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Acquisitions - Narrative (Details) $ in Thousands |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jan. 31, 2022 USD ($) | Jun. 17, 2021 USD ($) shares | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) acquisition | Sep. 30, 2021 USD ($) | Dec. 31, 2021 USD ($) acquisition
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |  |
Net cash paid |  |  |  |  | $ 719,539 | $ 1,033,695 |
Series of Individually Immaterial Business Acquisitions |  |  |  |  |  |  |
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |  |
Total consideration |  |  |  |  | 738,814 |  | $ 1,269,844
Net cash paid |  |  |  |  | $ 719,539 |  | $ 1,034,983
Number of acquisitions | acquisition |  |  |  |  | 4 |  | 13
Acquisition and integration costs |  |  | $ 0 | $ 0 | $ 10,824 | 18,037 |
Power Line Systems |  |  |  |  |  |  |
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |  |
Net cash paid | $ 695,968 |  |  |  |  |  |
Acquisition and integration costs |  |  | 350 |  | 10,149 |  |
Goodwill from acquisition, expected tax deductible amount |  |  | $ 524,360 |  | $ 524,360 |  |
Seequent |  |  |  |  |  |  |
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |  |
Net cash paid |  | $ 883,336 |  |  |  |  |
Acquisition and integration costs |  |  |  | $ 389 |  | 16,285 |
Business acquisition, pro forma revenue |  |  |  |  |  | $ 749,923 |
Seequent | Class B Common Stock |  |  |  |  |  |  |
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |  |  |  |
Number of shares sold (in shares) | shares |  | 3,141,342 |  |  |  |  |

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