Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangibles - Goodwill (Details)

v3.19.1
Goodwill and Other Intangibles - Goodwill (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2019
USD ($)
item
Dec. 31, 2018
USD ($)
Changes in the carrying amount of goodwill    
Number of reporting units | item 2  
Gross Goodwill, at beginning of period $ 2,126,037  
Additions (Measurement Period Adjustments) (724)  
Gross Goodwill, at end of period 2,125,313  
Accumulated Impairment Losses (762,021)  
Net Goodwill 1,363,292 $ 1,364,016
USI    
Changes in the carrying amount of goodwill    
Additions (Measurement Period Adjustments) (700)  
Net Goodwill 280,483  
Installation    
Changes in the carrying amount of goodwill    
Gross Goodwill, at beginning of period 1,679,654  
Additions (Measurement Period Adjustments) (646)  
Gross Goodwill, at end of period 1,679,008  
Accumulated Impairment Losses (762,021)  
Net Goodwill 916,987  
Distribution    
Changes in the carrying amount of goodwill    
Gross Goodwill, at beginning of period 446,383  
Additions (Measurement Period Adjustments) (78)  
Gross Goodwill, at end of period 446,305  
Net Goodwill $ 446,305