Segment Information-Textual (Details) $ in Millions	12 Months Ended
Mar. 31, 2019 USD ($) Segment
Segment Reporting Information [Line Items]
Number of reportable segments (segment)	3
Intersegment Sales \| $	$ 0
Number of Operating Segments Aggregated	0

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration