Supplemental Consolidating Financial Information (Narrative) (Details)	Jun. 30, 2015
21C [Member]
Ownership percentage held	100.00%
Subsidiary Guarantors [Member]
Ownership percentage held by subsidiary	100.00%

The percentage of ownership of common stock or equity participation in the investee, accounted for under the equity method of accounting held by the subsidiary.

No definition available.

Name:	rtsx_EquityMethodInvestmentOwnershipPercentageHeldBySubsidiary
Namespace Prefix:	rtsx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant