Derivatives - Schedule of Forward Currency Contracts (Details) € in Thousands, £ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	Mar. 31, 2026 EUR (€)	Mar. 31, 2026 USD ($)	Mar. 31, 2026 GBP (£)	Mar. 31, 2026 CAD ($)	Mar. 31, 2026 AUD ($)	Sep. 30, 2025 EUR (€)	Sep. 30, 2025 USD ($)	Sep. 30, 2025 GBP (£)	Sep. 30, 2025 CAD ($)	Sep. 30, 2025 AUD ($)
Open Forward Foreign Currency Contract, Identifier [Axis]: Macquarie Bank Limited
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation		$ 1,263					$ 0
Unrealized depreciation		(2,040)					(7,366)
Open Forward Foreign Currency Contract, Identifier [Axis]: Macquarie Bank Limited, Settlement Date 1/30/2026
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | €						€ 3,900
Currency to be purchased							4,371
Unrealized appreciation							0
Unrealized depreciation							(235)
Open Forward Foreign Currency Contract, Identifier [Axis]: Macquarie Bank Limited, Settlement Date 2/2/2026
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | £								£ 21,900
Currency to be purchased							27,811
Unrealized appreciation							0
Unrealized depreciation							(1,615)
Open Forward Foreign Currency Contract, Identifier [Axis]: Macquarie Bank Limited, Settlement Date 2/2/2028
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | £			£ 22,000
Currency to be purchased		30,140
Unrealized appreciation		1,263
Unrealized depreciation		0
Open Forward Foreign Currency Contract, Identifier [Axis]: Macquarie Bank Limited, Settlement Date 2/5/2026 Contract 1
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | €						35,000
Currency to be purchased							39,008
Unrealized appreciation							0
Unrealized depreciation							(2,338)
Open Forward Foreign Currency Contract, Identifier [Axis]: Macquarie Bank Limited, Settlement Date 2/5/2026 Contract 2
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold										$ 26,100
Currency to be purchased							17,179
Unrealized appreciation							0
Unrealized depreciation							(109)
Open Forward Foreign Currency Contract, Identifier [Axis]: Macquarie Bank Limited, Settlement Date 5/12/2027
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | €	€ 14,650					14,650
Currency to be purchased		16,498					16,498
Unrealized appreciation		0					0
Unrealized depreciation		(645)					(1,079)
Open Forward Foreign Currency Contract, Identifier [Axis]: Macquarie Bank Limited, Settlement Date 5/27/2027
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | €	20,300					20,300
Currency to be purchased		22,346					22,346
Unrealized appreciation		0					0
Unrealized depreciation		(1,395)					(1,990)
Open Forward Foreign Currency Contract, Identifier [Axis]: Macquarie Bank Limited, Settlement Date 6/15/2029
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation		1,009					2,343
Unrealized depreciation		0					0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation		1,792					185
Unrealized depreciation		0					(5,432)
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Inc
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation		8,383					18,065
Unrealized depreciation		(2,190)					(689)
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Inc and Macquarie Bank Limited
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation		1,009					2,343
Unrealized depreciation		0					0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Inc, Settlement Date 11/5/2028 Contract 1
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation		1,543
Unrealized depreciation		0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Inc, Settlement Date 11/5/2028 Contract 2
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation		4,288
Unrealized depreciation		0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Inc, Settlement Date 11/5/2028 contract 1
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation							3,513
Unrealized depreciation							0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Inc, Settlement Date 11/5/2028 contract 2
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation							6,772
Unrealized depreciation							0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Inc, Settlement Date 12/5/2028
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation		0					0
Unrealized depreciation		(2,190)					(689)
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Inc, Settlement Date 6/15/2029
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation		2,552					7,780
Unrealized depreciation		0					0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Settlement Date 1/20/2026 Contract 1
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | €						22,000
Currency to be purchased							24,594
Unrealized appreciation							0
Unrealized depreciation							(1,367)
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Settlement Date 1/20/2026 Contract 2
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | €						23,750
Currency to be purchased							26,543
Unrealized appreciation							0
Unrealized depreciation							(1,483)
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Settlement Date 1/20/2028
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | €	22,600
Currency to be purchased		26,965
Unrealized appreciation		277
Unrealized depreciation		0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Settlement Date 2/2/2026
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold									$ 7,400
Currency to be purchased							5,533
Unrealized appreciation							185
Unrealized depreciation							0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Settlement Date 2/2/2028
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold				$ 12,500
Currency to be purchased		9,398
Unrealized appreciation		227
Unrealized depreciation		0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Settlement Date 2/4/2028
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | £			22,800
Currency to be purchased		31,131
Unrealized appreciation		1,212
Unrealized depreciation		0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Settlement Date 2/5/2026
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | £								£ 21,900
Currency to be purchased							27,746
Unrealized appreciation							0
Unrealized depreciation							(1,672)
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Settlement Date 5/27/2027
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | €	33,200
Currency to be purchased		39,008
Unrealized appreciation		76
Unrealized depreciation		0
Open Forward Foreign Currency Contract, Identifier [Axis]: SMBC Capital Markets, Settlement Date 5/27/2027
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | €						€ 33,200
Currency to be purchased							39,008
Unrealized appreciation							0
Unrealized depreciation							$ (910)
Open Forward Foreign Currency Contract, Identifier [Axis]: Wells Fargo Bank
Open Forward Foreign Currency Contract [Line Items]
Unrealized appreciation		706
Unrealized depreciation		0
Open Forward Foreign Currency Contract, Identifier [Axis]: Wells Fargo Bank, N.A., Settlement Date 1/20/2028
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | €	€ 30,700
Currency to be purchased		36,579
Unrealized appreciation		329
Unrealized depreciation		0
Open Forward Foreign Currency Contract, Identifier [Axis]: Wells Fargo Bank, N.A., Settlement Date 10/28/2026
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold | £			£ 13,900
Currency to be purchased		18,492
Unrealized appreciation		138
Unrealized depreciation		0
Open Forward Foreign Currency Contract, Identifier [Axis]: Wells Fargo Bank, N.A., Settlement Date 2/4/2028
Open Forward Foreign Currency Contract [Line Items]
Currency to be sold					$ 27,000
Currency to be purchased		18,549
Unrealized appreciation		239
Unrealized depreciation		$ 0