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Significant Accounting Policies - Schedule of Activity in Allowance for Credit Losses Related to Accounts and Notes Receivable and Other Receivables from Related Parties (Detail) - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Balance	¥ 9,316	¥ 4,832
Expected credit loss	29,343	5,015
Reversals	(3,802)	(531)
Balance	¥ 34,857	¥ 9,316

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.