Cash Flows (Summary Of Non-Cash Activities And Other Supplemental Data) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Noncash Investing and Financing Items [Abstract]
Increase in capital lease obligations and related assets	$ 0	$ 19,036
Capital expenditures incurred but not yet paid	1,957	656
Cash interest paid — continuing operations	61,223	61,300
Income taxes paid, net — continuing operations	$ 99,177	$ 32,187