Commitments and Contingencies - Schedule of Commitments To Fund Investments In Current Portfolio Companies (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Dec. 31, 2023
Loss Contingencies [Line Items]
Total Portfolio Company Commitments	[1],[2]	$ 977,946	$ 358,502
Revolver | Artisan Bidco, Inc
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		16,886	21,283
Revolver | Avalara, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		13,636	13,636
Revolver | Disco Parent, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		5,776	5,776
Revolver | Greenshoot Bidco B.V.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		438
Revolver | Galileo Parent Inc
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		7,404	15,817
Revolver | Hirevue, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		8,367	14,113
Revolver | Ping Identity Holding Corp.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments			13,636
Revolver | Sport Alliance GmbH
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		698
Revolver | Sapphire Software Buyer, Inc
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		27,027
Revolver | Raptor US Buyer II Corp [Member]
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		4,318
Revolver | Wrangler Topco, LLC
Loss Contingencies [Line Items]
Total Portfolio Company Commitments			9,576
Delayed Draw & Revolver | Alaska Bidco Oy
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		233	231
Delayed Draw & Revolver | Aptean, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		24,089
Delayed Draw & Revolver | BTRS Holdings, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		10,525	16,689
Delayed Draw & Revolver | Coupa Holdings, LLC
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		20,427	20,427
Delayed Draw & Revolver | Edge Bidco BV
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		1,071	1,060
Delayed Draw & Revolver | Erling Lux Bidco SARL
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		8,480	3,184
Delayed Draw & Revolver | Fullsteam Operations LLC
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		47,201	31,239
Delayed Draw & Revolver | Heritage Environmental Services, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		28,485
Delayed Draw & Revolver | Hippo XPA Bidco AB
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		1,850
Delayed Draw & Revolver | Hornetsecurity Holding GmbH
Loss Contingencies [Line Items]
Total Portfolio Company Commitments			2,113
Delayed Draw & Revolver | Merit Software Finance Holdings LLC
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		4,286
Delayed Draw & Revolver | PDI TA Holdings, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		43,317
Delayed Draw & Revolver | Lynx BidCo
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		25,077
Delayed Draw & Revolver | Rapid Data GmbH Unternehmensberatung
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		4,753	6,255
Delayed Draw & Revolver | Truck-Lite Co., LLC
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		60,896
Delayed Draw & Revolver | USA Debusk LLC
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		39,175
Delayed Draw & Revolver | Wrangler Topco, LLC
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		32,377
Delayed Draw | Apellis Pharmaceuticals, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		42,105
Delayed Draw | Arrow Buyer, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		20,157	28,125
Delayed Draw | Arrowhead Pharmaceuticals, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		140,385
Delayed Draw | Babylon Finco Limited
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		16,527
Delayed Draw | Banyan Software Holdings, LLC
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		67,527	20,073
Delayed Draw | BCTO Bluebill Buyer, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		1,074	1,325
Delayed Draw | Ben Nevis Midco Limited
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		27,307
Delayed Draw | Cirrus Bidco Ltd
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		447
Delayed Draw | Elements Finco Limited
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		48,138
Delayed Draw | Kangaroo Bidco A S
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		22,500	53,817
Delayed Draw | Laramie Energy, LLC
Loss Contingencies [Line Items]
Total Portfolio Company Commitments			27,439
Delayed Draw | Outsystems Holdings S.A.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments			2,212
Delayed Draw | OutSystems Luxco SARL
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		2,235
Delayed Draw | Scorpio Bidco
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		16,377
Delayed Draw | SkyLark UK DebtCo
Loss Contingencies [Line Items]
Total Portfolio Company Commitments			28,192
Delayed Draw | SkyLark UK DebtCo Limited
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		25,795
Delayed Draw | SL Buyer Corp
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		1,332	1,475
Delayed Draw | Shiftmove GmbH
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		6,510
Delayed Draw | Varinem German Bidco GmbH
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		3,830
Delayed Draw, Revolver & Equity | Azurite Intermediate Holdings, Inc
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		82,613
Revolver & Equity | Crewline Buyer, Inc.
Loss Contingencies [Line Items]
Total Portfolio Company Commitments		$ 16,295	$ 20,809

[1] Represents the full amount of the Company’s commitments to fund investments on such date. Commitments may be subject to limitations on borrowings set forth in the agreements between the Company and the applicable portfolio company. As a result, portfolio companies may not be eligible to borrow the full commitment amount on such date.

[2] The Company’s estimate of the fair value of the current investments in these portfolio companies includes an analysis of the fair value of any unfunded commitments.