Quarterly report pursuant to Section 13 or 15(d)

BUSINESS COMBINATIONS (Details)

v3.20.2
BUSINESS COMBINATIONS (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Jun. 30, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Dec. 31, 2018
Business Acquisition [Line Items]            
Materials & supplies $ 30,386   $ 19,476      
Goodwill 619,656   572,847      
Less: Contingent consideration liability (33,771) $ (47,085) $ (49,131) $ (51,835) $ (54,685) $ (30,926)
Acquisitions [Member]            
Business Acquisition [Line Items]            
Accounts receivable, net 2,344          
Materials & supplies 280          
Equipment and property 4,424          
Goodwill 44,585          
Customer contracts 37,995          
Other intangible assets 3,149          
Other assets and liabilities, net 5,319          
Current liabilities (10,199)          
Total purchase price 87,897          
Less: Contingent consideration liability (8,017)          
Total cash purchase price $ 79,880