XML 41 R27.htm IDEA: XBRL DOCUMENT v3.4.0.3
Long-Term Debt - Additional Information (Detail)
3 Months Ended
Mar. 31, 2016
USD ($)
Mar. 31, 2016
EUR (€)
Dec. 31, 2015
USD ($)
Aug. 31, 2015
USD ($)
Debt Instrument [Line Items]        
Maximum borrowing capacity $ 6,600,000 € 5,800,000 $ 6,300,000  
Amount outstanding under lines of credit $ 0      
Credit Agreement [Member] | Revolving Credit Facility [Member]        
Debt Instrument [Line Items]        
Debt instrument term (in years) 5 years      
Maximum borrowing capacity       $ 125,000,000
Amount outstanding under lines of credit $ 0      
Line of credit, leverage ratio       3.0
Line of credit, interest coverage ratio       300.00%