Accounting Pronouncements (Details)	Jun. 30, 2017 USD ($)
New Accounting Pronouncements, Retrospective adjustments
Prior period adjustments due to new accounting principle	$ 0
Cumulative effect adjustment to opening retained earnings, after tax	$ 0

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant