Investments - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Schedule of Investments [Line Items]
Available-for-sale debt securities, allowance for credit losses	$ 0	$ 0
Purchase an available-for-sale debt securities with credit deterioration	0
Carrying value of investment	1,000,000.0		$ 1,000,000.0
Asset impairments	0	0	400,000
Cumulative asset impairment charges	2,400,000
Unsecured loan converted to equity investment			500,000
Secured Loans Receivable [Member]
Schedule of Investments [Line Items]
Asset impairments	0	$ 0	500,000
Long-term Investments [Member]
Schedule of Investments [Line Items]
Secured note receivable, noncurrent	$ 400,000		$ 400,000
Investment [Member] \| Issuer Concentration [Member] \| Market Value of Total Investment Portfolio [Member]
Schedule of Investments [Line Items]
Investment concentration risk percentage	5.00%

Cumulative asset impairment charges.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Amount, after allowance for credit loss, of financing receivable, classified as noncurrent.

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