Long-Term Debt (Schedule Of Long-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2012 9.25% Series B Senior Notes Due 2017 [Member]	Jun. 30, 2012 9.25% Series A Senior Notes Due 2017 [Member]	Mar. 31, 2012 7.625% Series B Senior Subordinated Notes	Mar. 31, 2012 7.625% Series A Senior Subordinated Notes	Jun. 30, 2012 Senior Notes [Member] 9.25% Series B Senior Notes Due 2017 [Member]	Dec. 31, 2011 Senior Notes [Member] 9.25% Series B Senior Notes Due 2017 [Member]	Jun. 30, 2012 Senior Notes [Member] 9.25% Series A Senior Notes Due 2017 [Member]	Dec. 31, 2011 Senior Notes [Member] 9.25% Series A Senior Notes Due 2017 [Member]	Jun. 30, 2012 Senior Subordinated Notes [Member] 7.625% Series B Senior Subordinated Notes	Dec. 31, 2011 Senior Subordinated Notes [Member] 7.625% Series B Senior Subordinated Notes	Jun. 30, 2012 Senior Subordinated Notes [Member] 7.625% Series A Senior Subordinated Notes	Dec. 31, 2011 Senior Subordinated Notes [Member] 7.625% Series A Senior Subordinated Notes	Jun. 30, 2012 Other debt	Dec. 31, 2011 Other debt
Debt Instrument [Line Items]
Total debt	$ 4,742,236	$ 2,545,909					$ 2,000,000	$ 2,000,000	$ 500,000	$ 500,000	$ 1,925,000	$ 0	$ 275,000	$ 0	$ 42,236	$ 45,909
Less: current portion	(23,051)	(23,806)
Long-term debt	$ 4,719,185	$ 2,522,103
Stated interest rate			9.25%	9.25%	7.625%	7.625%
Maturity date			2017	2017	2020	2020