Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangibles - Goodwill (Details)

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Goodwill and Other Intangibles - Goodwill (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
item
Dec. 31, 2019
USD ($)
Changes in the carrying amount of goodwill    
Number of reporting units | item 2  
Gross Goodwill, at beginning of period $ 2,129,939  
Additions 11,913  
Gross Goodwill, at end of period 2,141,852 $ 2,129,939
Accumulated Impairment Losses (762,021)  
Net Goodwill 1,379,831 1,367,918
Impairment of goodwill   0
Installation    
Changes in the carrying amount of goodwill    
Gross Goodwill, at beginning of period 1,683,589  
Additions 11,913  
Gross Goodwill, at end of period 1,695,502 1,683,589
Accumulated Impairment Losses (762,021)  
Net Goodwill 933,481  
Distribution    
Changes in the carrying amount of goodwill    
Gross Goodwill, at beginning of period 446,350  
Gross Goodwill, at end of period 446,350 $ 446,350
Net Goodwill $ 446,350