Pension, Profit Sharing, and Other Employee Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Disclosure Net Periodic Benefit Cost [Abstract]
Interest cost on projected benefit obligation	$ 403	$ 390	$ 1,197	$ 1,163
Expected return on plan assets	(493)	(425)	(1,480)	(1,259)
Recognized net actuarial loss	67	249	183	1,176
Net periodic benefit cost	$ (23)	$ 214	$ (100)	$ 1,080