Financial Information for Subsidiary Guarantors and Non-Guarantor Subsidiaries under Select's 7 5/8% Senior Subordinated Notes (Details) (7 5/8% senior subordinated notes, Select)	Jun. 30, 2012	Dec. 31, 2011
7 5/8% senior subordinated notes | Select
Financial Information for Subsidiary Guarantors and Non-Guarantor Subsidiaries under Select's 7 5/8% Senior Subordinated Notes
Interest rate of debt (as a percent)	7.625%	7.625%