XML 25 R32.htm IDEA: XBRL DOCUMENT v2.4.0.6
Amortizable Intangible Assets (Schedule Of Amortizable Intangible Assets) (Details) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value $ 1,001,965,000 $ 901,843,000
Accumulated Amortization (420,698,000) (405,661,000)
Net Carrying Value 581,267,000 496,182,000
Amortization expense estimated, year one (2012) 62,872,000  
Amortization expense estimated, year two (2013) 62,132,000  
Amortization expense estimated, year three (2014) 60,977,000  
Amortization expense estimated, year four (2015) 59,644,000  
Amortization expense estimated, year five (2016) 55,059,000  
Purchased Customer Accounts [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 976,531,000 876,552,000
Accumulated Amortization (396,514,000) (381,615,000)
Net Carrying Value 580,017,000 494,937,000
Weighted Average Life (years) 14.9 14.9
Non-Compete Agreements [Member]
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 25,434,000 25,291,000
Accumulated Amortization (24,184,000) (24,046,000)
Net Carrying Value $ 1,250,000 $ 1,245,000
Weighted Average Life (years) 7.2 7.2