v2.4.0.6
Supplemental Financial Information (Narrative) (Details) (Senior Subordinated 8% Notes, Due December 1, 2015 [Member])
3 Months Ended
Mar. 31, 2012
Senior Subordinated 8% Notes, Due December 1, 2015 [Member]
 
Schedule Of Supplemental Financial Information [Line Items]  
Senior Subordinated Notes, interest rate 8.00%
Senior Subordinated Notes, maturity date December 1, 2015