v2.4.0.6
Goodwill (Goodwill Rollforward) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Goodwill [Roll Forward]      
Beginning balance $ 213,576 $ 213,576 $ 213,576
Additions 481,353 0 0
Impairments 0 0 0
Ending balance $ 694,929 $ 213,576 $ 213,576