Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Fair Value Liability Reconciliation (Details)

v3.10.0.1
Fair Value - Fair Value Liability Reconciliation (Details) - Recurring - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Henderson          
Fair value liability reconciliation          
Derivative Liability, Current   $ 138   $ 138  
Derivative Liability, Noncurrent   442   442  
Dejana          
Fair value liability reconciliation          
Derivative Liability, Current   3,397   3,397  
Derivative Liability, Noncurrent   1,489   1,489  
Level 2          
Fair value liability reconciliation          
Derivative Liability, Current $ 262   $ 262   $ 597
Derivative Liability, Noncurrent 259   259   $ 1,581
Level 3 | Henderson          
Reconciliation of liability related to earnout          
Balance at the beginning of the period 475 607 529 636  
Payments to former owners (31) (27) (85) (56)  
Balance at the end of the period 444 580 444 580  
Earnout, portion in other current liabilities 244   244    
Earnout, portion in other long term liabilities 200   200    
Level 3 | Dejana          
Reconciliation of liability related to earnout          
Balance at the beginning of the period 3,100 4,886 3,100 10,373  
Payments to former owners       (5,487)  
Balance at the end of the period 3,100 $ 4,886 3,100 $ 4,886  
Earnout, portion in other long term liabilities $ 3,100   $ 3,100