Pension and other Post-Employment Benefit Plans Pension and other Post-Employment Benefit Plans (Details Textual) (Details) (USD $)	3 Months Ended	12 Months Ended		12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2013 Defined Benefit Postretirement Health Coverage [Member]	Dec. 31, 2014 Scenario, Forecast [Member] Defined Benefit Postretirement Health Coverage [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax			$ 7,400,000
Defined Benefit Plan, Plan Amendments	142,000	11,600,000
Deferred Tax Liabilities, Net			4,200,000
Postemployment Benefits, Period Expense				$ 2,100,000