The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Period Type:	duration

Land Use Rights, Net - Additional Information (Details) - CNY (¥) ¥ in Millions	1 Months Ended		12 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Dec. 31, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, cash consideration				¥ 1,000.0
Land use right period				30 years
First installment payment		¥ 516.0
Second installment payment	¥ 516.0
Amortization expense			¥ 34.4	¥ 31.5