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Acquisitions and Divestitures - Acquisitions (Details) - USD ($) $ in Thousands |  |  |  |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 23, 2020 | Feb. 28, 2020 | Sep. 03, 2019 | Jul. 18, 2019 | Jul. 23, 2018 | Apr. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Mar. 31, 2020
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  | $ 1,895,574 | $ 1,779,745 | $ 1,697,955 |
Acquisition-related transaction costs |  |  |  |  |  |  | 4,300 |  |  |
Fair value inventory step-up charge associated with acquisition |  |  |  |  |  |  |  | 3,300 |  |
Debt acquired with acquisition of business |  |  |  |  |  |  | 0 | 51,130 | 0 |
Contingent consideration |  |  |  |  |  |  |  | 3,375 |  |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Acquisition-related transaction costs |  |  |  |  |  |  |  | $ 1,700 | $ 3,000 |
Qualtek |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate purchase price, cash paid | $ 1,900 |  |  |  |  |  |  |  |  |
Goodwill | 1,100 |  |  |  |  |  |  |  |  |
Goodwill, expected tax deductible amount | $ 1,100 |  |  |  |  |  |  |  |  |
Fair value inventory step-up charge associated with acquisition |  |  |  |  |  |  | 100 |  |  |
Flow MD |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate purchase price, cash paid |  | $ 121,200 |  |  |  |  |  |  |  |
Goodwill |  | 60,431 |  |  |  |  |  |  |  |
Goodwill, expected tax deductible amount |  | 60,400 |  |  |  |  |  |  |  |
Intangible assets |  | $ 53,000 |  |  |  |  |  |  |  |
Fair value inventory step-up charge associated with acquisition |  |  |  |  |  |  | $ 4,100 |  |  |
Velcora Holding AB |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate purchase price, cash paid |  |  |  |  | $ 87,200 |  |  |  |  |
Goodwill |  |  |  | $ 86,613 |  |  |  |  |  |
Intangible assets |  |  |  | 48,183 |  |  |  |  |  |
Debt acquired with acquisition of business |  |  |  | $ 51,100 |  |  |  |  |  |
Loss on extinguishment of debt |  |  | $ 700 |  |  |  |  |  |  |
FLI |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate purchase price, cash paid |  |  |  |  | 20,200 |  |  |  |  |
Goodwill |  |  |  |  | 12,400 |  |  |  |  |
Goodwill, expected tax deductible amount |  |  |  |  | 12,400 |  |  |  |  |
Intangible assets |  |  |  |  | 7,900 |  |  |  |  |
Consideration transferred |  |  |  |  | 23,600 |  |  |  |  |
Contingent consideration |  |  |  |  | $ 3,400 |  |  |  |  | $ 3,000
Contingent consideration arrangements, period |  |  |  |  | 24 months |  |  |  |  |
Contingent consideration paid |  |  |  |  |  | $ 3,000 |  |  |  |

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