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Intangible and Other Assets (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Summary of intangible and other assets    
Deferred debt issuance costs, net $ 18,348 $ 24,581
Intangible assets, net 84,993 134,967
Deferred taxes 31,102 21,779
Other 40,405 41,524
Intangible and other assets, net $ 174,848 $ 222,851