]			star:PPCEventServicesIncFirstLienSeniorSecuredTermLoanSOFRSpread651InterestRate1142Due9222027Member
Investment, Significant Unobservable Input [true false]	[5],[25]			true
Basis spread on variable rate	[5],[14],[25]			6.76%
Interest Rate	[5],[25]			12.09%
Acquisition date	[5],[25]			Sep. 22, 2022
Maturity date	[5],[25]			Sep. 22, 2027
Principal, Shares, Units	[5],[25]			$ 7,273,693
Amortized cost	[1],[5],[25]			7,199,328
Fair value	[5],[7],[25]			$ 7,273,693
Percentage of net assets	[5],[25]			3.70%
Investment, Identifier [Axis]: PQT Ayaquhs, LLC (dba WWC Global) First Lien Senior Secured Term Loan SOFR Spread 7.76% Interest Rate 13.09% Due 8/1/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:PQTAyaquhsLLCDbaWWCGlobalFirstLienSeniorSecuredTermLoanSOFRSpread776InterestRate1309Due812027Member	[20]	star:PQTAyaquhsLLCDbaWWCGlobalFirstLienSeniorSecuredTermLoanSOFRSpread776InterestRate1309Due812027Member	[5]
Investment, Significant Unobservable Input [true false]		true	[20]	true	[5]
Basis spread on variable rate	[14]	7.76%	[20]	7.76%	[5]
Interest Rate		13.09%	[20]	13.09%	[5]
Acquisition date		Aug. 01, 2022	[20]	Aug. 01, 2022	[5]
Maturity date		Aug. 01, 2027	[20]	Aug. 01, 2027	[5]
Principal, Shares, Units		$ 7,508,065	[20]	$ 7,606,855	[5]
Amortized cost	[1]	7,396,663	[20]	7,481,063	[5]
Fair value	[7]	$ 7,583,145	[20]	$ 7,606,855	[5]
Percentage of net assets		3.70%	[20]	4.00%	[5]
Investment, Identifier [Axis]: PQT Ayaquhs, LLC (dba WWC Global) Preferred Equity Securities Interest Rate 10.50% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17],[18]	star:PQTAyaquhsLLCDbaWWCGlobalPreferredEquitySecuritiesInterestRate1050PIKMember		star:PQTAyaquhsLLCDbaWWCGlobalPreferredEquitySecuritiesInterestRate1050PIKMember
Investment, Significant Unobservable Input [true false]	[17],[18]	true		true
Basis spread on variable rate	[14],[17],[18]	0.00%		0.00%
Interest Rate	[17],[18]			10.50%
PIK Interest Rate	[17],[18]	10.50%
Acquisition date	[17],[18]	Aug. 01, 2022		Aug. 01, 2022
Principal, Shares, Units	[17],[18]	$ 5,774		$ 5,774
Amortized cost	[1],[17],[18]	1,064,516		1,064,516
Fair value	[7],[17],[18]	$ 3,794,194		$ 3,821,290
Percentage of net assets	[17],[18]	1.90%		2.00%
Investment, Identifier [Axis]: PQT Ayaquhs, LLC (dba WWC Global) Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:PQTAyaquhsLLCDbaWWCGlobalWarrantsAndOtherEquitySecuritiesMember		star:PQTAyaquhsLLCDbaWWCGlobalWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]		true		true
Basis spread on variable rate	[14]	0.00%		0.00%
Interest Rate		0.00%		0.00%
Acquisition date		Aug. 01, 2022		Aug. 01, 2022
Principal, Shares, Units		$ 645		$ 645
Amortized cost	[1]	0		0
Fair value	[7]	$ 299,677		$ 311,613
Percentage of net assets		0.10%		0.20%
Investment, Identifier [Axis]: PadSquad Holdings, LLC Preferred Equity Securities Interest Rate 6.00% Plus 6.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17],[18]	star:PadSquadHoldingsLLCPreferredEquitySecuritiesInterestRate600Plus600PIKMember		star:PadSquadHoldingsLLCDbaPadsquadPreferredEquitySecuritiesInterestRate600Plus600PIKMember
Investment, Significant Unobservable Input [true false]	[17],[18]	true		true
Basis spread on variable rate	[14],[17],[18]	0.00%		0.00%
Interest Rate	[17],[18]	6.00%		6.00%
PIK Interest Rate	[17],[18]	6.00%		6.00%
Acquisition date	[17],[18]	Mar. 30, 2022		Mar. 30, 2022
Principal, Shares, Units	[17],[18]	$ 720,767		$ 720,767
Amortized cost	[1],[17],[18]	1,964,204		1,964,204
Fair value	[7],[17],[18]	$ 2,316,266		$ 2,206,343
Percentage of net assets	[17],[18]	1.10%		1.20%
Investment, Identifier [Axis]: PadSquad, LLC First Lien Senior Secured Term Loan SOFR Spread 5.50% Interest Rate 10.82% Due 3/30/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:PadSquadLLCFirstLienSeniorSecuredTermLoanSOFRSpread550InterestRate1082Due3302027Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	5.50%
Interest Rate	[20]	10.82%
Acquisition date	[20]	Mar. 30, 2022
Maturity date	[20]	Mar. 30, 2027
Principal, Shares, Units	[20]	$ 2,704,113
Amortized cost	[1],[20]	2,672,356
Fair value	[7],[20]	$ 2,675,449
Percentage of net assets	[20]	1.30%
Investment, Identifier [Axis]: PadSquad, LLC First Lien Senior Secured Term Loan SOFR Spread 9.00% Interest Rate 14.33% Due 3/30/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:PadSquadLLCFirstLienSeniorSecuredTermLoanSOFRSpread900InterestRate1433Due3302027Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			9.00%
Interest Rate	[5]			14.33%
Acquisition date	[5]			Mar. 30, 2022
Maturity date	[5]			Mar. 30, 2027
Principal, Shares, Units	[5]			$ 4,549,341
Amortized cost	[1],[5]			4,488,472
Fair value	[5],[7]			$ 4,482,011
Percentage of net assets	[5]			2.40%
Investment, Identifier [Axis]: Personal Products First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:PersonalProductsFirstLienSeniorSecuredTermLoanMember		star:PersonalProductsFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 4,525,012
Amortized cost	[1]			4,451,581
Fair value	[7]			$ 4,457,979
Percentage of net assets				2.30%
Investment, Identifier [Axis]: Personal Products First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 4,464,656
Amortized cost	[1]	4,414,667
Fair value	[7]	$ 4,509,303
Percentage of net assets		2.20%
Investment, Identifier [Axis]: Preferred Equity Securities Controlled Investments
Investments [Abstract]
Amortized cost	[1]	$ 19,521,311
Fair value	[7]	$ 16,769,722
Percentage of net assets		8.20%
Investment, Identifier [Axis]: Preferred Equity Securities Non-Affiliate Investments
Investments [Abstract]
Amortized cost	[1]	$ 16,954,339
Fair value	[7]	$ 23,710,480
Percentage of net assets		11.60%
Investment, Identifier [Axis]: Preferred equity securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[28],[29]			Preferred Equity Securities [Member]
Investment, Type [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[28],[29]	Preferred Equity Securities [Member]
Amortized cost	[1]			$ 31,684,552
Fair value	[7]			$ 41,804,395
Percentage of net assets				22.20%
Investment, Identifier [Axis]: Proactive Dealer Holdings Parent, LLC Preferred Equity Securities Interest Rate 10.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]			star:ProactiveDealerHoldingsParentLLCPreferredEquitySecuritiesInterestRate1000PIKMember
Investment, Significant Unobservable Input [true false]	[18]			true
Basis spread on variable rate	[14],[18]			0.00%
PIK Interest Rate	[18]			10.00%
Acquisition date	[18]			Dec. 27, 2021
Principal, Shares, Units	[18]			$ 1,141,205
Amortized cost	[1],[18]			1,328,162
Fair value	[7],[18]			$ 3,052,404
Percentage of net assets	[18]			1.60%
Investment, Identifier [Axis]: Proactive Dealer Holdings Parent, LLC Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:ProactiveDealerHoldingsParentLLCWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true
Basis spread on variable rate	[14],[18]	0.00%
Interest Rate	[18]	0.00%
Acquisition date	[18]	Jun. 10, 2024
Principal, Shares, Units	[18]	$ 445
Amortized cost	[1],[18]	730,271
Fair value	[7],[18]	$ 730,275
Percentage of net assets	[18]	0.40%
