Employee Benefit Plans (Schedule of Assumptions used to Determine Net Pension Cost) (Details)	12 Months Ended
	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Weighted average discount rate	4.50%		4.00%		5.00%
Rate of increase in compensation levels		[1]		[1]	3.75%
Expected long-term rate of return on assets	6.75%		6.75%		6.75%

[1] 6.0% graded down to 3.25% over the first seven years of service