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Acquisitions - Additional Information (Detail) $ in Thousands, $ in Millions | 1 Months Ended | 2 Months Ended | 9 Months Ended
--- | --- | --- | ---
Oct. 31, 2022 USD ($) | Oct. 31, 2022 CAD ($) | Apr. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($)
Business Acquisition [Line Items] |  |  |  |  |
Purchases of businesses, net of cash acquired |  |  |  | $ 190,321 | $ 1,839,664
2021 Consolidated Acquisition |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Purchases of businesses, net of cash acquired |  |  | $ (190,300) |  |
Business acquisition, goodwill, expected tax deductible amount |  |  |  | 52,000 |
Two Thousand And Twenty Consolidated Acquisition [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Other intangible assets |  |  |  | 95,000 |
Finite-lived intangible assets acquired |  |  |  | 79,800 |
Expected amortization, remainder of fiscal year |  |  |  | 5,000 |
Future amortization expense, year two |  |  |  | 5,000 |
Future amortization expense, year five |  |  |  | 5,000 |
Future amortization expense, year four |  |  |  | 5,000 |
Future amortization expense, year three |  |  |  | 5,000 |
Future amortization expense, year one |  |  |  | 5,000 |
Two Thousand And Twenty Consolidated Acquisition [Member] | Trade Names |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Indefinite-lived intangible trade names acquired |  |  |  | 15,200 |
Two Thousand And Twenty Consolidated Acquisition [Member] | Customer Relationship |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-lived intangible assets acquired |  |  |  | $ 64,600 |
Two Thousand And Twenty Consolidated Acquisition [Member] | Customer Relationship | Minimum |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Amortization period for finite-lived intangible asset |  |  |  | 17 years |
Two Thousand And Twenty Consolidated Acquisition [Member] | Purchased Technology |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Finite-lived intangible assets acquired |  |  |  | $ 15,200 |
Two Thousand And Twenty Consolidated Acquisition [Member] | Purchased Technology | Minimum |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Amortization period for finite-lived intangible asset |  |  |  | 17 years |
RTDS Technologies | Subsequent Event |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Payments to acquire businesses, gross | $ 240,000 | $ 325.0 |  |  |

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