XML 26 R50.htm IDEA: XBRL DOCUMENT v2.4.0.6
Goodwill And Other Intangible Assets, Net (Changes In Goodwill) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Goodwill And Other Intangible Assets, Net [Abstract]    
Goodwill, beginning of year $ 717,052 $ 708,458
Acquisitions 10,823 8,594
Goodwill, end of year $ 727,875 $ 717,052