Quarterly report pursuant to Section 13 or 15(d)

The preliminary values of major classes of assets acquired and liabilities assumed recorded at the date of acquisition, as adjusted during the valuation period (Details)

v3.19.2
The preliminary values of major classes of assets acquired and liabilities assumed recorded at the date of acquisition, as adjusted during the valuation period (Details) - USD ($)
 6 Months Ended
Jun. 30, 2019
Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]    
Materials & supplies $ 17,579,000 $ 15,788,000
Goodwill 563,075,000 $ 368,481,000
Finite-lived Intangible Assets Acquired 397,523,000  
Customer Contracts [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite-lived Intangible Assets Acquired $ 283,309,000  
Customer Contracts [Member] | Minimum [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite lived intangible assets useful life 3 years  
Customer Contracts [Member] | Maximum [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite lived intangible assets useful life 12 years  
Trademarks and Trade Names [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite-lived Intangible Assets Acquired $ 102,986,000  
Trademarks and Trade Names [Member] | Maximum [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite lived intangible assets useful life 20 years  
Noncompete Agreements [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite-lived Intangible Assets Acquired $ 4,881,000  
Noncompete Agreements [Member] | Minimum [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite lived intangible assets useful life 3 years  
Noncompete Agreements [Member] | Maximum [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite lived intangible assets useful life 20 years  
Patents [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite-lived Intangible Assets Acquired $ 1,743,000  
Patents [Member] | Minimum [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite lived intangible assets useful life 3 years  
Patents [Member] | Maximum [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite lived intangible assets useful life 15 years  
Other Intangible Assets [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite-lived Intangible Assets Acquired $ 2,377,000  
Finite lived intangible assets useful life 10 years  
Internet Domain Names [Member]    
Restructuring Cost and Reserve [Line Items]    
Finite-lived Intangible Assets Acquired $ 2,227,000  
Acquisitions [Member]    
Restructuring Cost and Reserve [Line Items]    
Accounts receivable, net 7,496,000  
Materials & supplies 1,213,000  
Equipment and property 67,048,000  
Goodwill 194,562,000  
Customer contracts and other intangible assets 173,450,000  
Current liabilities (13,470,000)  
Other assets and liabilities, net (7,532)  
Total cash purchase price 422,767,000  
Less: Contingent consideration liability (12,700,000)  
Total cash purchase price $ 410,067