Benefit Plans Benefit Plans - Assumptions Used (Details)		12 Months Ended
	Jul. 31, 2013	Dec. 31, 2013 Pension Benefits [Member]	Dec. 31, 2012 Pension Benefits [Member]	Dec. 31, 2013 Other Benefits [Member]	Dec. 31, 2012 Other Benefits [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	5.06%	5.09%	4.21%	5.09%	4.21%
Rate of compensation increase			3.25%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate		4.21%	5.04%	4.21%	5.04%
Expected long-term return on plan assets		8.05%	8.25%
Rate of compensation increase		3.25%	3.25%