XML 52 R42.htm IDEA: XBRL DOCUMENT v3.21.2
Acquisitions (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 08, 2021
Sep. 30, 2021
Dec. 31, 2020
Asset Acquisition [Line Items]      
Goodwill   $ 1,926,919 $ 1,912,328
2021 Acquisitions      
Asset Acquisition [Line Items]      
Business Combination, consideration transferred $ 65,500 107,593  
Total acquired intangible assets   91,584  
Goodwill   14,584  
Business acquisition, goodwill, expected tax deductible amount   $ 14,584  
Acquired finite-lived intangible assets, weighted average useful life   14 years  
Amortization of acquired intangible asset   $ 1,158  
2021 Acquisitions | Customer lists and contracts      
Asset Acquisition [Line Items]      
Acquired finite-lived intangible assets, weighted average useful life   7 years  
Finite-lived intangible assets acquired   $ 10,100  
2021 Acquisitions | Site locations      
Asset Acquisition [Line Items]      
Acquired finite-lived intangible assets, weighted average useful life   15 years  
Finite-lived intangible assets acquired   $ 66,321