Commitments and Contingencies - Schedule of Future Minimum Lease Receivables under Non-Cancellable Operating Leases with Tenants (Details) - Dec. 31, 2021	CNY (¥)	USD ($)
Commitments And Contingencies Disclosure [Abstract]
2022	¥ 76,370,033	$ 11,984,125
2023	69,781,327	10,950,213
2024	63,727,168	10,000,183
2025	60,375,233	9,474,192
2026	55,245,491	8,669,223
Thereafter	226,933,574	35,610,830
Total	¥ 552,432,826	$ 86,688,766

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- Definition

Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123405975&loc=d3e41551-112718

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- Definition

Future rental payments receivable within one year of the balance sheet date under an operating lease.

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Future rental payments receivable within the fifth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the fourth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the third year from the balance sheet date under an operating lease.

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Future rental payments receivable within the second year from the balance sheet date under an operating lease.

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- Definition

Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

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