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Prepaid Expenses and Other Current Assets (Details) - Schedule of prepaid expenses and other current assets ¥ in Thousands, $ in Thousands		Jun. 30, 2021 USD ($)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 CNY (¥)
Schedule of prepaid expenses and other current assets [Abstract]
Advances to suppliers(i)	[1]	$ 79,971	¥ 63,513	$ 63,513	¥ 41,890
Prepaid VAT		50,077	53,399	53,399	48,175
Prepaid operating expenses and deposits		33,097		22,406
Others		15,322	¥ 23,215	24,083	¥ 19,493
Total		$ 178,467		$ 163,401
[1] Advances to suppliers mainly includes prepaid advertising costs, occupancy maintenance and facilities management expenses, as well as prepayment to construction and design suppliers.

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Amount of current assets classified as other.

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Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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