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Goodwill and Other Intangible Assets (Schedule of Other Intangible Assets) (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Customer and Vendor Agreements [Member]
Dec. 31, 2011
Customer and Vendor Agreements [Member]
Dec. 31, 2012
Customer and Vendor Agreements [Member]
Minimum [Member]
Dec. 31, 2012
Customer and Vendor Agreements [Member]
Maximum [Member]
Dec. 31, 2012
Trade Names and Trademarks-Indefinite Lived [Member]
Dec. 31, 2011
Trade Names and Trademarks-Indefinite Lived [Member]
Dec. 31, 2012
Trade Names and Trademarks-Indefinite Lived [Member]
Minimum [Member]
Dec. 31, 2012
Trade Names and Trademarks-Indefinite Lived [Member]
Maximum [Member]
Dec. 31, 2012
Trade Names and Trademarks-Other [Member]
Dec. 31, 2011
Trade Names and Trademarks-Other [Member]
Dec. 31, 2012
Trade Names and Trademarks-Other [Member]
Minimum [Member]
Dec. 31, 2012
Trade Names and Trademarks-Other [Member]
Maximum [Member]
Dec. 31, 2012
Software [Member]
Dec. 31, 2011
Software [Member]
Dec. 31, 2012
Software [Member]
Minimum [Member]
Dec. 31, 2012
Software [Member]
Maximum [Member]
Dec. 31, 2012
Non-compete [Member]
Dec. 31, 2011
Non-compete [Member]
Dec. 31, 2012
Non-compete [Member]
Minimum [Member]
Dec. 31, 2012
Non-compete [Member]
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]                                            
Useful Lives (Years)         5 years 20 years     0 years 0 years     3 years 15 years     3 years 10 years     2 years 6 years
Gross Carrying Amounts $ 563,405 $ 452,773 $ 487,718 $ 404,586     $ 53,926 $ 37,026     $ 3,160 $ 3,160     $ 15,330 $ 5,530     $ 3,271 $ 2,471    
Accumulated Amortization (99,541) (67,166) (90,920) (61,110)             (1,420) (1,200)     (5,208) (3,383)     (1,993) (1,473)    
Net Carrying Amount $ 463,864 $ 385,607 $ 396,798 $ 343,476     $ 53,926 $ 37,026     $ 1,740 $ 1,960     $ 10,122 $ 2,147     $ 1,278 $ 998