Borrowings - Amendments to Corporate Financing (Details) - Acquisition and Corporate Financing Debt - Neuberger Berman Specialty Finance $ in Millions	Mar. 12, 2024 USD ($)
Debt Instrument [Line Items]
Interest rate step-up (as a percent)	3.00%
Asset coverage ratio (less than)	1.00
Debt instrument, periodic payment	$ 5.7
Required principal payment, as percentage of net cash proceeds	100.00%