Employee Benefit Plans (Employee Benefits Charged To Operating Expenses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Total employee benefits	$ 56,688	$ 58,224	$ 52,007
Payroll Taxes [Member]
Total employee benefits	21,705	21,247	20,703
Medical Plans [Member]
Total employee benefits	18,393	19,861	16,350
401K Plan [Member]
Total employee benefits	12,465	12,613	11,728
Pension Plans [Member]
Total employee benefits	1,627	2,441	994
Other [Member]
Total employee benefits	$ 2,498	$ 2,062	$ 2,232