Quarterly report pursuant to Section 13 or 15(d)

Short Term Borrowings and Credit Lines (Details)

v3.20.2
Short Term Borrowings and Credit Lines (Details)
9 Months Ended
Apr. 15, 2020
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2020
CAD ($)
Sep. 30, 2020
EUR (€)
Sep. 30, 2020
JPY (¥)
Jul. 10, 2020
USD ($)
Jul. 01, 2020
USD ($)
Jul. 01, 2020
JPY (¥)
Jun. 30, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2019
EUR (€)
Variable Commitments Revolving Credit Facility | Line of Credit | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity                   $ 50,000,000.0  
Revolving Credit Facility, First Amendment | Line of Credit | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity                 $ 125,000,000.0    
Revolving A Loan | Line of Credit | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity $ 125,000,000.0                    
Revolving B Loan | Line of Credit | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity 400,000,000.0                    
Line of credit facility, increase limit $ 100,000,000.0                    
Revolving Loans | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity           $ 350,000,000          
Revolving Loans | Minimum | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Debt instrument, covenant, liquidity requirement           $ 200,000,000.0          
Revolving Loans | Line of Credit | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
LIBOR floor interest rate           0.50%          
Revolving Loans | Line of Credit | London Interbank Offered Rate (LIBOR) | Minimum | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 2.00%                    
Revolving Loans | Line of Credit | London Interbank Offered Rate (LIBOR) | Maximum | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 2.75%                    
Revolving Loans | Line of Credit | Base Rate | Minimum | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 1.00%                    
Revolving Loans | Line of Credit | Base Rate | Maximum | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 1.75%                    
Revolving Loans | Line of Credit | Fed Funds Effective Rate Overnight Index Swap Rate | Revolving Credit Facility                      
Debt Instrument [Line Items]                      
Basis spread on variable rate 1.50%                    
Canadian Subsidiary | Unsecured And Uncommitted Line Of Credit | Line of Credit                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity   $ 22,400,000 $ 30,000,000.0                
Amount outstanding   $ 0                  
Canadian Subsidiary | Unsecured And Uncommitted Line Of Credit | Line of Credit | Bankers' Acceptance Rate                      
Debt Instrument [Line Items]                      
Basis spread on variable rate   1.50%                  
European Subsidiary | Unsecured And Uncommitted Line Of Credit | Line of Credit                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity | €       € 600,000              
Stated interest rate   0.75% 0.75% 0.75% 0.75%            
European Subsidiary | Unsecured And Uncommitted Credit Line1 | Line of Credit                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity | €       € 25,800,000             € 25,800,000
Stated interest rate   1.85% 1.85% 1.85% 1.85%            
European Subsidiary | Unsecured And Uncommitted Credit Line1 | Line of Credit | Base Rate                      
Debt Instrument [Line Items]                      
Basis spread on variable rate   2.75%                  
European Subsidiary | Unsecured And Uncommitted Credit Line2 | Line of Credit                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity | €                     € 5,000,000.0
European Subsidiary | Secured And Committed Credit Line | Line of Credit                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity | €       € 4,400,000              
Stated interest rate   0.75% 0.75% 0.75% 0.75%            
European Subsidiary | Unsecured And Uncommitted, Secured And Committed, Credit Lines | Line of Credit                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity | €       € 36,200,000              
Amount outstanding | €       € 0              
Japanese Subsidiary | Unsecured And Uncommitted Overdraft Facililty1 | Overdraft Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity             $ 7,000,000.0        
Amount outstanding   $ 0                  
Japanese Subsidiary | Unsecured And Uncommitted Overdraft Facility2 | Overdraft Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity | ¥         ¥ 1,500,000,000     ¥ 300,000,000.0      
Japanese Subsidiary | Unsecured And Uncommitted Overdraft Facility | Overdraft Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity   $ 21,200,000                  
Stated interest rate   2.75% 2.75% 2.75% 2.75%            
Japanese Subsidiary | Unsecured And Uncommitted Overdraft Facility | Overdraft Facility | Tokyo Interbank Offered Rate                      
Debt Instrument [Line Items]                      
Basis spread on variable rate   0.05%                  
Korean Subsidiary | Unsecured And Uncommitted Line Of Credit | Overdraft Facility | Korea Three Month CD Rate                      
Debt Instrument [Line Items]                      
Basis spread on variable rate   2.75%                  
Korean Subsidiary | Unsecured And Uncommitted Overdraft Facility | Overdraft Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity   $ 20,000,000.0                  
Amount outstanding   $ 0                  
China Subsidiary | Unsecured And Uncommitted Overdraft And Clean Advance Facility | Overdraft Facility | People's Bank Of China Base Rate                      
Debt Instrument [Line Items]                      
Basis spread on variable rate   10.00%                  
China Subsidiary | Unsecured And Uncommitted Overdraft And Clean Advance Facility | Overdraft And Clean Advance Facility                      
Debt Instrument [Line Items]                      
Maximum borrowing capacity   $ 20,000,000.0                  
Amount outstanding   0                  
Remaining borrowing capacity   $ 40,500,000                  
China Subsidiary | Unsecured And Uncommitted Overdraft And Clean Advance Facility | Overdraft And Clean Advance Facility | London Interbank Offered Rate (LIBOR)                      
Debt Instrument [Line Items]                      
Basis spread on variable rate   2.00%