Pension (Amounts Recognized in Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Non-current asset	$ 848	$ 33,615
Current liability	1,488	3,161
Long-term liability	56,462	40,033
Defined Benefit Pension Plans and SERP
Defined Benefit Plan Disclosure [Line Items]
Non-current asset	848	33,615
Current liability	1,488	3,161
Long-term liability	56,462	40,033
Net accrued benefit liability	$ (57,102)	$ (9,579)