Retirement Agreements And Other Postretirement Benefits (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]
Service cost - benefits earned during the year	$ 3,667	$ 3,946
Interest cost on the projected benefit obligation	7,618	7,103
(Accretion) amortization of unrecognized prior service cost	554	(380)
Amortization of unrecognized losses	0	1,573
Net periodic benefits costs	11,839	12,242
Employee benefits and other payments	$ 6,852,000		$ 6,580,000