v3.21.1

Leases - Operating Lease Maturities - Supplemental Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($) item	Mar. 31, 2020 USD ($) item
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases \| $	$ 0.3	$ 0.3
Weighted average items:
Weighted average remaining lease term (in years), Operating leases	2 years 6 months	2 years 6 months
Weighted average remaining lease term (in years), Finance leases	1 year 1 month 6 days	1 year 4 months 24 days
Weighted average discount rate - operating leases	3.90%	3.90%
Weighted average discount rate - finance leases	4.10%	4.10%
Number of lease transactions with related parties \| item	0	0

Number of lease transactions with related parties.

+ References

No definition available.

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- Definition

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+ References

No definition available.

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- Definition

Weighted average discount rate for finance lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
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- Definition

Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
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-Paragraph 4
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- References

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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
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-URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971

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