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

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-Publisher FASB
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-Topic 840
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-Section 45
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The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

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The total number of new claims filed pertaining to a loss contingency during the period.

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-SubTopic 20
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Commitments and Contingencies - Narrative (Details) $ in Millions	1 Months Ended	4 Months Ended	8 Months Ended	12 Months Ended
	Sep. 30, 2020 claim	Dec. 31, 2019 USD ($)	Sep. 12, 2019 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2018 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Assets acquired under capital leases				$ 0.8
Net book value of assets under capital leases				0.4
Rent expense		$ 2.0	$ 3.1	$ 6.7	$ 2.8
Pending litigation
Loss Contingencies [Line Items]
Number of securities class action complaints filed \| claim	3