XML 13 R54.htm IDEA: XBRL DOCUMENT v2.4.0.6
Carrying Amount and Accumulated Amortization of Other Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 168,562 $ 52,419
Accumulated Amortization (43,010) (34,076)
Net Balance 125,552 18,343
Customer relationships
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 151,511 40,298
Accumulated Amortization (30,765) (23,392)
Net Balance 120,746 16,906
Purchased contracts
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 10,823 10,750
Accumulated Amortization (10,432) (10,023)
Net Balance 391 727
Trademarks and tradenames
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 5,785 1,291
Accumulated Amortization (1,655) (585)
Net Balance 4,130 706
Covenant not to compete
    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 443 80
Accumulated Amortization (158) (76)
Net Balance $ 285 $ 4