Intangible Assets (Details) - USD ($) |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 15, 2020 |
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| Goodwill And Intangible Assets Disclosure [Abstract] | |||||||
| Impairments of intangible assets | $ 0 | $ 0 | $ 0 | $ 0 | |||
| Amortization expense | $ 5,714,000 | 5,714,000 | $ 300,000 | $ 0 | $ 0 | ||
| Amortization of lease acquisition cost | 3,000 | 18,000 | |||||
| Amortization expense | $ 1,807,000 | $ 0 | $ 5,431,000 | $ 0 | |||
| X | ||||||||||
- Definition Amortization of lease acquisition costs. No definition available.
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| X | ||||||||||
- Definition 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
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| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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