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Significant Accounting Policies - Summary of Advertising Business Exceeding (Detail) - Accounts Receivable [Member] - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Customer A [Member]
Disclosure of Advertising and Promotional Service Providers [Line Items]
Concentration risk, percentage	87.30%	68.30%
Customer B [Member]
Disclosure of Advertising and Promotional Service Providers [Line Items]
Concentration risk, percentage	0.00%	21.50%

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- Definition

Disclosure of advertising and promotional service providers details

+ References

No definition available.

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- Definition

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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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