Investment, Identifier [Axis]: Proactive Dealer Solutions, LLC First Lien Senior Secured Term Loan LIBOR Spread 10.26% Interest Rate 15.59% Due 12/26/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:ProactiveDealerSolutionsLLCFirstLienSeniorSecuredTermLoanLIBORSpread1026InterestRate1559Due12262026Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			10.26%
Interest Rate	[5]			15.59%
Acquisition date	[5]			Dec. 27, 2021
Maturity date	[5]			Dec. 26, 2026
Principal, Shares, Units	[5]			$ 3,074,615
Amortized cost	[1],[5]			3,023,230
Fair value	[5],[7]			$ 3,074,615
Percentage of net assets	[5]			1.60%
Investment, Identifier [Axis]: Professional Services First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ProfessionalServicesFirstLienSeniorSecuredTermLoanMember		star:ProfessionalServicesFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 19,217,215
Amortized cost	[1]			18,953,038
Fair value	[7]			$ 19,254,525
Percentage of net assets				10.10%
Investment, Identifier [Axis]: Professional Services First Lien Senior Secured Term Loan Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 7,300,785
Amortized cost	[1]	7,183,969
Fair value	[7]	$ 7,337,289
Percentage of net assets		3.50%
Investment, Identifier [Axis]: Professional Services First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 11,656,537
Amortized cost	[1]	11,514,662
Fair value	[7]	$ 11,728,713
Percentage of net assets		5.70%
Investment, Identifier [Axis]: Professional Services Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ProfessionalServicesPreferredEquitySecuritiesMember		star:ProfessionalServicesPreferredEquitySecuritiesMember
Principal, Shares, Units				$ 4,672,441
Amortized cost	[1]			5,741,315
Fair value	[7]			$ 10,689,290
Percentage of net assets				5.60%
Investment, Identifier [Axis]: Professional Services Preferred Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 4,000,000
Amortized cost	[1]	4,000,000
Fair value	[7]	$ 6,519,467
Percentage of net assets		3.30%
Investment, Identifier [Axis]: Professional Services Preferred Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 672,441
Amortized cost	[1]	1,724,277
Fair value	[7]	$ 4,406,061
Percentage of net assets		2.20%
Investment, Identifier [Axis]: Professional Services Second Lien Senior Secured Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ProfessionalServicesSecondLienSeniorSecuredLoanMember		star:ProfessionalServicesSecondLienSeniorSecuredLoanMember	[5]
Investment, Significant Unobservable Input [true false]				true
Principal, Shares, Units				$ 6,359,542
Amortized cost	[1]			6,305,249
Fair value	[7]			$ 6,059,372
Percentage of net assets				3.20%
Investment, Identifier [Axis]: Professional Services Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:ProfessionalServicesWarrantsAndOtherEquitySecuritiesMember		star:ProfessionalServicesWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 756
Amortized cost	[1]			271,262
Fair value	[7]			$ 608,328
Percentage of net assets				0.40%
Investment, Identifier [Axis]: Professional Services Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 756
Amortized cost	[1]	271,262
Fair value	[7]	$ 694,060
Percentage of net assets		0.30%
Investment, Identifier [Axis]: PureCars Technologies Holdings, LLC Preferred Equity Securities Interest Rate 8.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17]	star:PureCarsTechnologiesHoldingsLLCPreferredEquitySecuritiesInterestRate800PIKMember		star:PureCarsTechnologiesHoldingsLLCPreferredEquitySecuritiesInterestRate800PIKMember	[18]
Investment, Significant Unobservable Input [true false]	[17]	true		true	[18]
Basis spread on variable rate	[14],[17]	0.00%		0.00%	[18]
PIK Interest Rate	[17]	8.00%		8.00%	[18]
Acquisition date	[17]	Jul. 25, 2022		Apr. 17, 2019	[18]
Maturity date	[17]	Jul. 26, 2024
Principal, Shares, Units	[17]	$ 78		$ 514	[18]
Amortized cost	[1],[17]	26,948		240,065	[18]
Fair value	[7],[17]	$ 30,289		$ 19,192	[18]
Percentage of net assets	[17]	0.00%		0.00%	[18]
Investment, Identifier [Axis]: PureCars Technologies, LLC First Lien Senior Secured Term Loan SOFR Spread 6.35% Plus 1.00% PIK Interest Rate 11.68% Plus 1.00% PIK Due 4/18/2024
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[5],[8],[9],[10],[11],[12],[13]			star:PureCarsTechnologiesFirstLienSeniorSecuredTermLoanLIBORSpreadSPlus635Cash100PIKInterestRate1168CashPlus100PIKDue4182024Member
Investment, Significant Unobservable Input [true false]	[3],[5]			true
Basis spread on variable rate	[3],[5],[14]			6.35%
Paid in Kind Basis Spread Variable Rate	[3],[5],[14]			1.00%
Interest Rate	[3],[5]			11.68%
PIK Interest Rate	[3],[5]			1.00%
Acquisition date	[3],[5]			Apr. 17, 2019
Maturity date	[3],[5]			Apr. 18, 2024
Principal, Shares, Units	[3],[5]			$ 1,471,687
Amortized cost	[1],[3],[5]			1,464,114
Fair value	[3],[5],[7]			$ 1,418,118
Percentage of net assets	[3],[5]			0.70%
Investment, Identifier [Axis]: PureCars Technologies, LLC Preferred Equity Securities Interest Rate 8.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17],[18]	star:PureCarsTechnologiesLLCPreferredEquitySecuritiesInterestRate800PIKMember		star:PureCarsTechnologiesLLCPreferredEquitySecuritiesInterestRate800PIKDue7262024Member
Investment, Significant Unobservable Input [true false]	[17],[18]	true		true
Basis spread on variable rate	[14],[17],[18]	0.00%		0.00%
PIK Interest Rate	[17],[18]	8.00%		8.00%
Acquisition date	[17],[18]	Apr. 17, 2019		Jul. 25, 2022
Maturity date	[17],[18]			Jul. 26, 2024
Principal, Shares, Units	[17],[18]	$ 514		$ 78
Amortized cost	[1],[17],[18]	240,065		26,948
Fair value	[7],[17],[18]	$ 57,174		$ 26,528
Percentage of net assets	[17],[18]	0.00%		0.00%
Investment, Identifier [Axis]: Rock Gate Capital, LLC (dba 160 Driving Academy) First Lien Senior Secured Term Loan SOFR Spread 7.50% Interest Rate 12.80% Due 10/16/2024
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:RockGateCapitalLLCDba160DrivingAcademyFirstLienSeniorSecuredTermLoanLIBORSpread750InterestRate1269Due10162024Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			7.50%
Interest Rate	[5]			12.83%
Acquisition date	[5]			Oct. 16, 2019
Maturity date	[5]			Oct. 16, 2024
Principal, Shares, Units	[5]			$ 15,000,652
Amortized cost	[1],[5]			14,905,882
Fair value	[5],[7]			$ 15,000,652
Percentage of net assets	[5]			7.90%
Investment, Identifier [Axis]: Rock Gate Capital, LLC (dba 160 Driving Academy) Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:RockGateCapitalLLCDba160DrivingAcademyWarrantsAndOtherEquitySecuritiesMember		star:RockGateCapitalLLCDba160DrivingAcademyWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]		true		true
Basis spread on variable rate	[14]	0.00%		0.00%
Interest Rate		0.00%		0.00%
Acquisition date		Oct. 16, 2019		Oct. 16, 2019
Principal, Shares, Units		$ 12,693		$ 12,693
Amortized cost	[1]	0		0
Fair value	[7]	$ 128,580		$ 181,524
Percentage of net assets		0.10%		0.10%
Investment, Identifier [Axis]: Senior Unsecured Notes
Investments [Abstract]
Investment, Type [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	Senior Unsecured Notes [Member]	[28]	Senior Unsecured Notes [Member]
Amortized cost	[1]			$ 2,033,098
Fair value	[7]			$ 1,384,446
Percentage of net assets				0.70%
