v2.4.0.8
Changes in Fair Value of Contingent Consideration Obligations (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Contingent Consideration Obligations [Roll Forward]              
Beginning balance $ 49,473 $ 88,037 $ 90,009 $ 82,382 $ 82,382 $ 2,000  
Contingent consideration liabilities recorded for business acquisitions 1,204   3,854 5,540 5,456 81,239 2,000
Payments     (38,349) (600) (3,100)    
Loss (gain) included in earnings 712 1,892 1,765 1,787 1,643 (1,408)  
Exchange rate effects 3,096 2,353 (2,794) 3,173 3,628 551  
Ending balance $ 54,485 $ 92,282 $ 54,485 $ 92,282 $ 90,009 $ 82,382 $ 2,000