Basis of Presentation - Narrative (Details) - Service Life $ in Millions	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2021 USD ($) property	Sep. 30, 2021 property	Sep. 30, 2021 USD ($) property	Dec. 31, 2020
Schedule Of Basis Of Presentation [Line Items]
Number of properties that changed estimated useful lives \| property	7	7	7
Property, plant, and equipment, estimated useful life		12 years		35 years
Depreciation \| $	$ 3.3		$ 6.5

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Name:	us-gaap_Depreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration