XML 42 R61.htm IDEA: XBRL DOCUMENT v3.20.1
Investments (Narrative) (Details)
R$ in Thousands, $ in Thousands
3 Months Ended 64 Months Ended
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
May 15, 2017
Dec. 31, 2019
BRL (R$)
Dec. 31, 2019
USD ($)
Mar. 31, 2019
BRL (R$)
Mar. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
May 16, 2017
Schedule of Equity Method Investments [Line Items]                  
Income (loss) from equity method investments $ 457 $ 364              
Fair value and other adjustments 39 16              
Investment $ 28,024       $ 32,437        
MSIL                  
Schedule of Equity Method Investments [Line Items]                  
Equity method investment, ownership percentage 49.00%         49.00% 49.00%    
Equity method investments $ 12,346       12,701        
Income (loss) from equity method investments 457 $ 364              
Stoneridge Brazil [Member]                  
Schedule of Equity Method Investments [Line Items]                  
Percentage ownership in consolidated subsidiary     74.00%            
Percentage of additional noncontrolling interest acquired                 26.00%
Dividends Payable, Price Index Adjustment           R$ 261 $ 68    
Stoneridge Brazil [Member] | Noncontrolling interest                  
Schedule of Equity Method Investments [Line Items]                  
Dividends payable       R$ 24,154 6,010        
Autotech Ventures [Member] | Venture Capital Funds [Member]                  
Schedule of Equity Method Investments [Line Items]                  
Investment commitment         10,000     $ 10,000  
Investment $ 1,788       $ 1,827        
Contribution expected period (in years) 10 years                
Contribution by company $ 400