Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Fair Value (Details)

v3.8.0.1
Summary of Significant Accounting Policies - Fair Value (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Jul. 15, 2016
Assets:            
Other assets $ 4,840   $ 4,840 $ 3,458    
Total Assets 4,840   4,840 3,458    
Liabilities:            
Long term debt 312,384   312,384 315,940    
Interest rate swaps 2,178   2,178 1,985    
Total Liabilities 318,191   318,191 328,934    
Reconciliation of liability related to earnout            
Balance at the beginning of the period     10,373      
Additions       10,200    
Adjustments to fair value (600) $ (1,186) (1,786) 173    
Balance at the end of the period       10,373    
Advertising expenses            
Advertising expenses incurred     4,471 4,269 $ 4,511  
Research and development expenses            
Research and development expenses     2,926 3,132 2,950  
Henderson            
Liabilities:            
Earnout 529   529 636    
Dejana            
Liabilities:            
Earnout 3,100   3,100 10,373   $ 10,200
Level 3 | Henderson            
Liabilities:            
Earnout, portion in other current liabilities 87   87 194    
Earnout, portion in other long term liabilities 442   442 442    
Level 3 | Dejana            
Liabilities:            
Earnout, portion in other current liabilities       5,487    
Earnout, portion in other long term liabilities       4,886    
Recurring | Level 2            
Reconciliation of liability related to earnout            
Derivative Liability, Current 597   597 335    
Derivative Asset, Noncurrent 1,581   1,581      
Derivative Liability, Noncurrent       1,650    
Recurring | Level 3 | Henderson            
Reconciliation of liability related to earnout            
Balance at the beginning of the period     636 761    
Payments to former owners     (107) (125)    
Balance at the end of the period 529   529 636 $ 761  
Recurring | Level 3 | Dejana            
Reconciliation of liability related to earnout            
Balance at the beginning of the period     10,373      
Adjustments to fair value     (1,786)      
Payments to former owners     (5,487)      
Balance at the end of the period $ 3,100   $ 3,100 10,373    
Fleet Pride Inc,            
Related Party Transactions            
Related Party Transaction, Purchases from Related Party       $ 242