Employee Benefit Plans (Schedule of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]
Service cost	$ 321	$ 252	$ 643	$ 504
Interest cost	476	450	952	900
Expected return on plan assets	(797)	(740)	(1,569)	(1,480)
Recognized loss	360	96	720	192
Total	$ 360	$ 58	$ 746	$ 116