Employee Benefit Plans (Schedule of Amounts Recognized on the Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Employee Benefit Plans [Abstract]
Accrued benefit liability	$ 509	$ (19,626)
Accumulated other comprehensive loss, net of tax	19,379	29,620
Deferred tax asset	10,905	17,396
Nat amount recognized	$ 30,793	$ 27,390