XML 49 R67.htm IDEA: XBRL DOCUMENT v2.4.0.6
Pension and Employee Benefit Plans (Details 2)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Weighted-average assumptions used to determine net periodic benefit costs    
Discount rate 4.25% 5.25%
Expected return on assets 7.50% 7.50%
Compensation increase rate