Leases - Operating Lease Costs (Details) - USD ($) |
9 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Leases | |||||
| Operating Lease Costs | $ 1,740,067 | $ 1,218,383 | $ 2,018,210 | $ 1,592,665 | $ 697,830 |
| New Assets Obtained in Exchange for Operating Lease Liabilities | $ 4,104,760 | $ 847,445 | $ 882,029 | $ 478,815 | |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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