Revenue From Contracts With Customers - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue From Contracts With Customers [Line Items]
Lease revenue	$ 1,285	$ 1,073	$ 3,536	$ 2,519
Accounts receivables payment terms			30 days
Interest income on notes receivable	8	$ 13	$ 27	$ 42
Revenue remaining performance obligation amount	$ 7,412		$ 7,412
Minimum
Revenue From Contracts With Customers [Line Items]
Notes receivable interest rate	5.00%		5.00%
Maximum
Revenue From Contracts With Customers [Line Items]
Notes receivable interest rate	5.75%		5.75%

Accounts receivables payment terms.

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- Definition

Notes receivable interest rate.

+ References

No definition available.

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- Definition

Revenue from contracts with customers.

+ References

No definition available.

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- Definition

Amount of interest income on financing receivable, from change in present value of expected cash flows, attributable to passage of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82919204-210446

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919246-210447

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- Definition

Amount of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=124258985&loc=SL77919372-209981

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045

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