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Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Maturities of Marketable Securities Available-for-Sale (Detail) $ in Thousands | Mar. 31, 2020 USD ($)
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Amortized Cost |
Mature in one year or less | $ 79,250
Mature after one year through two years | 12,021
Total amortized cost | 91,271
Estimated Fair Value |
Mature in one year or less | 79,547
Mature after one year through two years | 12,087
Total estimated fair value | $ 91,634

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