Fair Value of Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Fair Value Of Financial Instruments [Line Items]
Cash and cash equivalents	$ 62,522	$ 67,005	$ 63,222
Restricted cash		158	$ 316
Short-term investments	99,970
Long-term investments	38,950
Money Market Funds
Fair Value Of Financial Instruments [Line Items]
Cash and cash equivalents	62,500	67,000
Restricted cash	$ 0	$ 200

Fair value of financial instruments.

No definition available.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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- Definition

The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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- Definition

Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

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- Definition

Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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