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Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Company's Employee Share Option Activity

The following table summarizes the Company’s employee share option activity under the share option plans:

		Number of options				Weighted average exercise price				Weighted average grant date fair value				Weighted average remaining contractual term				Aggregate intrinsic value
Outstanding, January 1, 2021			511,790				63.83				41.10				7.54				18,910
Granted			385,120				47.06				23.00
Exercised			(123,811	)			45.35
Forfeited			(230,271	)			79.60
Outstanding, December 31, 2021			542,828				51.33				25.80				8.88				206
Vested and expected to vest at December 31, 2021			517,519				49.68				25.98				8.87				206
Exercisable as of December 31, 2021			104,324				50.03				35.69				6.76				206

Schedule of Restricted Shares Activity

Restricted shares activity for the year ended December 31, 2021 was as follows:

		Number of shares				Weighted average grant date fair value
Outstanding, January 1, 2021			853,331				79.88
Granted			1,028,741				50.79
Vested			(348,696	)			74.17
Forfeited			(243,217	)			79.67
Outstanding, December 31, 2021			1,290,159				55.34
Expected to vest, December 31, 2021			1,011,422				54.83

Schedule of Estimated Fair Value of Share-Based Awards on Respective Grant Dates using Binomial Option Pricing Model

The Company calculated the estimated fair value of the share-based awards on the respective grant dates using the binomial option pricing model with the following assumptions:

		2019				2020				2021
Fair value of ordinary share		US$	87.39			US$	77.32-US$94.46			US$	31.06-US$119.82
Risk-free interest rates			1.96%				0.62%-1.92%				1.09%-1.62%
Expected exercise multiple			2.2				2.2-2.8				2.2-2.8
Expected volatility			53%				52%-53%				51%-52%
Expected dividend yield			0.00%				1.00%				1.00%
Weighted average fair value per option granted		US$	45.26			US$ US$	30.00 -   44.69			US$	10.51-US$60.83

Schedule of Share-Based Compensation Expenses

Share-based compensation expenses relating to options and restricted shares granted to employees recognized for the years ended December 31, 2019, 2020 and 2021 is as follows:

		Year ended December 31,
		2019				2020				2021
		RMB				RMB				RMB				US$
Cost of revenues			15,508				21,372				23,142				3,631
Sales and marketing expenses			46,081				40,103				46,823				7,348
General and administrative expenses			62,884				55,868				48,803				7,658
Product development expenses			79,535				93,863				87,292				13,698
			204,008				211,206				206,060				32,335

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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