Significant Accounting Policies Disposition of Business (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Accounting Policies [Abstract]
charges relating to business disposition	$ 10,116,000	$ (7,680,000)	$ 38,902,000	$ (1,777,000)
Charges related to dispostion of business after tax	$ 9,400,000		$ 27,100,000