Commitments and Contingencies - Letters of Credit (Details) $ in Millions	Sep. 30, 2020 USD ($) letter	Dec. 31, 2019 USD ($) letter
Commitments and Contingencies Disclosure [Abstract]
Letters of credit held \| letter	3	3
Letters of credit outstanding \| $	$ 1.0	$ 0.8

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant