Employee Benefit Plans (Details 10)	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	100.00%	100.00%
U.S. equity [Member]
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	28.30%	37.80%
International equity [Member]
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	17.10%	26.70%
Fixed income [Member]
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	52.60%	33.80%
Money market
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	2.00%	1.70%