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Interim Financial Statements - Additional Information (Detail) - USD ($) | Oct. 06, 2020 | Dec. 11, 2019 | Sep. 30, 2020
--- | --- | --- | ---
Subsequent Event |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Repayments of debt | $ 700,000,000 |  |
Life Sciences | Subsequent Event |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Net proceeds | 757,200,000 |  |
Senior Secured Revolver |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Maximum borrowing capacity |  |  | $ 75,000,000.0
Senior Secured Revolver | Subsequent Event |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Maximum borrowing capacity | $ 60,000,000.0 |  |
Series B Convertible Preferred Stock |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Proceeds from issuance of preferred stock and preference stock |  | $ 95,700,000 |

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