Cash Flows (Summary Of Non-Cash Activities And Other Supplemental Data) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Noncash Investing and Financing Items [Abstract]
Increase in capital lease obligations and related assets	$ 0	$ 865
Capital expenditures incurred but not yet paid	1,018	815
Cash interest paid — continuing operations	35,997	34,561
Income taxes paid, net — continuing operations	$ 2,834	$ 83,030