Subsequent Events (Details) - Subsequent Event shares in Thousands, $ in Millions	Mar. 27, 2018 USD ($) shares
Subsequent Event [Line Items]
Shares approved for redemption (in shares) \| shares	112
Shares approved for redemption \| $	$ 0.6

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration