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Retirement Plans - Schedule of Multiemployer Plans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 11-2125338 |  |
Expense recognized |  | $ 35,000 | $ 33,000 | $ 32,400
Multiemployer Plans, Pension |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
Contributions |  | $ 236,165 | $ 221,081 | 197,726
Multiemployer Plans, Pension | National Automatic Sprinkler Industry Pension Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 52-6054620 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 21,583 | $ 20,987 | 17,504
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | United Association National Pension Fund (Formerly Plumbers & Pipefitters National Pension Fund) |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 52-6152779 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 15,288 | $ 14,723 | 14,095
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | National Electrical Benefit Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 53-0181657 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 15,192 | $ 12,310 | 11,573
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Sheet Metal Workers National Pension Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 52-6112463 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Yellow |
FIP/RP Status |  | NA |  |
Contributions |  | $ 9,505 | $ 10,307 | 11,621
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Pension, Hospitalization & Benefit Plan of the Electrical Industry-Pension Trust Account |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 13-6123601 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 8,122 | $ 7,355 | 6,750
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Electrical Workers Local No. 26 Pension Trust Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 52-6117919 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 7,844 | $ 9,346 | 7,086
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Plumbers Pipefitters & Mechanical Equipment Service Local Union 392 Pension Plan |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 31-0655223 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Red | Red |
FIP/RP Status |  | Implemented |  |
Contributions |  | $ 7,674 | $ 7,110 | 5,667
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Central Pension Fund of the IUOE & Participating Employers |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 36-6052390 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 7,651 | $ 6,627 | 6,115
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Boilermaker-Blacksmith National Pension Trust |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 48-6168020 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Yellow |
FIP/RP Status |  | NA |  |
Contributions |  | $ 6,434 | $ 3,479 | 1,574
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Sheet Metal Workers Pension Plan of Northern California |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 51-6115939 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Red | Red |
FIP/RP Status |  | Implemented |  |
Contributions |  | $ 6,074 | $ 7,850 | 6,605
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Edison Pension Plan |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 93-6061681 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 5,325 | $ 4,229 | 3,864
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Pipefitters Union Local 537 Pension Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 51-6030859 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 5,039 | $ 5,922 | 4,275
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Southern California Pipe Trades Retirement Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 51-6108443 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 4,650 | $ 6,272 | 4,043
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Heating, Piping & Refrigeration Pension Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 52-1058013 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 4,625 | $ 5,591 | 3,349
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Southern California IBEW-NECA Pension Trust Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 95-6392774 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Yellow | Yellow |
FIP/RP Status |  | Implemented |  |
Contributions |  | $ 4,287 | $ 4,876 | 5,719
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | San Diego Electrical Pension Plan |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 95-6101801 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 4,258 | $ 4,068 | 4,383
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | IBEW 332 Pension Fund - Part A |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 94-2688032 |  |
Pension Plan Number |  | 004 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 4,177 | $ 2,339 | 1,211
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | U.A. Local 393 Pension Trust Fund Defined Benefit |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 94-6359772 |  |
Pension Plan Number |  | 002 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 3,517 | $ 3,507 | 3,168
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Electrical Contractors Association of the City of Chicago Local Union 134, IBEW Joint Pension Trust of Chicago Pension Plan 2 |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 51-6030753 |  |
Pension Plan Number |  | 002 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 3,516 | $ 4,225 | 3,004
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Eighth District Electrical Pension Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 84-6100393 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 3,339 | $ 3,298 | 3,242
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Northern California Pipe Trades Pension Plan |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 94-3190386 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 3,238 | $ 2,663 | 2,463
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | NECA-IBEW Pension Trust Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 51-6029903 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 3,034 | $ 2,491 | 2,369
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Arizona Pipe Trades Pension Trust Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 86-6025734 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 2,940 | $ 2,020 | 2,301
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Sheet Metal Workers Pension Plan of Southern California, Arizona & Nevada |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 95-6052257 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Yellow |
FIP/RP Status |  | NA |  |
Contributions |  | $ 2,921 | $ 3,322 | 2,706
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Electrical Workers Pension Plan Local 103 IBEW |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 04-6063734 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 2,900 | $ 0 | 0
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | IBEW Local 701 Pension Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 36-6455509 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 2,625 | $ 1,276 | 1,197
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | IBEW Local No. 82 Pension Plan |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 31-6127268 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 2,549 | $ 956 | 18
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Local No. 697 IBEW and Electrical Industry Pension Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 51-6133048 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 2,287 | $ 1,753 | 1,583
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | U.A. Local 38 Defined Benefit Pension Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 94-1285319 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Green | Green |
FIP/RP Status |  | NA |  |
Contributions |  | $ 2,010 | $ 1,903 | 2,874
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Plumbing & Pipe Fitting Local 219 Pension Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 34-6682376 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Red | Red |
FIP/RP Status |  | Implemented |  |
Contributions |  | $ 1,172 | $ 1,167 | 1,680
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Plumbers & Pipefitters Local 162 Pension Fund |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 31-6125999 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Yellow | Yellow |
FIP/RP Status |  | Implemented |  |
Contributions |  | $ 1,132 | $ 1,034 | 969
Contributions greater than 5% | [2] | true |  |
Multiemployer Plans, Pension | Steamfitters Local Union No. 420 Pension Plan |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 23-2004424 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Red | Red |
FIP/RP Status |  | Implemented |  |
Contributions |  | $ 1,018 | $ 677 | 553
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Carpenters Pension Trust Fund for Northern California |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
EIN |  | 94-6050970 |  |
Pension Plan Number |  | 001 |  |
Zone Status | [1] | Red | Red |
FIP/RP Status |  | Implemented |  |
Contributions |  | $ 532 | $ 568 | 385
Contributions greater than 5% | [2] | false |  |
Multiemployer Plans, Pension | Other Multiemployer Pension Plans |  |  |  |
Multiemployer Plans [Line Items] |  |  |  |
Contributions |  | $ 59,707 | $ 56,830 | $ 53,780
[1] | The zone status represents the most recent available information for the respective MEPP, which may be 2021 or earlier for the 2022 year and 2020 or earlier for the 2021 year. In general, plans with a “green” zone status have a funding ratio of at least 80%, plans with an “orange” or “yellow” zone status have a funding ratio of between 65% and less than 80%, and plans with a “red” zone status are less than 65% funded.
[2] | This information was obtained from the respective plan’s Form 5500 (“Forms”) for the most current available filing. These dates may not correspond with our fiscal year contributions. The percentages of contributions are based upon disclosures contained in the plans’ Forms. Those Forms, among other things, disclose the names of individual participating employers whose annual contributions account for more than 5% of the aggregate annual amount contributed by all participating employers for a plan year. Accordingly, if the annual contribution of two or more of our subsidiaries each accounted for less than 5% of such contributions, but in the aggregate accounted for in excess of 5% of such contributions, that greater percentage is not available and therefore is not disclosed.

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