Employee Benefit Plans (Schedule of Assumptions Used) (Details)	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Sep. 30, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Pension Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	4.14%	4.23%	5.05%	5.08%	4.13%	4.15%
Rate of compensation increase								3.39%
Expected return on plan assets						7.00%	7.75%	7.75%
Other Postretirement Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate			4.58%		3.64%	3.91%	4.58%