Investment, Identifier [Axis]: Senior Unsecured Notes Controlled Investments
Investments [Abstract]
Amortized cost	[1]	$ 3,427,073
Fair value	[7]	$ 3,427,073
Percentage of net assets		1.70%
Investment, Identifier [Axis]: Senior Unsecured Notes Non-Affiliate Investments
Investments [Abstract]
Amortized cost	[1]	$ 2,033,098
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: SkyBell Technologies, Inc. First Lien Senior Secured Term Loan SOFR Spread 0.00% Interest Rate 0.00% Due 12/13/2024
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[22]	star:SkyBellTechnologiesIncFirstLienSeniorSecuredTermLoanSOFRSpread000InterestRate000Due12132024Member	[24]	star:SkyBellTechnologiesIncFirstLienSeniorSecuredTermLoanSOFRSpread000InterestRate000Due12132024Member	[6]
Investment, Significant Unobservable Input [true false]	[22]	true	[24]	true	[6]
Basis spread on variable rate	[14],[22]	0.00%	[24]	0.00%	[6]
Interest Rate	[22]	0.00%	[24]	0.00%	[6]
Acquisition date	[22]	Dec. 13, 2019	[24]	Dec. 13, 2019	[6]
Maturity date	[22]	Dec. 13, 2024	[24]	Dec. 13, 2024	[6]
Principal, Shares, Units	[22]	$ 4,683,036	[24]	$ 4,683,036	[6]
Amortized cost	[1],[22]	4,618,637	[24]	4,618,637	[6]
Fair value	[7],[22]	$ 2,085,356	[24]	$ 2,341,518	[6]
Percentage of net assets	[22]	1.00%	[24]	1.20%	[6]
Investment, Identifier [Axis]: SkyBell Technologies, Inc. Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:SkyBellTechnologiesIncWarrantsAndOtherEquitySecuritiesMember		star:SkyBellTechnologiesIncWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]		true		true
Basis spread on variable rate	[14]	0.00%		0.00%
Interest Rate		0.00%		0.00%
Acquisition date		Dec. 13, 2019		Dec. 13, 2019
Principal, Shares, Units		$ 1,917,813		$ 1,846,180
Amortized cost	[1]	0		0
Fair value	[7]	$ 0		$ 0
Percentage of net assets		0.00%		0.00%
Investment, Identifier [Axis]: Software First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]			star:SoftwareFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 4,546,302
Amortized cost	[1]			4,487,344
Fair value	[7]			$ 4,492,733
Percentage of net assets				2.30%
Investment, Identifier [Axis]: Software Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:SoftwarePreferredEquitySecuritiesMember		star:SoftwarePreferredEquitySecuritiesMember	[18]
Principal, Shares, Units				$ 1,141,797
Amortized cost	[1]			1,595,175
Fair value	[7]			$ 3,098,124
Percentage of net assets				1.60%
Investment, Identifier [Axis]: Software Preferred Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 592
Amortized cost	[1]	267,013
Fair value	[7]	$ 87,463
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Software Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:SoftwareWarrantsAndOtherEquitySecuritiesMember
Investment, Identifier [Axis]: Software Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 445
Amortized cost	[1]	730,271
Fair value	[7]	$ 730,275
Percentage of net assets		0.40%
Investment, Identifier [Axis]: Specialty Retail First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:SpecialtyRetailFirstLienSeniorSecuredTermLoanMember		star:SpecialtyRetailFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 6,452,101
Amortized cost	[1]			6,333,920
Fair value	[7]			$ 6,367,578
Percentage of net assets				3.30%
Investment, Identifier [Axis]: Specialty Retail First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 6,541,002
Amortized cost	[1]	6,438,197
Fair value	[7]	$ 5,920,915
Percentage of net assets		2.90%
Investment, Identifier [Axis]: Swyft AcquireCo LLC (dba Swyft Filings) First Lien Senior Secured Term Loan SOFR Spread 2.75% Interest Rate 8.09% Due 12/20/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[2],[8],[9],[10],[11],[12],[13],[15]	star:SwyftAcquireCoLLCDbaSwyftFilingsFirstLienSeniorSecuredTermLoanSOFRSpread275InterestRate809Due12202027Member
Investment, Significant Unobservable Input [true false]	[2],[15]	true
Basis spread on variable rate	[2],[14],[15]	2.75%
Interest Rate	[2],[15]	8.09%
Acquisition date	[2],[15]	Dec. 20, 2021
Maturity date	[2],[15]	Dec. 20, 2027
Principal, Shares, Units	[2],[15]	$ 295,839
Amortized cost	[1],[2],[15]	294,667
Fair value	[2],[7],[15]	$ 291,845
Percentage of net assets	[2],[15]	0.10%
Investment, Identifier [Axis]: Swyft AcquireCo LLC (dba Swyft Filings) First Lien Senior Secured Term Loan SOFR Spread 2.75% Interest Rate 8.10% Due 12/20/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[2],[4],[5],[8],[9],[10],[11],[12],[13]			star:SwyftAcquireCoLLCDbaSwyftFilingsFirstLienSeniorSecuredTermLoanSOFRSpread275InterestRate810Due12202027Member
Investment, Significant Unobservable Input [true false]	[2],[4]			true
Basis spread on variable rate	[2],[4],[14]			2.75%
Interest Rate	[2],[4]			8.10%
Acquisition date	[2],[4]			Dec. 20, 2021
Maturity date	[2],[4]			Dec. 20, 2027
Principal, Shares, Units	[2],[4]			$ 299,236
Amortized cost	[1],[2],[4]			295,384
Fair value	[2],[4],[7]			$ 297,441
Percentage of net assets	[2],[4]			0.20%
Investment, Identifier [Axis]: Swyft AcquireCo LLC (dba Swyft Filings) First Lien Senior Secured Term Loan SOFR Spread 5.50% Interest Rate 10.84% Due 12/20/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[15]	star:SwyftAcquireCoLLCDbaSwyftFilingsFirstLienSeniorSecuredTermLoanSOFRSpread550InterestRate1084Due12202027Member
Investment, Significant Unobservable Input [true false]	[3],[15]	true
Basis spread on variable rate	[3],[14],[15]	5.50%
Interest Rate	[3],[15]	10.84%
Acquisition date	[3],[15]	Dec. 20, 2021
Maturity date	[3],[15]	Dec. 20, 2027
Principal, Shares, Units	[3],[15]	$ 3,682,383
Amortized cost	[1],[3],[15]	3,640,468
Fair value	[3],[7],[15]	$ 3,437,136
Percentage of net assets	[3],[15]	1.70%
Investment, Identifier [Axis]: Swyft AcquireCo LLC (dba Swyft Filings) First Lien Senior Secured Term Loan SOFR Spread 5.50% Interest Rate 10.85% Due 12/20/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[4],[8],[9],[10],[11],[12],[13]			star:SwyftAcquireCoLLCDbaSwyftFilingsFirstLienSeniorSecuredTermLoanSOFRSpread550InterestRate1085Due12202027Member
Investment, Significant Unobservable Input [true false]	[3],[4]			true
Basis spread on variable rate	[3],[4],[14]			5.50%
Interest Rate	[3],[4]			10.85%
Acquisition date	[3],[4]			Dec. 20, 2021
Maturity date	[3],[4]			Dec. 20, 2027
Principal, Shares, Units	[3],[4]			$ 3,682,383
Amortized cost	[1],[3],[4]			3,633,920
Fair value	[3],[4],[7]			$ 3,483,902
Percentage of net assets	[3],[4]			1.80%
Investment, Identifier [Axis]: Swyft Filings Holdings, LLC Preferred Equity Securities Interest Rate 8.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17],[18],[30]	star:SwyftFilingsHoldingsLLCPreferredEquitySecuritiesInterestRate800PIKMember		star:SwyftFilingsHoldingsLLCPreferredEquitySecuritiesInterestRate800PIKMember
Investment, Significant Unobservable Input [true false]	[17],[18],[30]	true		true
Basis spread on variable rate	[14],[17],[18],[30]	0.00%		0.00%
PIK Interest Rate	[17],[18],[30]	8.00%		8.00%
Acquisition date	[17],[18],[30]	Dec. 20, 2021		Dec. 20, 2021
Principal, Shares, Units	[17],[18],[30]	$ 192,443		$ 192,444
Amortized cost	[1],[17],[18],[30]	183,612		183,612
Fair value	[7],[17],[18],[30]	$ 212,072		$ 227,311
Percentage of net assets	[17],[18],[30]	0.10%		0.10%
