Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	4 Months Ended	5 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2019	Jun. 02, 2019	Sep. 30, 2020
Commitments And Contingencies Disclosure [Abstract]
Operating leases, rent expense	$ 0.6	$ 0.4	$ 0.5	$ 0.9	$ 1.6

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.

No definition available.

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