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Intangible Assets, Net - Net Consolidated Balance of Amortizable Intangible Assets (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 30,756  
Accumulated Amortization (20,960)  
Total amortizable intangible assets $ 9,796 $ 10,803
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Useful Life (In Years) 10 years  
Gross Carrying Amount $ 25,002  
Accumulated Amortization (15,210)  
Total amortizable intangible assets $ 9,792  
Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Useful Life (In Years) 6 years  
Gross Carrying Amount $ 5,754  
Accumulated Amortization (5,750)  
Total amortizable intangible assets $ 4  
Minimum    
Finite-Lived Intangible Assets [Line Items]    
Useful Life (In Years) 2 years  
Maximum    
Finite-Lived Intangible Assets [Line Items]    
Useful Life (In Years) 10 years