XML 39 R27.htm IDEA: XBRL DOCUMENT v3.21.1
Revenue from Contracts with Customers (Tables)
 3 Months Ended
Mar. 31, 2021
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenues
The following tables provide further disaggregation of our revenues, by categories we use to evaluate our financial performance within each of our reportable segments, for the three months ended March 31, 2021 and 2020 (in thousands):
For the three months ended March 31,
2021% of
Total		2020% of
Total
United States electrical construction and facilities services:
Commercial market sector$244,983 53 %$239,846 52 %
Institutional market sector43,129 9 %37,393 8 %
Hospitality market sector4,664 1 %5,082 1 %
Manufacturing market sector48,423 11 %66,843 14 %
Healthcare market sector19,414 4 %19,225 4 %
Transportation market sector42,031 9 %44,180 9 %
Water and wastewater market sector3,651 1 %2,329 1 %
Short duration projects (1)
43,800 10 %40,270 9 %
Service work7,268 2 %7,447 2 %
457,363 462,615 
Less intersegment revenues(1,195)(812)
Total segment revenues$456,168 $461,803 

For the three months ended March 31,
2021% of
Total		2020% of
Total
United States mechanical construction and facilities services:
Commercial market sector$366,675 40 %$304,690 36 %
Institutional market sector69,304 8 %76,997 9 %
Hospitality market sector8,529 1 %7,714 1 %
Manufacturing market sector105,427 12 %115,582 14 %
Healthcare market sector112,785 12 %88,059 10 %
Transportation market sector18,417 2 %14,346 2 %
Water and wastewater market sector43,848 5 %40,513 5 %
Short duration projects (1)
88,783 10 %97,202 12 %
Service work91,778 10 %90,893 11 %
905,546 835,996 
Less intersegment revenues(1,621)(1,884)
Total segment revenues$903,925 $834,112 
 ________
(1)Represents those projects which generally are completed within three months or less.
For the three months ended March 31,
2021% of
Total		2020% of
Total
United States building services:
Commercial site-based services$175,647 30 %$143,438 27 %
Government site-based services41,072 7 %42,917 8 %
Mobile mechanical services334,950 58 %312,919 59 %
Energy services30,170 5 %28,337 6 %
Total segment revenues$581,839 $527,611 
NOTE 3 - Revenue from Contracts with Customers (Continued)
For the three months ended March 31,
2021% of
Total		2020% of
Total
United States industrial services:
Field services$207,554 88 %$323,654 89 %
Shop services27,828 12 %40,275 11 %
Total segment revenues$235,382 $363,929 
Total United States operations$2,177,314 $2,187,455 
For the three months ended March 31,
2021% of
Total		2020% of
Total
United Kingdom building services:
Service work$61,991 49 %$55,106 49 %
Project work64,744 51 %57,271 51 %
Total segment revenues$126,735 $112,377 
Total operations$2,304,049 $2,299,832 
Accounts Receivable, Allowance for Credit Losses
The change in the allowance for credit losses for the three months ended March 31, 2021 was as follows (in thousands):
Balance at December 31, 2020$18,031 
Provision for credit losses507 
Amounts written off against the allowance, net of recoveries(475)
Balance at March 31, 2021$18,063 
Contract Assets and Contract Liabilities
Net contract liabilities consisted of the following as of March 31, 2021 and December 31, 2020 (in thousands):
March 31, 2021December 31, 2020
Contract assets, current$192,369 $171,956 
Contract assets, non-current— — 
Contract liabilities, current(739,572)(722,252)
Contract liabilities, non-current(2,314)(2,283)
Net contract liabilities$(549,517)$(552,579)
Remaining Performance Obligations
The following table presents the transaction price allocated to remaining unsatisfied performance obligations (“remaining performance obligations”) for each of our reportable segments and their respective percentages of total remaining performance obligations as of March 31, 2021 (in thousands, except for percentages):
March 31, 2021% of Total
Remaining performance obligations:
United States electrical construction and facilities services$1,161,996 24 %
United States mechanical construction and facilities services2,664,548 56 %
United States building services678,343 14 %
United States industrial services120,964 3 %
Total United States operations4,625,851 97 %
United Kingdom building services149,306 3 %
Total operations$4,775,157 100 %
Remaining Performance Obligations, Expected Timing of Satisfaction
Refer to the table below for additional information regarding our remaining performance obligations, including an estimate of when we expect to recognize such remaining performance obligations as revenue (in thousands):
Within one yearGreater than one year
Remaining performance obligations:
United States electrical construction and facilities services$1,027,765 $134,231 
United States mechanical construction and facilities services2,166,825 497,723 
United States building services621,684 56,659 
United States industrial services120,964 — 
Total United States operations3,937,238 688,613 
United Kingdom building services117,903 31,403 
Total operations$4,055,141 $720,016