Management's Statement (Details)	Sep. 30, 2018 USD ($)
Accounting Standards Update 2014-09
Disaggregation of Revenue [Line Items]
Amount of cumulative adoption adjustment to the opening balance of Retained Earnings	$ 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.

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