Basis of Presentation and Significant Accounting Policies - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019
Accounting Policies [Abstract]
Purchases of property, plant, and equipment included in accounts payable	$ 6,545	$ 1,854	$ 7,095
Sales of property, plant, and equipment included in notes receivable	$ 1,950	$ 1,999	$ 1,957

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