Investment, Identifier [Axis]: TCP Acquisition, LLC (dba HighStar Traffic) First Lien Senior Secured Term Loan SOFR Spread 7.50% Interest Rate 12.82% Due 7/26/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:TCPAcquisitionLLCDbaHighStarTrafficFirstLienSeniorSecuredTermLoanSOFRSpread750InterestRate1282Due7262027Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	7.50%
Interest Rate	[20]	12.82%
Acquisition date	[20]	Jul. 26, 2022
Maturity date	[20]	Jul. 26, 2027
Principal, Shares, Units	[20]	$ 10,542,871
Amortized cost	[1],[20]	10,370,807
Fair value	[7],[20]	$ 10,542,871
Percentage of net assets	[20]	5.20%
Investment, Identifier [Axis]: TCP Acquisition, LLC (dba HighStar Traffic) First Lien Senior Secured Term Loan SOFR Spread 7.50% Interest Rate 12.83% Due 7/26/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13],[25]			star:TCPAcquisitionLLCDbaHighStarTrafficFirstLienSeniorSecuredTermLoanSOFRSpread750InterestRate1283Due7262027Member
Investment, Significant Unobservable Input [true false]	[5],[25]			true
Basis spread on variable rate	[5],[14],[25]			7.50%
Interest Rate	[5],[25]			12.83%
Acquisition date	[5],[25]			Jul. 26, 2022
Maturity date	[5],[25]			Jul. 26, 2027
Principal, Shares, Units	[5],[25]			$ 10,676,188
Amortized cost	[1],[5],[25]			10,474,007
Fair value	[5],[7],[25]			$ 10,473,968
Percentage of net assets	[5],[25]			5.50%
Investment, Identifier [Axis]: TS-MP, LLC Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:TSMPLLCPreferredEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true
Basis spread on variable rate	[14],[18]	0.00%
Interest Rate	[18]	0.00%
Acquisition date	[18]	Dec. 09, 2021
Principal, Shares, Units	[18]	$ 13
Amortized cost	[1],[18]	564,645
Fair value	[7],[18]	$ 0
Percentage of net assets	[18]	0.00%
Investment, Identifier [Axis]: Texas Contract Manufacturing Group, Inc. First Lien Senior Secured Term Loan SOFR Spread 12.11% Interest Rate 17.43% Due 4/27/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:TexasContractManufacturingGroupIncFirstLienSeniorSecuredTermLoanSOFRSpread1211InterestRate1743Due4272027Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	12.11%
Interest Rate	[20]	17.43%
Acquisition date	[20]	Apr. 27, 2022
Maturity date	[20]	Apr. 27, 2027
Principal, Shares, Units	[20]	$ 4,757,718
Amortized cost	[1],[20]	4,693,144
Fair value	[7],[20]	$ 4,104,484
Percentage of net assets	[20]	2.00%
Investment, Identifier [Axis]: Texas Contract Manufacturing Group, Inc. First Lien Senior Secured Term Loan SOFR Spread 12.11% Interest Rate 17.44% Due 4/27/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13]			star:TexasContractManufacturingGroupIncFirstLienSeniorSecuredTermLoanSOFRSpread1211InterestRate1702Due4272027Member
Investment, Significant Unobservable Input [true false]	[5]			true
Basis spread on variable rate	[5],[14]			12.11%
Interest Rate	[5]			17.44%
Acquisition date	[5]			Apr. 27, 2022
Maturity date	[5]			Apr. 27, 2027
Principal, Shares, Units	[5]			$ 4,909,896
Amortized cost	[1],[5]			4,832,798
Fair value	[5],[7]			$ 4,196,979
Percentage of net assets	[5]			2.20%
Investment, Identifier [Axis]: Texas Contract Manufacturing Group, Inc. Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:TexasContractManufacturingGroupIncWarrantsAndOtherEquitySecuritiesMember		star:TexasContractManufacturingGroupIncWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]		true		true
Basis spread on variable rate	[14]	0.00%		0.00%
Interest Rate		0.00%		0.00%
Acquisition date		Apr. 27, 2022		Apr. 27, 2022
Principal, Shares, Units		$ 1,602		$ 1,602
Amortized cost	[1]	0		0
Fair value	[7]	$ 206,129		$ 490,323
Percentage of net assets		0.10%		0.30%
Investment, Identifier [Axis]: The Range NYC, LLC (dba Five Iron Golf) First Lien Senior Secured Term Loan SOFR Spread 7.61% Interest Rate 12.93% Due 9/15/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20],[23]	star:TheRangeNYCLLCDbaFiveIronGolfFirstLienSeniorSecuredTermLoanSOFRSpread761InterestRate1293Due9152027Member
Investment, Significant Unobservable Input [true false]	[20],[23]	true
Basis spread on variable rate	[14],[20],[23]	7.61%
Interest Rate	[20],[23]	12.93%
Acquisition date	[20],[23]	Sep. 15, 2022
Maturity date	[20],[23]	Sep. 15, 2027
Principal, Shares, Units	[20],[23]	$ 4,953,782
Amortized cost	[1],[20],[23]	4,831,364
Fair value	[7],[20],[23]	$ 4,877,989
Percentage of net assets	[20],[23]	2.40%
Investment, Identifier [Axis]: The Range NYC, LLC (dba Five Iron Golf) First Lien Senior Secured Term Loan SOFR Spread 7.61% Interest Rate 12.94% Due 9/15/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13],[25]			star:TheRangeNYCLLCDbaFiveIronGolfFirstLienSeniorSecuredTermLoanSOFRSpread761InterestRate1294Due9152027Member
Investment, Significant Unobservable Input [true false]	[5],[25]			true
Basis spread on variable rate	[5],[14],[25]			7.61%
Interest Rate	[5],[25]			12.94%
Acquisition date	[5],[25]			Sep. 15, 2022
Maturity date	[5],[25]			Sep. 15, 2027
Principal, Shares, Units	[5],[25]			$ 4,978,992
Amortized cost	[1],[5],[25]			4,839,259
Fair value	[5],[7],[25]			$ 4,876,922
Percentage of net assets	[5],[25]			2.60%
Investment, Identifier [Axis]: The Range NYC, LLC (dba Five Iron Golf) Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:TheRangeNYCLLCDbaFiveIronGolfWarrantsAndOtherEquitySecuritiesMember		star:TheRangeNYCLLCDbaFiveIronGolfWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]		true		true
Basis spread on variable rate	[14]	0.00%		0.00%
Interest Rate		0.00%		0.00%
Acquisition date		Sep. 15, 2022		Sep. 15, 2022
Principal, Shares, Units		$ 21,210		$ 21,210
Amortized cost	[1]	71,599		71,599
Fair value	[7]	$ 48,405		$ 32,606
Percentage of net assets		0.00%		0.00%
Investment, Identifier [Axis]: Trading Companies & Distributors First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:TradingCompaniesDistributorsFirstLienSeniorSecuredTermLoanMember		star:TradingCompaniesDistributorsFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 15,748,814
Amortized cost	[1]			15,510,605
Fair value	[7]			$ 10,144,017
Percentage of net assets				5.40%
Investment, Identifier [Axis]: Trading Companies & Distributors First Lien Senior Secured Term Loan Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 2,343,750
Amortized cost	[1]	2,304,868
Fair value	[7]	$ 1,032,188
Percentage of net assets		0.50%
Investment, Identifier [Axis]: Trading Companies & Distributors Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:TradingCompaniesDistributorsPreferredEquitySecuritiesMember		star:TradingCompaniesDistributorsPreferredEquitySecuritiesMember
Principal, Shares, Units				$ 9,844
Amortized cost	[1]			476,074
Fair value	[7]			$ 0
Percentage of net assets				0.00%
Investment, Identifier [Axis]: Trading Companies & Distributors Preferred Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 3,012,188
Amortized cost	[1]	5,163,574
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Trading Companies & Distributors Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:TradingCompaniesDistributorsWarrantsAndOtherEquitySecuritiesMember		star:TradingCompaniesDistributorsWarrantsAndOtherEquitySecuritiesMember
