Property and Equipment - Narrative (Details) $ in Millions	3 Months Ended
Dec. 31, 2018 USD ($)
Property, Plant and Equipment [Abstract]
Fully depreciated property, equipment, and leasehold improvements written off, gross book value	$ 0.1

Amount of divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

No definition available.

Name:	us-gaap_PropertyPlantAndEquipmentDisposals
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration