Significant Accounting Policies (Predecessor) (Details 3)	12 Months Ended	0 Months Ended
Mar. 31, 2015 item	Jul. 28, 2013 item
Segment reporting
Number of reportable segment	1us-gaap_NumberOfReportableSegments
Predecessor
Segment reporting
Number of reportable segment		1

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