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Long-Term Debt (Components Of Long-Term Debt) (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Other debt due through 2025 $ 23,078 $ 20,156
Capitalized lease arrangements due through 2026 15,083 15,206
Long-term debt and capitalized lease arrangements 2,249,461 2,251,012
Less current portion 19,778 18,826
Long-term debt 2,229,683 2,232,186
Term Loan [Member]    
Debt Instrument [Line Items]    
Long-term Debt 861,300 865,650
5.625% Senior Unsecured Notes due 2020 [Member] | Senior Notes [Member]    
Debt Instrument [Line Items]    
Long-term Debt 250,000 250,000
5.625% Senior Unsecured Notes due 2022 [Member] | Senior Notes [Member]    
Debt Instrument [Line Items]    
Long-term Debt $ 1,100,000 $ 1,100,000