XML 35 R44.htm IDEA: XBRL DOCUMENT v2.4.0.6
Statements of Cash Flow (Details) (USD $)
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Supplemental Cash Flow Information [Abstract]    
Interest payments $ 109,045,000 $ 100,840,000
Income taxes paid $ 114,343,000 $ 42,797,000