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Components of Intangible Assets (Detail) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Schedule of Intangible Assets Disclosure [Line Items]    
Goodwill, Gross $ 18,101 $ 18,101
Goodwill, Accumulated Amortization 0 0
Goodwill, Net 18,101 18,101
Indefinite-Lived Trade Names, Gross 7,616 7,616
Indefinite-Lived Trade Names, Accumulated Amortization 0 0
Indefinite-Lived Trade Names, Net 7,616 7,616
Intangible Assets, Gross (Including Goodwill) 123,617 123,313
Finite-Lived Intangible Assets, Accumulated Amortization (30,220) (26,720)
Intangible Assets, Net (Including Goodwill) 93,397 96,593
License    
Schedule of Intangible Assets Disclosure [Line Items]    
Finite-Lived Intangible Assets, Gross 15,847 15,847
Finite-Lived Intangible Assets, Accumulated Amortization (8,689) (8,462)
Finite-Lived Intangible Assets, Net 7,158 7,385
Trade Names    
Schedule of Intangible Assets Disclosure [Line Items]    
Finite-Lived Intangible Assets, Gross 29,864 29,724
Finite-Lived Intangible Assets, Accumulated Amortization (7,962) (6,818)
Finite-Lived Intangible Assets, Net 21,902 22,906
Customer Relationships    
Schedule of Intangible Assets Disclosure [Line Items]    
Finite-Lived Intangible Assets, Gross 50,922 50,823
Finite-Lived Intangible Assets, Accumulated Amortization (12,832) (10,806)
Finite-Lived Intangible Assets, Net 38,090 40,017
Other    
Schedule of Intangible Assets Disclosure [Line Items]    
Finite-Lived Intangible Assets, Gross 1,267 1,202
Finite-Lived Intangible Assets, Accumulated Amortization (737) (634)
Finite-Lived Intangible Assets, Net $ 530 $ 568