Principal, Shares, Units				$ 204
Amortized cost	[1]			0
Fair value	[7]			$ 0
Percentage of net assets				0.00%
Investment, Identifier [Axis]: Trading Companies & Distributors Warrants and Other Equity Securities Controlled Investments
Investments [Abstract]
Principal, Shares, Units		$ 204
Amortized cost	[1]	0
Fair value	[7]	$ 0
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Trailer Park Group Holdings LLC - Class A Units Preferred Equity Securities Interest Rate 8.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17],[18]	star:TrailerParkGroupHoldingsLLCClassAUnitsPreferredEquitySecuritiesInterestRate800PIKMember		star:TrailerParkGroupHoldingsLLCClassAUnitsPreferredEquitySecuritiesInterestRate800PIKMember
Investment, Significant Unobservable Input [true false]	[17],[18]	true		true
Basis spread on variable rate	[14],[17],[18]	0.00%		0.00%
PIK Interest Rate	[17],[18]	8.00%		8.00%
Acquisition date	[17],[18]	Aug. 02, 2021		Aug. 02, 2021
Principal, Shares, Units	[17],[18]	$ 371,822		$ 371,822
Amortized cost	[1],[17],[18]	367,108		367,108
Fair value	[7],[17],[18]	$ 737,695		$ 696,609
Percentage of net assets	[17],[18]	0.40%		0.40%
Investment, Identifier [Axis]: Trailer Park Group Holdings LLC - Class A-1 Units Preferred Equity Securities Interest Rate 15.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17],[18]	star:TrailerParkGroupHoldingsLLCClassA1UnitsPreferredEquitySecuritiesInterestRate1500PIKMember		star:TrailerParkGroupHoldingsLLCClassA1UnitsPreferredEquitySecuritiesInterestRate1500PIKMember
Investment, Significant Unobservable Input [true false]	[17],[18]	true		true
Basis spread on variable rate	[14],[17],[18]	0.00%		0.00%
Interest Rate	[17],[18]			0.00%
PIK Interest Rate	[17],[18]	15.00%
Acquisition date	[17],[18]	Dec. 19, 2023		Dec. 19, 2023
Principal, Shares, Units	[17],[18]	$ 40,888		$ 40,888
Amortized cost	[1],[17],[18]	73,599		73,599
Fair value	[7],[17],[18]	$ 110,402		$ 112,309
Percentage of net assets	[17],[18]	0.10%		0.10%
Investment, Identifier [Axis]: Trailer Park Group Holdings LLC First Lien Senior Secured Term Loan SOFR Spread 6.76% Plus 1.50% PIK Interest Rate 12.09% Plus 1.50% PIK Due 8/2/2026
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13]	star:TrailerParkGroupHoldingsLLCFirstLienSeniorSecuredTermLoanSOFRSpread676Plus150PIKInterestRate1209Plus150PIKDue822026Member	[20]	star:TrailerParkGroupHoldingsLLCFirstLienSeniorSecuredTermLoanSOFRSpread676CashPlus150PIKInterestRate1209CashPlus150PIKDue822026Member	[5]
Investment, Significant Unobservable Input [true false]	[3]	true	[20]	true	[5]
Basis spread on variable rate	[3],[14]	6.76%	[20]	6.76%	[5]
Paid in Kind Basis Spread Variable Rate	[3],[14]	1.50%	[20]	1.50%	[5]
Interest Rate	[3]	12.09%	[20]	12.09%	[5]
PIK Interest Rate	[3]	1.50%	[20]	1.50%	[5]
Acquisition date	[3]	Aug. 02, 2021	[20]	Aug. 02, 2021	[5]
Maturity date	[3]	Aug. 02, 2026	[20]	Aug. 02, 2026	[5]
Principal, Shares, Units	[3]	$ 14,631,083	[20]	$ 14,472,961	[5]
Amortized cost	[1],[3]	14,406,482	[20]	14,244,796	[5]
Fair value	[3],[7]	$ 14,631,083	[20]	$ 14,218,237	[5]
Percentage of net assets	[3]	7.20%	[20]	7.50%	[5]
Investment, Identifier [Axis]: Transportation Infrastructure First Lien Senior Secured Term Loan
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:TransportationInfrastructureFirstLienSeniorSecuredTermLoanMember		star:TransportationInfrastructureFirstLienSeniorSecuredTermLoanMember
Principal, Shares, Units				$ 10,676,188
Amortized cost	[1]			10,474,007
Fair value	[7]			$ 10,473,968
Percentage of net assets				5.50%
Investment, Identifier [Axis]: Transportation Infrastructure First Lien Senior Secured Term Loan Non-Affiliate Investments
Investments [Abstract]
Principal, Shares, Units		$ 10,542,871
Amortized cost	[1]	10,370,807
Fair value	[7]	$ 10,542,871
Percentage of net assets		5.20%
Investment, Identifier [Axis]: UJP Acquisition, LLC (dba Uncle John's Pride) Preferred Equity Securities Interest Rate 8.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17]	star:UJPAcquisitionLLCDbaUncleJohnSPridePreferredEquitySecuritiesInterestRate800PIKMember	[16],[29]	star:UJPAcquisitionLLCDbaUncleJohnSPridePreferredEquitySecuritiesInterestRate800PIKMember	[18]
Investment, Significant Unobservable Input [true false]	[17]	true	[16],[29]	true	[18]
Basis spread on variable rate	[14],[17]	0.00%	[16],[29]	0.00%	[18]
PIK Interest Rate	[17]	8.00%	[16],[29]	8.00%	[18]
Acquisition date	[17]	Mar. 31, 2022	[16],[29]	Mar. 31, 2022	[18]
Principal, Shares, Units	[17]	$ 2,829,787	[16],[29]	$ 2,829,787	[18]
Amortized cost	[1],[17]	2,829,787	[16],[29]	2,829,787	[18]
Fair value	[7],[17]	$ 4,309,021	[16],[29]	$ 4,482,681	[18]
Percentage of net assets	[17]	2.00%	[16],[29]	2.40%	[18]
Investment, Identifier [Axis]: UJP Acquisition, LLC (dba Uncle John's Pride) Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:UJPAcquisitionLLCDbaUncleJohnSPrideWarrantsAndOtherEquitySecuritiesMember	[16]	star:UJPAcquisitionLLCDbaUncleJohnSPrideWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true	[16]	true
Basis spread on variable rate	[14],[18]	0.00%	[16]	0.00%
Interest Rate	[18]	0.00%	[16]	0.00%
Acquisition date	[18]	Mar. 31, 2022	[16]	Mar. 31, 2022
Principal, Shares, Units	[18]	$ 127,215	[16]	$ 127,215
Amortized cost	[1],[18]	0	[16]	0
Fair value	[7],[18]	$ 45,872	[16]	$ 53,021
Percentage of net assets	[18]	0.00%	[16]	0.00%
Investment, Identifier [Axis]: USBid Inc. - Class A Units Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]			star:USBidIncClassAUnitsPreferredEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]				true
Basis spread on variable rate	[14]			0.00%
Interest Rate				0.00%
Acquisition date				Nov. 03, 2022
Principal, Shares, Units				$ 469
Amortized cost	[1]			468,750
Fair value	[7]			$ 0
Percentage of net assets				0.00%
Investment, Identifier [Axis]: USBid Inc. - Class C Units Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]			star:USBidIncClassCUnitsPreferredEquitySecuritiesMember, star:USBidIncPreferredEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]				true
Basis spread on variable rate	[14]			0.00%
PIK Interest Rate				10.00%
Acquisition date				Nov. 02, 2023
Principal, Shares, Units				$ 9,375
Amortized cost	[1]			7,324
Fair value	[7]			$ 0
Percentage of net assets				0.00%
Investment, Identifier [Axis]: USBid Inc. First Lien Senior Secured Term Loan SOFR Spread 7.26% Interest Rate 12.56% Due 11/3/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[5],[8],[9],[10],[11],[12],[13]			star:USBidIncFirstLienSeniorSecuredTermLoanSOFRSpread726InterestRate1259Due1132027Member
Investment, Significant Unobservable Input [true false]	[3],[5]			true
Basis spread on variable rate	[3],[5],[14]			7.26%
Interest Rate	[3],[5]			12.59%
Acquisition date	[3],[5]			Nov. 03, 2022
Maturity date	[3],[5]			Nov. 03, 2027
Principal, Shares, Units	[3],[5]			$ 7,154,451
Amortized cost	[1],[3],[5]			7,016,197
Fair value	[3],[5],[7]			$ 1,549,654
Percentage of net assets	[3],[5]			0.90%
Investment, Identifier [Axis]: USBid Inc. First Lien Senior Secured Term Loan SOFR Spread 7.26% Interest Rate 12.59% Due 11/3/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[16],[20]	star:USBidIncFirstLienSeniorSecuredTermLoanSOFRSpread726InterestRate1259Due1132027Member
