Corporate Office Relocation (Schedule Of Restructuring Charges) (Details) (Home Office Relocation [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Employee severance, retention, and relocation costs [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring and relocation costs	$ 21,000
Employee severance, retention, and relocation costs [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring and relocation costs	26,000
Asset impairments [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring and relocation costs	355
Asset impairments [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring and relocation costs	500
Lease termination and other exit costs [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring and relocation costs	27,000
Lease termination and other exit costs [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Expected restructuring and relocation costs	$ 32,000