Employee Benefit Plans (Weighted-Average Assumptions Used To Determine Benefit Obligation) (Details)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Employee Benefit Plans [Abstract]
Discount rate	9.30% p.a.	8.75% p.a.
Long-term rate of compensation increase	11% p.a. for first year & 9% for next two years &7% p.a. thereafter	11% p.a. for first year & 9% for next two years &7% p.a. thereafter