Employee Benefit Plans (Changes in Benefit Obligation, Fair Value of Assets and Funded Status) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Change in plan assets:
Beginning balance	$ 7,884
Ending balance	6,771	$ 7,884
Amounts recognized in Accumulated Other Comprehensive Loss:
Total	3,228	3,843	$ 3,483	$ 6,238
Pension benefits
Change in benefit obligation:
Beginning balance	13,695	14,723
Interest cost	447	509	543
Plan participants’ contributions	0	0
Actuarial (gain) loss	(948)	2,060
Benefit payments	(148)	(163)
Settlements	(1,081)	(3,434)
Ending balance	11,965	13,695	14,723
Accumulated benefit obligation at December 31	11,965	13,695
Change in plan assets:
Beginning balance	8,259	11,287
Actual return on plan assets	(91)	569
Employer contributions	185	0
Plan participants’ contributions	0	0
Benefit payments	(148)	(163)
Settlements	(1,081)	(3,434)
Ending balance	7,124	8,259	11,287
Funded status at December 31	(4,841)	(5,436)
Amounts recognized in Consolidated Balance Sheets:
Accrued benefit liability	(4,841)	(5,436)
Net amount recognized	(4,841)	(5,436)
Amounts recognized in Accumulated Other Comprehensive Loss:
Unrecognized prior service cost	0	0
Unrecognized net loss	3,275	3,886
Total	$ 3,275	$ 3,886
Discount Rate	3.90%	3.50%
Other Postretirement Benefit Plans, Defined Benefit [Member]
Change in benefit obligation:
Beginning balance	$ 152	$ 143
Interest cost	4	6	5
Plan participants’ contributions	65	46
Actuarial (gain) loss	(10)	26
Benefit payments	(85)	(69)
Settlements	0	0
Ending balance	126	152	143
Accumulated benefit obligation at December 31	0	0
Change in plan assets:
Beginning balance	0	0
Actual return on plan assets	0	0
Employer contributions	20	23
Plan participants’ contributions	65	46
Benefit payments	(85)	(69)
Settlements	0	0
Ending balance	0	0	$ 0
Funded status at December 31	(126)	(152)
Amounts recognized in Consolidated Balance Sheets:
Accrued benefit liability	(126)	(152)
Net amount recognized	(126)	(152)
Amounts recognized in Accumulated Other Comprehensive Loss:
Unrecognized prior service cost	(2)	(2)
Unrecognized net loss	(47)	(43)
Total	$ (49)	$ (45)
Discount Rate	3.90%	3.50%
Mutual funds - equity
Change in plan assets:
Beginning balance	$ 5,756
Ending balance	4,908	$ 5,756
Mutual funds - taxable income
Change in plan assets:
Beginning balance	2,128
Ending balance	1,863	2,128
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring Basis
Change in plan assets:
Beginning balance	7,884
Ending balance	6,771	7,884
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring Basis | Mutual funds - equity
Change in plan assets:
Beginning balance	5,756
Ending balance	4,908	5,756
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring Basis | Mutual funds - taxable income
Change in plan assets:
Beginning balance	2,128
Ending balance	1,863	2,128
Significant Other Observable Inputs (Level 2) | Recurring Basis
Change in plan assets:
Beginning balance	0
Ending balance	0	0
Significant Other Observable Inputs (Level 2) | Recurring Basis | Mutual funds - equity
Change in plan assets:
Beginning balance	0
Ending balance	0	0
Significant Other Observable Inputs (Level 2) | Recurring Basis | Mutual funds - taxable income
Change in plan assets:
Beginning balance	0
Ending balance	$ 0	$ 0