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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	11 Months Ended	12 Months Ended
	Jan. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2021
Commitments And Contingencies Disclosure [Line Items]
Indemnity liability		$ 8.1	$ 10.0	$ 8.1
Total liability settlement and related to administrative fees		6.3	6.3	6.3
Total insurance recoverable asset		2.2	2.1	$ 2.2
Operating leases, rent expense, net	$ 0.5	5.3	5.9
Capital leased assets gross		5.0	11.2
Capital leased assets accumulated depreciation		$ 2.5	$ 6.0
Assets Held under Capital Leases [Member] | Maximum
Commitments And Contingencies Disclosure [Line Items]
Capital lease term		5 years
Assets Held under Capital Leases [Member] | Minimum
Commitments And Contingencies Disclosure [Line Items]
Capital lease term		3 years

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- Definition

Capital lease term.

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No definition available.

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Commitments And Contingencies Disclosure [Line Item]

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- Definition

Indemnity Liabilities

+ References

No definition available.

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- Definition

Total insurance recoverable asset

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- Definition

Total lability settlement and related to administrative fees

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- Definition

Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123406127&loc=d3e45014-112735

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- Definition

The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 55
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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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