SUBSEQUENT EVENTS: (Details) (Subsequent event, USD $) In Millions, unless otherwise specified	0 Months Ended
Jan. 02, 2013
Subsequent event
Subsequent events
Amount authorized for revolvement of unit retains for distribution	$ 26.2

Represents the amount authorized for revolvement of unit retains for distribution.

No definition available.

Name:	acsc_RevolvementOfUnitRetainsForDistributionAuthorizedAmount
Namespace Prefix:	acsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration