v3.19.3
ACQUISITIONS - Narrative (Details)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
USD ($)
Nov. 30, 2018
USD ($)
facility
Sep. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
May 31, 2018
USD ($)
Apr. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
Feb. 28, 2018
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
acquisition
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Business Acquisition [Line Items]                          
Number of acquisitions | acquisition                     2    
Total sales                 $ 566,186,000 $ 575,139,000 $ 1,787,622,000 $ 1,731,850,000  
Operating Income                 37,410,000 44,709,000 118,465,000 139,522,000  
Fair value of estimated contingent consideration payments $ 12,000,000.0               12,000,000.0   12,000,000.0   $ 13,800,000
Contingent consideration arrangements maximum payments amount 17,200,000               17,200,000   17,200,000    
Cash payments related to contingent consideration liabilities                     4,416,000 0  
Decrease intangible asset adjustment                     14,647,000    
Increase in goodwill adjustment                     19,447,000    
Business acquisitions, net of cash acquired                     22,350,000 290,052,000  
Pro forma amortization expense                 200,000 700,000 500,000 5,700,000  
Acquired Entities                          
Business Acquisition [Line Items]                          
Total sales                   82,400,000   160,000,000.0  
Operating Income                   8,800,000   17,300,000  
G.G. Schmitt & Sons, Inc.                          
Business Acquisition [Line Items]                          
Fair value of estimated contingent consideration payments               $ 2,600,000          
Net initial purchase price 21,100,000                        
Metal Moulding Corporation                          
Business Acquisition [Line Items]                          
Fair value of estimated contingent consideration payments               1,400,000          
Net initial purchase price               $ 19,900,000          
Contingent consideration performance period               1 year          
Aluminum Metals Company                          
Business Acquisition [Line Items]                          
Net initial purchase price               $ 17,800,000          
Indiana Marine Products                          
Business Acquisition [Line Items]                          
Fair value of estimated contingent consideration payments             $ 7,900,000            
Net initial purchase price             $ 18,600,000            
Contingent consideration performance period             3 years            
Collins & Company                          
Business Acquisition [Line Items]                          
Net initial purchase price             $ 40,000,000.0            
Decrease intangible asset adjustment                     3,600,000    
Increase in goodwill adjustment                     3,600,000    
Dehco Inc                          
Business Acquisition [Line Items]                          
Net initial purchase price           $ 52,800,000              
Decrease intangible asset adjustment                     300,000    
Increase in goodwill adjustment                     300,000    
Dowco Inc.                          
Business Acquisition [Line Items]                          
Net initial purchase price         $ 56,300,000                
Decrease intangible asset adjustment                         (5,900,000)
Increase in property, plant and equipment                         2,700,000
Increase (decrease) in initial purchase price                         3,300,000
Increase to accounts payable adjustment                         0.1
Marine Accessories Corporation                          
Business Acquisition [Line Items]                          
Net initial purchase price       $ 57,000,000.0                  
Decrease intangible asset adjustment                         (6,500,000)
Increase in property, plant and equipment                         1,000,000.0
Increase (decrease) in initial purchase price                         6,400,000
Percentage of voting interests acquired       100.00%                  
Decrease in deferred taxes and other liabilities                         1,100,000
Engineered Metals and Composites                          
Business Acquisition [Line Items]                          
Fair value of estimated contingent consideration payments     $ 2,500,000             $ 2,500,000   $ 2,500,000  
Decrease intangible asset adjustment                         (1,600,000)
Increase in property, plant and equipment                         800,000
Increase (decrease) in initial purchase price                     19,900,000   100,000
Increase to accounts payable adjustment                     25,900,000   200,000
Business acquisitions, net of cash acquired     $ 25,300,000                    
Decrease in Goodwill                         600,000
Contingent consideration payout term     3 months                    
Increase to working capital adjustment                         100,000
Decrease to inventory adjustment                         (100,000)
LaSalle                          
Business Acquisition [Line Items]                          
Net initial purchase price   $ 51,100,000                      
Increase in goodwill adjustment                         6,700,000
Increase (decrease) in initial purchase price                         1,100,000
Number of manufacturing and distribution centers located in North America | facility   15                      
Increase to working capital adjustment                     18,600,000   1,100,000
Decrease to inventory adjustment                         6,700,000
Increase to accounts receivable                         800,000
Increase to prepaid expenses                         300,000
Accrued Liabilities                          
Business Acquisition [Line Items]                          
Fair value of estimated contingent consideration payments 4,500,000               4,500,000   4,500,000   4,400,000
Other Long-term Liabilities                          
Business Acquisition [Line Items]                          
Fair value of estimated contingent consideration payments $ 7,500,000               $ 7,500,000   $ 7,500,000   $ 9,400,000