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Borrowings - Schedule of Line of Credit Facility Debt and Key Terms (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Mar. 04, 2021
Senior Convertible Notes
Debt Instrument [Line Items]
Amount Due	$ 230.0	$ 230.0
Annual interest rate	2.50%
Maturity date	2026-03
Conversion price	$ 5.21		$ 5.21
MidCap Credit Facility
Debt Instrument [Line Items]
Amount Due	$ 28.3	33.3
Maturity date	2025-08
SOFR | MidCap Credit Facility
Debt Instrument [Line Items]
Annual interest rate	6.25%
Interest rate floor	1.00%
Interest rate cap	8.25%
The Mann Group L L C | Convertible Promissory Note
Debt Instrument [Line Items]
Amount Due	$ 8.8	$ 8.8
Annual interest rate	2.50%
Maturity date	2025-12
Conversion price	$ 2.5

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