Investment, Significant Unobservable Input [true false]	[3],[16],[20]	true
Basis spread on variable rate	[3],[14],[16],[20]	7.26%
Interest Rate	[3],[16],[20]	12.59%
Acquisition date	[3],[16],[20]	Nov. 03, 2022
Maturity date	[3],[16],[20]	Nov. 03, 2027
Principal, Shares, Units	[3],[16],[20]	$ 2,343,750
Amortized cost	[1],[3],[16],[20]	2,304,868
Fair value	[3],[7],[16],[20]	$ 1,032,188
Percentage of net assets	[3],[16],[20]	0.50%
Investment, Identifier [Axis]: USBid Inc. Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]			star:USBidIncWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]				true
Basis spread on variable rate	[14]			0.00%
Interest Rate				0.00%
Acquisition date				Nov. 03, 2022
Principal, Shares, Units				$ 204
Amortized cost	[1]			0
Fair value	[7]			$ 0
Percentage of net assets				0.00%
Investment, Identifier [Axis]: USBid Parent, LLC - Class A Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[16]	star:USBidParentLLCClassAPreferredEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[16]	true
Basis spread on variable rate	[14],[16]	0.00%
Interest Rate	[16]	0.00%
Acquisition date	[16]	Nov. 03, 2022
Principal, Shares, Units	[16]	$ 2,813
Amortized cost	[1],[16]	2,812,500
Fair value	[7],[16]	$ 0
Percentage of net assets	[16]	0.00%
Investment, Identifier [Axis]: USBid Parent, LLC - Class C Preferred Equity Securities Interest 10.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[16]	star:USBidParentLLCClassCPreferredEquitySecuritiesInterest1000PIKMember
Investment, Significant Unobservable Input [true false]	[16]	true
Basis spread on variable rate	[14],[16]	0.00%
PIK Interest Rate	[16]	10.00%
Acquisition date	[16]	Nov. 02, 2023
Principal, Shares, Units	[16]	$ 9,375
Amortized cost	[1],[16]	7,324
Fair value	[7],[16]	$ 0
Percentage of net assets	[16]	0.00%
Investment, Identifier [Axis]: USBid Parent, LLC - Class C2 Preferred Equity Securities Interest 10.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[16]	star:USBidParentLLCClassC2PreferredEquitySecuritiesInterest1000PIKMember
Investment, Significant Unobservable Input [true false]	[16]	true
Basis spread on variable rate	[14],[16]	0.00%
PIK Interest Rate	[16]	10.00%
Acquisition date	[16]	Apr. 12, 2024
Principal, Shares, Units	[16]	$ 600,000
Amortized cost	[1],[16]	468,750
Fair value	[7],[16]	$ 0
Percentage of net assets	[16]	0.00%
Investment, Identifier [Axis]: USBid Parent, LLC - Class C3 Preferred Equity Securities Interest 10.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[16]	star:USBidParentLLCClassC3PreferredEquitySecuritiesInterest1000PIKMember
Investment, Significant Unobservable Input [true false]	[16]	true
Basis spread on variable rate	[14],[16]	0.00%
PIK Interest Rate	[16]	10.00%
Acquisition date	[16]	Apr. 12, 2024
Principal, Shares, Units	[16]	$ 2,400,000
Amortized cost	[1],[16]	1,875,000
Fair value	[7],[16]	$ 0
Percentage of net assets	[16]	0.00%
Investment, Identifier [Axis]: USBid Parent, LLC Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[16]	star:USBidParentLLCWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[16]	true
Basis spread on variable rate	[14],[16]	0.00%
Interest Rate	[16]	0.00%
Acquisition date	[16]	Nov. 03, 2022
Principal, Shares, Units	[16]	$ 204
Amortized cost	[1],[16]	0
Fair value	[7],[16]	$ 0
Percentage of net assets	[16]	0.00%
Investment, Identifier [Axis]: Uncle John's Pride, LLC First Lien Senior Secured Term Loan SOFR Spread 10.11% Interest Rate 15.44% Due 3/31/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[4],[8],[9],[10],[11],[12],[13]			star:UncleJohnSPrideLLCFirstLienSeniorSecuredTermLoanSOFRSpread1011InterestRate1491Due3312027Member
Investment, Significant Unobservable Input [true false]	[4]			true
Basis spread on variable rate	[4],[14]			10.11%
Paid in Kind Basis Spread Variable Rate	[4]			15.46%
Acquisition date	[4]			Mar. 31, 2022
Maturity date	[4]			Mar. 31, 2027
Principal, Shares, Units	[4]			$ 7,146,952
Amortized cost	[1],[4]			7,017,250
Fair value	[4],[7]			$ 7,146,952
Percentage of net assets	[4]			3.80%
Investment, Identifier [Axis]: Uncle John's Pride, LLC First Lien Senior Secured Term Loan SOFR Spread 10.11% Interest Rate 15.45% Due 3/31/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[15],[16]	star:UncleJohnSPrideLLCFirstLienSeniorSecuredTermLoanSOFRSpread1011InterestRate1545Due3312027Member
Investment, Significant Unobservable Input [true false]	[15],[16]	true
Basis spread on variable rate	[14],[15],[16]	10.11%
Interest Rate	[15],[16]	15.45%
Acquisition date	[15],[16]	Mar. 31, 2022
Maturity date	[15],[16]	Mar. 31, 2027
Principal, Shares, Units	[15],[16]	$ 7,082,792
Amortized cost	[1],[15],[16]	6,967,229
Fair value	[7],[15],[16]	$ 7,131,663
Percentage of net assets	[15],[16]	3.50%
Investment, Identifier [Axis]: Versar Inc. First Lien Senior Secured Term Loan SOFR Spread 8.10% Interest Rate 13.42% Due 8/4/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[20]	star:VersarIncFirstLienSeniorSecuredTermLoanSOFRSpread810InterestRate1342Due842028Member
Investment, Significant Unobservable Input [true false]	[3],[20]	true
Basis spread on variable rate	[3],[14],[20]	8.10%
Interest Rate	[3],[20]	13.42%
Acquisition date	[3],[20]	Aug. 04, 2023
Maturity date	[3],[20]	Aug. 04, 2028
Principal, Shares, Units	[3],[20]	$ 10,000,000
Amortized cost	[1],[3],[20]	9,647,284
Fair value	[3],[7],[20]	$ 9,647,284
Percentage of net assets	[3],[20]	4.70%
Investment, Identifier [Axis]: Versar Inc. First Lien Senior Secured Term Loan SOFR Spread 8.10% Interest Rate 13.43% Due 8/4/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[5],[8],[9],[10],[11],[12],[13]			star:VersarIncSeniorSecuredTermLoanSOFRSpread810InterestRate1343Due842028Member
Investment, Significant Unobservable Input [true false]	[3],[5]			true
Basis spread on variable rate	[3],[5],[14]			8.10%
Interest Rate	[3],[5]			13.43%
Acquisition date	[3],[5]			Aug. 04, 2023
Maturity date	[3],[5]			Aug. 04, 2028
Principal, Shares, Units	[3],[5]			$ 10,000,000
Amortized cost	[1],[3],[5]			9,662,349
Fair value	[3],[5],[7]			$ 9,662,349
Percentage of net assets	[3],[5]			5.10%
Investment, Identifier [Axis]: Vertical Mechanical Group Holdings, LLC Preferred Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:VerticalMechanicalGroupHoldingsLLCPreferredEquitySecuritiesMember		star:VerticalMechanicalGroupHoldingsLLCPreferredEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true		true
Basis spread on variable rate	[14],[18]	0.00%		0.00%
Interest Rate	[18]			0.00%
PIK Interest Rate	[18]	0.00%
Acquisition date	[18]	May 12, 2023		May 12, 2023
Principal, Shares, Units	[18]	$ 185,714		$ 185,714
Amortized cost	[1],[18]	1,857,143		1,857,143
Fair value	[7],[18]	$ 4,184,000		$ 3,188,286
Percentage of net assets	[18]	2.00%		1.70%
Investment, Identifier [Axis]: Vertical Mechanical Group, LLC First Lien Senior Secured Term Loan SOFR Spread 7.76% Interest Rate 13.09% Due 5/12/2028
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13]	star:VerticalMechanicalGroupLLCSeniorSecuredTermLoanSOFRSpread776InterestRate1309Due5122028Member	[20]	star:VerticalMechanicalGroupLLCSeniorSecuredTermLoanSOFRSpread776InterestRate1309Due5122028Member	[5]
