Components of Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Intangible Assets Disclosure [Line Items]
Goodwill, Gross	$ 14,347	$ 14,201
Goodwill, Accumulated Amortization	0	0
Goodwill, Net	14,347	14,201
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)	119,997	119,452
Finite-Lived Intangible Assets, Accumulated Amortization	(31,928)	(30,233)
Intangible Assets, Net (Including Goodwill)	88,069	89,219
License
Schedule of Intangible Assets Disclosure [Line Items]
Finite-Lived Intangible Assets, Gross	15,847	15,847
Finite-Lived Intangible Assets, Accumulated Amortization	(9,035)	(8,919)
Finite-Lived Intangible Assets, Net	6,812	6,928
Trade Names
Schedule of Intangible Assets Disclosure [Line Items]
Finite-Lived Intangible Assets, Gross	31,295	31,150
Finite-Lived Intangible Assets, Accumulated Amortization	(8,932)	(8,286)
Finite-Lived Intangible Assets, Net	22,363	22,864
Customer Relationships
Schedule of Intangible Assets Disclosure [Line Items]
Finite-Lived Intangible Assets, Gross	49,757	49,372
Finite-Lived Intangible Assets, Accumulated Amortization	(13,226)	(12,188)
Finite-Lived Intangible Assets, Net	36,531	37,184
Other
Schedule of Intangible Assets Disclosure [Line Items]
Finite-Lived Intangible Assets, Gross	1,135	1,266
Finite-Lived Intangible Assets, Accumulated Amortization	(735)	(840)
Finite-Lived Intangible Assets, Net	$ 400	$ 426