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v3.21.1

Borrowings - Schedule of Line of Credit Facility Debt and Key Terms (Detail) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2021 | Mar. 04, 2021 | Dec. 31, 2020 | Apr. 10, 2020
Debt Instrument [Line Items] |  |  |  |
Amount Due | $ 338.4 |  |  |
Senior Convertible Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amount Due | $ 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 | $ 50.0 |  | $ 50.0 |
Maturity date | 2024-08 |  |  |
MidCap Credit Facility | LIBOR |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Annual interest rate | 6.75% |  |  |
Interest rate floor | 2.00% |  |  |
5.75% 2024 Convertible Note |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amount Due |  |  | 5.0 |
Annual interest rate | 5.75% |  |  |
Maturity date | 2024-11 |  |  |
Conversion price | $ 3.00 |  |  |
PPP Loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amount Due | $ 4.9 |  | 4.9 |
Annual interest rate | 0.98% |  |  | 0.98%
Maturity date | 2022-04 |  |  |
Mann Group | Convertible Promissory Note |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amount Due | $ 18.4 |  | 28.0 |
Accrued interest paid-in-kind | $ 0.5 |  | 0.6 |
Annual interest rate | 7.00% |  |  |
Maturity date | 2024-11 |  |  |
Conversion price | $ 2.50 |  |  |
Mann Group | Non Convertible Promissory Note |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Amount Due | $ 35.1 |  | 35.1 |
Accrued interest paid-in-kind | $ 4.3 |  | $ 3.6 |
Annual interest rate | 7.00% |  |  |
Maturity date | 2024-11 |  |  |

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