XML 79 R63.htm IDEA: XBRL DOCUMENT v3.6.0.2
Revolving Credit Facility and Bank Borrowings (Revolving Credit Facility) (Details)
12 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2016
CNY (¥)
Jun. 13, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 26, 2013
USD ($)
Line of Credit Facility [Line Items]            
Amount allowed for repurchase under Amendment           $ 350,000,000
Senior Revolving Credit Facility [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility [Line Items]            
Borrowing capacity on Revolving Credit Facility $ 80,000,000   $ 80,000,000.0 $ 75,000,000.0    
Amount allowed for repurchase under Amendment 50,000,000.0          
Maximum capital expenditures and commitments $ 50,000,000.0          
Minimum fixed charge coverage ratio 110.00% 110.00%        
Maximum leverage ratio 200.00%          
Average borrowings as a percentage of borrowing capacity, threshold (percent) 25.00%          
Fixed charge coverage ratio 1.98 1.98        
Leverage ratio 0.26 0.26        
Capital expenditures and commitments $ 23,900,000          
Outstanding borrowings under credit facility 0          
Available borrowing capacity 78,700,000       $ 73,700,000  
Senior Revolving Credit Facility [Member] | Letter of Credit [Member]            
Line of Credit Facility [Line Items]            
Outstanding letters of credit 1,300,000          
Asia Pacific Revolving Credit Facility [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility [Line Items]            
Borrowing capacity on Revolving Credit Facility 8,600,000 ¥ 60,000,000        
Current borrowing capacity on line of credit 5,800,000.0 ¥ 40,000,000.0        
Outstanding borrowings under credit facility $ 0       $ 0  
LIBOR [Member] | Asia Pacific Revolving Credit Facility [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility [Line Items]            
Margin on variable rate (percent) 2.10%          
People's Bank of China Lending Rate [Member] | Asia Pacific Revolving Credit Facility [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility [Line Items]            
Margin on variable rate (percent) 10.00%          
Maximum [Member] | Base Rate [Member] | Senior Revolving Credit Facility [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility [Line Items]            
Margin on variable rate (percent) 0.75%          
Maximum [Member] | LIBOR [Member] | Senior Revolving Credit Facility [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility [Line Items]            
Margin on variable rate (percent) 1.75%          
Minimum [Member] | Base Rate [Member] | Senior Revolving Credit Facility [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility [Line Items]            
Margin on variable rate (percent) 0.50%          
Minimum [Member] | LIBOR [Member] | Senior Revolving Credit Facility [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility [Line Items]            
Margin on variable rate (percent) 1.50%