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Earnings Per Share (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Basic earnings per share:                      
Net income attributable to Republic Services, Inc. $ 127,000 $ 152,700 $ 149,200 $ 142,900 $ 191,000 $ 193,500 $ 46,500 $ 158,200 $ 571,800 $ 589,200 $ 506,500
Weighted average common shares outstanding (in shares)                 366,883 375,961 382,985
Basic earnings per share (in dollars per share)                 $ 1.56 $ 1.57 $ 1.32
Diluted earnings per share:                      
Net income attributable to Republic Services, Inc. $ 127,000 $ 152,700 $ 149,200 $ 142,900 $ 191,000 $ 193,500 $ 46,500 $ 158,200 $ 571,800 $ 589,200 $ 506,500
Weighted average common shares outstanding (in shares)                 366,883 375,961 382,985
Effect of dilutive securities:                      
Options to purchase common stock (in shares)                 1,008 1,495 1,895
Unvested restricted stock awards (in shares)                 129 149 231
Weighted average common and common equivalent shares outstanding (in shares)                 368,020 377,605 385,111
Diluted earnings per share (in dollars per share) $ 0.35 $ 0.42 $ 0.40 $ 0.38 $ 0.51 $ 0.52 $ 0.12 $ 0.41 $ 1.55 $ 1.56 $ 1.32
Options to purchase common stock [Member]
                     
Antidilutive securities not included in the diluted earnings per share calculations:                      
Options to purchase common stock (in shares)                 7,876 4,546 2,825