Goodwill and Other Intangibles - Goodwill (Details) $ in Thousands |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Dec. 31, 2020
USD ($)
|
Dec. 31, 2019
USD ($)
|
Dec. 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 | $ 2,126,037 | ||
| Additions | 42,767 | 3,902 | ||
| Gross Goodwill, at end of period | $ 2,172,706 | $ 2,129,939 | 2,172,706 | 2,129,939 |
| Accumulated Impairment Losses | (762,021) | (762,021) | (762,021) | (762,021) |
| Net Goodwill | 1,410,685 | 1,367,918 | 1,410,685 | 1,367,918 |
| Impairment of goodwill | 0 | 0 | ||
| Installation | ||||
| Changes in the carrying amount of goodwill | ||||
| Gross Goodwill, at beginning of period | 1,683,589 | 1,679,654 | ||
| Additions | 42,767 | 3,935 | ||
| Gross Goodwill, at end of period | 1,726,356 | 1,683,589 | 1,726,356 | 1,683,589 |
| Accumulated Impairment Losses | (762,021) | (762,021) | (762,021) | (762,021) |
| Net Goodwill | 964,335 | 921,568 | 964,335 | 921,568 |
| Distribution | ||||
| Changes in the carrying amount of goodwill | ||||
| Gross Goodwill, at beginning of period | 446,350 | 446,383 | ||
| Additions | (33) | |||
| Gross Goodwill, at end of period | 446,350 | 446,350 | 446,350 | 446,350 |
| Net Goodwill | $ 446,350 | $ 446,350 | $ 446,350 | $ 446,350 |
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|