Quarterly report pursuant to Section 13 or 15(d)

Short Term Borrowings and Credit Lines (Details)

v3.19.2
Short Term Borrowings and Credit Lines (Details)
Jun. 30, 2019
USD ($)
Jun. 30, 2019
EUR (€)
Apr. 17, 2019
USD ($)
Mar. 31, 2019
USD ($)
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity | $     $ 50,000,000.0 $ 100,000,000.0
Minimum [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Interest Rate at Period End 87.50% 87.50%    
Maximum [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Interest Rate at Period End 162.50% 162.50%    
Unsecured And Uncommitted Credit Line1 [Member] | European Subsidiary [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity | €   € 25,800,000    
Line of Credit Facility, Interest Rate at Period End 75.00% 75.00%    
Unsecured And Uncommitted Credit Line2 [Member] | European Subsidiary [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity | €   € 5,000,000.0    
Unsecured And Uncommitted Line Of Credit [Member] | European Subsidiary [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity | $ $ 35,000,000.0