Investment, Significant Unobservable Input [true false]	[3]	true	[20]	true	[5]
Basis spread on variable rate	[3],[14]	7.76%	[20]	7.76%	[5]
Interest Rate	[3]	13.09%	[20]	13.09%	[5]
Acquisition date	[3]	May 12, 2023	[20]	May 12, 2023	[5]
Maturity date	[3]	May 12, 2028	[20]	May 12, 2028	[5]
Principal, Shares, Units	[3]	$ 4,571,429	[20]	$ 4,571,429	[5]
Amortized cost	[1],[3]	4,424,820	[20]	4,420,000	[5]
Fair value	[3],[7]	$ 4,571,429	[20]	$ 4,420,000	[5]
Percentage of net assets	[3]	2.20%	[20]	2.30%	[5]
Investment, Identifier [Axis]: Warrants and Other Equity Securities
Investments [Abstract]
Investment, Type [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[28],[29]	Warrants and Other Equity Securities [Member]		Warrants and Other Equity Securities [Member]
Amortized cost	[1]			$ 2,867,756
Fair value	[7]			$ 5,706,423
Percentage of net assets				3.10%
Investment, Identifier [Axis]: Warrants and Other Equity Securities Controlled Investments
Investments [Abstract]
Amortized cost	[1]	$ 443,392
Fair value	[7]	$ 45,872
Percentage of net assets		0.00%
Investment, Identifier [Axis]: Warrants and Other Equity Securities Non-Affiliate Investments
Investments [Abstract]
Amortized cost	[1]	$ 3,154,635
Fair value	[7]	$ 5,939,547
Percentage of net assets		2.90%
Investment, Identifier [Axis]: Watt Acquisition, LLC First Lien Senior Secured Term Loan SOFR Spread 14.25% Interest Rate 13.68% Plus 5.86% PIK Due 4/15/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[5],[8],[9],[10],[11],[12],[13]			star:WattAcquisitionLLCFirstLienSeniorSecuredTermLoanSOFRSpread1125InterestRate1616Due4152027Member
Investment, Significant Unobservable Input [true false]	[3],[5]			true
Basis spread on variable rate	[3],[5],[14]			11.25%
Interest Rate	[3],[5]			16.58%
Acquisition date	[3],[5]			Apr. 15, 2022
Maturity date	[3],[5]			Apr. 15, 2027
Principal, Shares, Units	[3],[5]			$ 3,653,125
Amortized cost	[1],[3],[5]			3,597,178
Fair value	[3],[5],[7]			$ 3,132,920
Percentage of net assets	[3],[5]			1.60%
Investment, Identifier [Axis]: Watt Acquisition, LLC First Lien Senior Secured Term Loan SOFR Spread 14.25% Interest Rate 13.70% Cash 5.87% PIK Due 4/15/2027
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[3],[8],[9],[10],[11],[12],[13],[16],[20]	star:WattAcquisitionLLCFirstLienSeniorSecuredTermLoanSOFRSpread1425InterestRate1370Cash587PIKDue4152027Member
Investment, Significant Unobservable Input [true false]	[3],[16],[20]	true
Basis spread on variable rate	[3],[14],[16],[20]	14.25%
Interest Rate	[3],[16],[20]	13.70%
PIK Interest Rate	[3],[16],[20]	5.87%
Acquisition date	[3],[16],[20]	Apr. 15, 2022
Maturity date	[3],[16],[20]	Apr. 15, 2027
Principal, Shares, Units	[3],[16],[20]	$ 2,499,935
Amortized cost	[1],[3],[16],[20]	2,468,253
Fair value	[3],[7],[16],[20]	$ 1,752,954
Percentage of net assets	[3],[16],[20]	0.90%
Investment, Identifier [Axis]: Watt Contracting Holdings, LLC Preferred Equity Securities Interest Rate 15.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:WattContractingHoldingsLLCPreferredEquitySecuritiesInterestRate1500PIKMember	[16]	star:WattContractingHoldingsLLCPreferredEquitySecuritiesInterestRate1500PIKMember
Investment, Significant Unobservable Input [true false]	[18]	true	[16]	true
Basis spread on variable rate	[14],[18]	0.00%	[16]	0.00%
PIK Interest Rate	[18]	15.00%	[16]	15.00%
Acquisition date	[18]	Apr. 15, 2022	[16]	Apr. 15, 2022
Principal, Shares, Units	[18]	$ 3,375	[16]	$ 2,110
Amortized cost	[1],[18]	3,316,130	[16]	2,077,366
Fair value	[7],[18]	$ 0	[16]	$ 133,929
Percentage of net assets	[18]	0.00%	[16]	0.10%
Investment, Identifier [Axis]: Watt Contracting Holdings, LLC Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[18]	star:WattContractingHoldingsLLCWarrantsAndOtherEquitySecuritiesMember	[16]	star:WattContractingHoldingsLLCWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]	[18]	true	[16]	true
Basis spread on variable rate	[14],[18]	0.00%	[16]	0.00%
Interest Rate	[18]	0.00%	[16]	0.00%
Acquisition date	[18]	Apr. 15, 2022	[16]	Apr. 15, 2022
Principal, Shares, Units	[18]	$ 295	[16]	$ 218
Amortized cost	[1],[18]	0	[16]	0
Fair value	[7],[18]	$ 0	[16]	$ 0
Percentage of net assets	[18]	0.00%	[16]	0.00%
Investment, Identifier [Axis]: YTC Holdings, Inc. (dba Yorktel) First Lien Senior Secured Term Loan SOFR Spread 10.01% Interest Rate 15.31% Due 1/31/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[5],[8],[9],[10],[11],[12],[13],[25]			star:YTCHoldingsIncDbaYorktelFirstLienSeniorSecuredTermLoanLIBORSpread975InterestRate1494Due9232024Member
Investment, Significant Unobservable Input [true false]	[5],[25]			true
Basis spread on variable rate	[5],[14],[25]			10.01%
Interest Rate	[5],[25]			15.34%
Acquisition date	[5],[25]			Sep. 23, 2019
Maturity date	[5],[25]			Jan. 31, 2025
Principal, Shares, Units	[5],[25]			$ 4,632,805
Amortized cost	[1],[5],[25]			4,600,276
Fair value	[5],[7],[25]			$ 4,632,805
Percentage of net assets	[5],[25]			2.40%
Investment, Identifier [Axis]: YTC Holdings, Inc. (dba Yorktel) First Lien Senior Secured Term Loan SOFR Spread 10.01% Interest Rate 15.34% Due 6/17/2025
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[20]	star:YTCHoldingsIncDbaYorktelFirstLienSeniorSecuredTermLoanSOFRSpread1001InterestRate1534Due6172025Member
Investment, Significant Unobservable Input [true false]	[20]	true
Basis spread on variable rate	[14],[20]	10.01%
Interest Rate	[20]	15.34%
Acquisition date	[20]	Sep. 23, 2019
Maturity date	[20]	Jun. 17, 2025
Principal, Shares, Units	[20]	$ 5,107,856
Amortized cost	[1],[20]	5,070,245
Fair value	[7],[20]	$ 5,107,856
Percentage of net assets	[20]	2.50%
Investment, Identifier [Axis]: York Telecom Corporation (dba Yorktel) Preferred Equity Securities Interest Rate 8.00% PIK
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13],[17]	star:YorkTelecomCorporationDbaYorktelPreferredEquitySecuritiesInterestRate800PIKMember		star:YTCHoldingsIncDbaYorktelPreferredEquitySecuritiesInterestRate800PIKMember
Investment, Significant Unobservable Input [true false]	[17]	true		true
Basis spread on variable rate	[14],[17]	0.00%		0.00%
PIK Interest Rate	[17]	8.00%		8.00%
Acquisition date	[17]	Sep. 23, 2019		Sep. 23, 2019
Principal, Shares, Units	[17]	$ 151,018		$ 151,018
Amortized cost	[1],[17]	2,327,393		2,327,393
Fair value	[7],[17]	$ 2,190,321		$ 1,926,709
Percentage of net assets	[17]	1.00%		1.00%
Investment, Identifier [Axis]: York Telecom Corporation (dba Yorktel) Warrants and Other Equity Securities
Investments [Abstract]
Investment, Issuer Name [Extensible Enumeration]	[8],[9],[10],[11],[12],[13]	star:YorkTelecomCorporationDbaYorktelWarrantsAndOtherEquitySecuritiesMember		star:YorkTelecomCorporationDbaYorktelWarrantsAndOtherEquitySecuritiesMember
Investment, Significant Unobservable Input [true false]		true		true
Basis spread on variable rate	[14]	0.00%		0.00%
Interest Rate		0.00%		0.00%
Acquisition date		Sep. 23, 2019		Sep. 23, 2019
Principal, Shares, Units		$ 77,195		$ 77,195
Amortized cost	[1]	0		0
Fair value	[7]	$ 665,464		$ 582,640
Percentage of net assets		0.30%		0.30%

