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Components of Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Schedule of Intangible Assets Disclosure [Line Items]    
Goodwill, Gross $ 18,355 $ 5,085
Goodwill, Accumulated Impairment Loss      
Goodwill, Net 18,355 5,085
Indefinite-Lived Trade Names, Gross 18,364 18,364
Indefinite-Lived Trade Names, Accumulated Impairment Loss      
Indefinite-Lived Trade Names, Net 18,364 18,364
Intangible Assets, Gross (Including Goodwill) 126,909 68,342
Finite-Lived Intangible Assets, Accumulated Amortization (14,741) (13,193)
Intangible Assets, Net (Including Goodwill) 112,168 55,149
License
    
Schedule of Intangible Assets Disclosure [Line Items]    
Finite-Lived Intangible Assets, Gross 15,847 15,847
Finite-Lived Intangible Assets, Accumulated Amortization (7,665) (7,551)
Finite-Lived Intangible Assets, Net 8,182 8,296
Trade Names
    
Schedule of Intangible Assets Disclosure [Line Items]    
Finite-Lived Intangible Assets, Gross 22,709 10,056
Finite-Lived Intangible Assets, Accumulated Amortization (3,094) (2,677)
Finite-Lived Intangible Assets, Net 19,615 7,379
Customer Relationships
    
Schedule of Intangible Assets Disclosure [Line Items]    
Finite-Lived Intangible Assets, Gross 50,432 18,406
Finite-Lived Intangible Assets, Accumulated Amortization (3,705) (2,736)
Finite-Lived Intangible Assets, Net 46,727 15,670
Other Intangible Assets
    
Schedule of Intangible Assets Disclosure [Line Items]    
Finite-Lived Intangible Assets, Gross 1,202 584
Finite-Lived Intangible Assets, Accumulated Amortization (277) (229)
Finite-Lived Intangible Assets, Net $ 925 $ 355