| Recent Transactions - Debt Transactions - Additional Information (Detail) $ in Thousands | 3 Months Ended | 
|---|---|
| Mar. 31, 2020  USD ($) | |
| Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | |
| Principal repurchased | $ 3,500 | 
| Cash paid | 3,400 | 
| Net gain | $ 49,000 | 
| Debt instrument, interest rate | 6.75% | 
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- References No definition available. 
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- Definition The average effective interest rate during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Fair value amount of debt instrument that was repurchased. No definition available. 
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- Definition Amount of gain (loss) from the difference between the repurchase price of a debt instrument initially issued by the entity and the net carrying amount of the debt at the time of its repurchase. No definition available. 
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- Definition The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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