[1] The amortized cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method.

[2] Interest disclosed reflects the contractual rate of the First Out tranche under the AAL.

[3] The Company categorized its unitranche loans as First Lien Senior Secured Loans. The First Lien Senior Secured Loan is comprised of two components: a first out tranche (“First Out”) and last out tranche (“Last Out”). The Company syndicates the First Out tranche and retains the Last Out tranche. The First Out and Last Out tranches have the same maturity date. Interest disclosed reflects the contractual rate of First Lien Senior Secured Loan. The First Out tranche has priority as to the Last Out tranche with respect to payments of principal, interest and any amounts due thereunder. The Company may be entitled to receive additional interest as a result of the Agreement Among Lenders (“AAL”) entered into with the First Out lender. In exchange for the higher interest rate, the Last Out portion is at a greater risk of loss.

[4] The interest rate on these loans is subject to 1 month SOFR, which was 5.35% as of December 31, 2023.

[5] The interest rate on these loans is subject to 3 month SOFR, which was 5.33% as of December 31, 2023.

[6] The investment does not accrue PIK for the debt investment as of December 31, 2023. See Note 2. "Significant Accounting Policies".

[7] Because there is no readily available market value for these investments, the fair value of each of these investments is determined in good faith using significant unobservable inputs by the Company’s board of directors (the “Board”) as required by the 1940 Act. See Note 4 “Fair Value Measurements” in the accompanying notes to the consolidated financial statements.

[8] All investments are co-investments made with the Company’s affiliates in accordance with the terms of the exemptive relief that the Company received from the U.S. Securities and Exchange Commission (the “SEC”), unless otherwise noted. See Note 6 “Transactions with Related Parties” in the accompanying notes to the consolidated financial statements.

[9] All investments are non-controlled/non-affiliated investments as defined by the 1940 Act, unless otherwise noted. The 1940 Act classifies investments based on the level of control that the Company maintains in a particular portfolio company.

[10] All of the Company’s investments are issued by eligible portfolio companies, as defined in the Investment Company Act of 1940 (the “1940 Act”), unless otherwise noted. All of the Company’s investments are issued by U.S. portfolio companies unless otherwise noted.

[11] Except as otherwise noted, all of the Company’s portfolio company investments are subject to legal restrictions on sales.

[12] Unless otherwise indicated, all investments are considered Level 3 assets.

[13] Unless otherwise indicated, the Company’s portfolio companies are pledged as collateral supporting the amounts outstanding under the Secured Credit Facility (as defined herein).

[14] Loan contains a variable rate structure and may be subject to an interest rate floor. Variable rate loans bear interest at a rate that may be determined by reference to either the Secured Overnight Financing Rate (“SOFR” or “S”) or an alternate base rate which can include the Federal Funds Effective Rate or the Prime Rate, at the borrower’s option, and which reset periodically based on the terms of the loan agreement. Interest rates subject to SOFR are typically accompanied by a Credit Spread Adjustment (“CSA”).

[15] The interest rate on these loans is subject to 1 month SOFR, which was 5.34% as of June 30, 2024.

[16] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” and may have “Control” of this portfolio company as the Company and/or its affiliated funds collectively owns more than 25% of the portfolio company’s outstanding voting securities or has the power to exercise control over management or policies of such portfolio company (including through a management agreement). The Company’s investment in affiliates for the six months ended June 30, 2024 were Arrow Home Health, LLC, Caregility Corporation, LaSalle Staffing, LLC, Microf, LLC, Uncle John’s Pride, LLC, USBid Inc and Watt Acquisition, LLC which represented $40,617,040 of Fair Value and 19.9% of Net Assets of the Company. Transactions related to investments in “Controlled/Affiliate Investments” for the six months ended June 30, 2024 were as follows:

[17] Investment contains a fixed rate structure.

[18] Investment is held by a subsidiary of the Company. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s wholly-owned subsidiary.

[19] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” and may have “Control” of this portfolio company as the Company and/or its affiliated funds collectively owns more than 25% of the portfolio company’s outstanding voting securities or has the power to exercise control over management or policies of such portfolio company (including through a management agreement). The Company’s investment in affiliates for the year ended December 31, 2023 were Arrow Home Health, LLC and Caregility Corporation which represented $9,370,413 of Fair Value and 4.9% of Net Assets of the Company. Transactions related to investments in “Controlled/Affiliate Investments” for the year ended December 31, 2023 were as follows:

[20] The interest rate on these loans is subject to 3 month SOFR, which was 5.32% as of June 30, 2024.

[21] Maturity date is under on-going negotiations with the portfolio company and other lenders, as applicable.

[22] The investment is on non-accrual status. See Note 2 “Significant Accounting Policies”.

[23] Positions have an aggregate unfunded commitment of $7,937,099 in addition to the amounts shown in the Consolidated Schedule of Investments. See Note 11 “Commitments, Contingencies and Risks” in the accompanying notes to the consolidated financial statements.

[24] The investment does not accrue payment-in-kind (“PIK”) for the debt investment as of June 30, 2024. See Note 2. “Significant Accounting Policies”.

[25] Positions have an aggregate unfunded commitment of $16,702,595 in addition to the amounts shown in the Consolidated Schedule of Investments. See Note 11 “Commitments, Contingencies and Risks” in the accompanying notes to the consolidated financial statements.

[26] The Company has received 46 units of incentive shares which have no Cost or Fair Value as of June 30, 2024.

[27] The Company has received 46 units of incentive shares which have no Cost or Fair Value as of December 31, 2023.

[28] All investments are non-income producing unless otherwise indicated.

[29] Ownership of certain equity investments may occur through a holding company or partnership.

[30] The investment includes the fair value and amortized cost of 1,015 shares of common equity issued in conjunction with the preferred equity.