Acquisition and Investment - Additional Information - PM Group Acquisition - Contingent Liability (Detail)
$ in Thousands
Jan. 15, 2015
EUR (€)
Dec. 31, 2015
USD ($)
Jan. 15, 2015
USD ($)
Jan. 15, 2015
EUR (€)
Business Acquisition Contingent Consideration [Line Items]        
Debt instrument, face amount | $   $ 22,500    
PM Group [Member]        
Business Acquisition Contingent Consideration [Line Items]        
Debt instrument, face amount       € 5,000,000
Fair value of the contingent liability     $ 1,270 1,093,000
PM Group [Member] | Weighted average payment determined through Monte Carlo simulation analysis        
Business Acquisition Contingent Consideration [Line Items]        
Fair value of the contingent consideration     $ 1,270 1,093,000
PM Group [Member] | FY 2017 Criteria One [Member]        
Business Acquisition Contingent Consideration [Line Items]        
Fair value of the contingent consideration       2,500,000
PM Group [Member] | FY 2017 Criteria One [Member] | Minimum [Member]        
Business Acquisition Contingent Consideration [Line Items]        
Earnings before interest, taxes, depreciation and amortization € 14,500,000      
PM Group [Member] | FY 2017 Criteria One [Member] | Maximum [Member]        
Business Acquisition Contingent Consideration [Line Items]        
Earnings before interest, taxes, depreciation and amortization 16,500,000      
PM Group [Member] | FY 2017 Criteria Two [Member]        
Business Acquisition Contingent Consideration [Line Items]        
Fair value of the contingent consideration       5,000,000
PM Group [Member] | FY 2017 Criteria Two [Member] | Minimum [Member]        
Business Acquisition Contingent Consideration [Line Items]        
Earnings before interest, taxes, depreciation and amortization 16,500,000      
PM Group [Member] | FY 2017 Criteria Three [Member]        
Business Acquisition Contingent Consideration [Line Items]        
Fair value of the contingent consideration       € 1
PM Group [Member] | FY 2017 Criteria Three [Member] | Maximum [Member]        
Business Acquisition Contingent Consideration [Line Items]        
Earnings before interest, taxes, depreciation and amortization € 14,500,000