Pension and Other Post Retirement Benefit Plans - Schedule of Plan Assets by Category (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	100.00%	100.00%
Target Plan Asset Allocations	100.00%	100.00%
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	2.70%	1.30%
Target Plan Asset Allocations	2.00%	3.00%
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	62.20%	53.70%
Target Plan Asset Allocations	60.00%	51.00%
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	33.20%	43.00%
Target Plan Asset Allocations	36.00%	44.00%
Alternative investments
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	1.90%	2.00%
Target Plan Asset Allocations	2.00%	2.00%