Annual report pursuant to Section 13 and 15(d)

Segments (Details)

v2.4.0.6
Segments (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2010
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Selected financial information by reportable operating segment                      
Revenues $ 535,871 $ 640,013 $ 620,593 $ 483,136 $ 524,909 $ 560,235 $ 539,369 $ 516,631 $ 2,279,613 $ 2,141,144 $ 1,976,500
Adjusted EBITDA                 519,473 485,920 445,524
Capital Expenditures                 184,819 156,102 124,797
U.S. [Member]
                     
Selected financial information by reportable operating segment                      
Revenues                 1,593,667 1,584,281 1,558,736
Adjusted EBITDA                 371,212 363,345 361,685
Capital Expenditures                 79,510 70,474  
International [Member]
                     
Selected financial information by reportable operating segment                      
Revenues                 696,119 564,240 421,765
Adjusted EBITDA                 148,261 122,575 83,839
Capital Expenditures                 105,309 85,628  
Eliminations [Member]
                     
Selected financial information by reportable operating segment                      
Revenues                 $ (10,173) $ (7,377) $ (4,001)