XML 81 R65.htm IDEA: XBRL DOCUMENT v3.20.4
Goodwill, Identifiable Intangible Assets, And Other Long-Lived Assets - Narrative (Details) - USD ($)
 6 Months Ended 12 Months Ended
Oct. 01, 2020
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Goodwill and Intangible Assets[Line Items]          
Goodwill     $ 851,783,000 $ 1,063,911,000 $ 990,887,000
Goodwill acquired     13,000,000.0 73,100,000  
Non-cash goodwill impairment charge     225,500,000 0 0
Goodwill, accumulated impairment loss         268,100,000
Non-cash expense for impairment of intangible and tangible assets, excluding goodwill     7,300,000    
Non-cash impairment charge of finite-lived intangible assets       0 900,000
Indefinite-lived intangible asset acquired     $ 38,100,000 171,300,000  
Amortization periods     7 years 9 months    
Amortization of identifiable intangible assets     $ 59,950,000 48,142,000 42,443,000
Domestic Segments          
Goodwill and Intangible Assets[Line Items]          
Perpetual growth rate used for annual testing 2.00%        
Domestic Construction          
Goodwill and Intangible Assets[Line Items]          
Weighted average cost of capital used in annual testing for impairment 10.60%        
United States Electrical Construction And Facilities Services          
Goodwill and Intangible Assets[Line Items]          
Goodwill     $ 142,545,000 142,545,000 133,207,000
Goodwill allocated     16.70%    
Non-cash goodwill impairment charge     $ 0    
Effect of 50 Basis Point Increase in the Weighted Average Costs of Capital     63,300,000    
Effect of 50 Basis Point Decrease in the Perpetual Growth Rate     31,000,000.0    
United States Mechanical Construction And Facilities Services          
Goodwill and Intangible Assets[Line Items]          
Goodwill     $ 299,618,000 299,220,000 256,321,000
Goodwill allocated     35.20%    
Non-cash goodwill impairment charge     $ 0    
Effect of 50 Basis Point Increase in the Weighted Average Costs of Capital     115,900,000    
Effect of 50 Basis Point Decrease in the Perpetual Growth Rate     58,900,000    
United States Building Services          
Goodwill and Intangible Assets[Line Items]          
Goodwill     $ 302,132,000 289,158,000 274,171,000
Goodwill allocated     35.50%    
Weighted average cost of capital used in annual testing for impairment 10.40%        
Non-cash goodwill impairment charge     $ 0    
Effect of 50 Basis Point Increase in the Weighted Average Costs of Capital     69,900,000    
Effect of 50 Basis Point Decrease in the Perpetual Growth Rate     33,500,000    
Goodwill, accumulated impairment loss         139,500,000
United States Industrial Services          
Goodwill and Intangible Assets[Line Items]          
Goodwill     $ 107,488,000 332,988,000 327,188,000
Goodwill allocated     12.60%    
Weighted average cost of capital used in annual testing for impairment 11.60% 12.00%      
Perpetual growth rate used for annual testing   2.00%      
Non-cash goodwill impairment charge     $ 225,500,000    
Effect of 50 Basis Point Increase in the Weighted Average Costs of Capital     23,200,000    
Effect of 50 Basis Point Decrease in the Perpetual Growth Rate     9,700,000    
Goodwill, accumulated impairment loss         128,600,000
Non-cash expense for impairment of intangible and tangible assets, excluding goodwill     4,800,000    
Non-cash expense for impairment of property, plant and equipment     $ 600,000    
Contract backlog          
Goodwill and Intangible Assets[Line Items]          
Amortization periods     9 months    
Developed technology/Vendor network          
Goodwill and Intangible Assets[Line Items]          
Amortization periods     6 years 9 months    
Customer relationships          
Goodwill and Intangible Assets[Line Items]          
Amortization periods     8 years    
Trade names (amortized)          
Goodwill and Intangible Assets[Line Items]          
Amortization periods     9 years 9 months    
Trade names (unamortized)          
Goodwill and Intangible Assets[Line Items]          
Non-cash expense for impairment of identifiable intangible assets       $ 0 $ 0
Trade names (unamortized) | United States Electrical Construction And Facilities Services          
Goodwill and Intangible Assets[Line Items]          
Non-cash expense for impairment of identifiable intangible assets     $ 2,500,000    
Trade names (unamortized) | United States Industrial Services          
Goodwill and Intangible Assets[Line Items]          
Non-cash expense for impairment of identifiable intangible assets     $ 4,200,000