Other Financial Statement Disclosure (Defined Benefit Plans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Other Financial Statement Disclosures [Abstract]
Actuarial gains (losses)	$ (4,909)	$ (6,924)	$ (14,570)	$ (20,553)
Prior service costs	1,142	1,230	3,390	3,652
Total before tax	(3,767)	(5,694)	(11,180)	(16,901)
Tax (expense) benefit	1,314	1,993	3,899	5,915
Total reclassifications for the period, net of tax	$ (2,453)	$ (3,701)	$ (7,281)	$ (10,986)