Quarterly report pursuant to Section 13 or 15(d)

Business Combinations - Fair value of consideration (Details)

v3.8.0.1
Business Combinations - Fair value of consideration (Details) - USD ($)
$ in Thousands
9 Months Ended
Jun. 08, 2017
Apr. 20, 2017
Feb. 27, 2017
Jan. 16, 2017
Sep. 30, 2017
Sep. 30, 2016
Fair value of consideration            
Cash         $ 84,040 $ 3,476
2017 Acquisitions            
Fair value of consideration            
Cash         84,040  
Deferred consideration         2,600  
Contingent consideration         2,110  
Total consideration transferred         88,750  
Midwest            
Fair value of consideration            
Cash       $ 12,200 12,225  
Total consideration transferred         12,225  
EcoFoam            
Fair value of consideration            
Cash     $ 20,200   20,215  
Contingent consideration     2,100   2,110  
Total consideration transferred     $ 22,300   22,325  
Superior            
Fair value of consideration            
Cash         10,952  
Total consideration transferred   $ 10,900     10,952  
Canyon            
Fair value of consideration            
Cash $ 31,800       31,815  
Deferred consideration 2,700       2,600  
Total consideration transferred $ 34,400       34,415  
All others            
Fair value of consideration            
Cash         8,833  
Total consideration transferred         $ 8,833