Subsequent Events (Details) - Government Contract - USD ($) $ in Millions	93 Months Ended	108 Months Ended
Mar. 31, 2019	Jun. 30, 2020	Sep. 30, 2020	Dec. 31, 2018
Subsequent Event [Line Items]
Estimated aggregate overcharge in contracts	$ 10.6	$ 11.2
Total estimated liability from price adjustment clauses			$ 13.1	$ 5.3

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration