Comprehensive Income (Loss) (Components Of Accumulated Other Comprehensive Income (Loss), Net Of Tax, In The Consolidated Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Comprehensive Income (Loss) [Abstract]
Beginning balance of URA (D) on securities	$ 157,163	$ 147,140
Current period change in URA (D) of investments - temporary	(101,447)	10,177
Current period change in URA (D) of investments - non-credit OTTI	259	154
Ending balance of URA (D) on securities	55,457	157,163	147,140
Beginning balance of foreign currency translation adjustments	90,215	83,185
Current period change in foreign currency translation adjustments	(19,128)	7,030
Ending balance of foreign currency translation adjustments	71,087	90,215	83,185
Beginning balance of benefit plan net gain (loss)	(62,511)	(55,535)
Current period change in benefit plan net gain (loss)	23,615	(6,976)	(29,452)
Ending balance of benefit plan net gain (loss)	(38,896)	(62,511)	(55,535)
Ending balance of accumulated other comprehensive income (loss)	$ 87,648	$ 184,867