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Borrowings - Narrative (Details) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 06, 2024 | Sep. 18, 2024 | Mar. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Oct. 21, 2024 | Mar. 29, 2024
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Gain on extinguishment of debt |  |  |  | $ 300,000 | $ 1,200,000 | $ 1,800,000 | $ 1,200,000 |  |
PMC Senior Secured Notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, repurchased amount |  | $ 23,500,000 |  |  |  |  |  |  | $ 47,400,000
Total repurchase open market price |  | 23,000,000.0 |  |  |  |  |  |  | $ 45,500,000
Gain on extinguishment of debt |  | $ 300,000 | $ 1,400,000 |  |  |  |  |  |
Senior Notes Due 2029 | Subsequent Event |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount | $ 500,000,000 |  |  |  |  |  |  |  |
Interest rate (as a percent) | 9.875% |  |  |  |  |  |  |  |
Redemption price, percentage of principal amount | 99.556% |  |  |  |  |  |  |  |
Senior Notes Due 2029 | Subsequent Event | Standard & Poor's, B- Rating |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  | $ 500,000,000 |
Senior Notes Due 2029 | Subsequent Event | Moody's, Caa1 Rating |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  | $ 500,000,000 |
Minimum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Covenant compliance, consolidated tangible net worth at period end |  |  |  | 300,000,000 |  | 300,000,000 |  |  |
Restrictive liquidity requirements |  |  |  | 75,000,000.0 |  | 75,000,000.0 |  |  |
Minimum | PMC Senior Secured Notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Covenant compliance, consolidated tangible net worth at period end |  |  |  | $ 275,000,000.0 |  | $ 275,000,000.0 |  |  |

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