Significant Accounting Policies Significant Accounting Policies (Supplemental Cash Flow Information) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Supplemental Cash Flow Elements [Abstract]
Supplemental Assets Acquired Under Capital Leases	$ 0	$ 1,094,000	$ 8,570,000
Noncash or Part Noncash Acquisition, Fixed Assets Acquired	6,600,000
Other Noncash Income	$ 3,400,000