Goodwill and Other Intangibles - Goodwill (Details) $ in Thousands |
9 Months Ended | |
|---|---|---|
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Sep. 30, 2018
USD ($)
item
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Dec. 31, 2017
USD ($)
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| Changes in the carrying amount of goodwill | ||
| Number of reporting units | item | 2 | |
| Gross Goodwill, at beginning of period | $ 1,839,207 | |
| Additions | 285,561 | |
| Gross Goodwill, at end of period | 2,124,768 | |
| Accumulated Impairment Losses | (762,021) | |
| Net Goodwill | 1,362,747 | $ 1,077,186 |
| Installation | ||
| Changes in the carrying amount of goodwill | ||
| Gross Goodwill, at beginning of period | 1,422,920 | |
| Additions | 255,465 | |
| Gross Goodwill, at end of period | 1,678,385 | |
| Accumulated Impairment Losses | (762,021) | |
| Net Goodwill | 916,364 | |
| Distribution | ||
| Changes in the carrying amount of goodwill | ||
| Gross Goodwill, at beginning of period | 416,287 | |
| Additions | 30,096 | |
| Gross Goodwill, at end of period | 446,383 | |
| Net Goodwill | $ 446,383 |
| 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://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- 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
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- 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
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- 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.
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- 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.
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