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Detail of Certain Accounts - Intangible Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Goodwill And Intangible Assets [Line Items] |  |
Intangible Assets, subject to amortization | $ 3,737,577 | $ 3,529,896
Accumulated amortization | (1,782,039) | (1,672,359)
Other intangible assets subject to amortization, net | 1,955,538 | 1,857,537
Other intangible assets, net | 1,958,538 | 1,860,537
Engineering license |  |
Goodwill And Intangible Assets [Line Items] |  |
Engineering license | 3,000 | 3,000
Customer relationships |  |
Goodwill And Intangible Assets [Line Items] |  |
Intangible Assets, subject to amortization | 2,586,666 | 2,405,606
Backlog |  |
Goodwill And Intangible Assets [Line Items] |  |
Intangible Assets, subject to amortization | 449,359 | 442,459
Trade names |  |
Goodwill And Intangible Assets [Line Items] |  |
Intangible Assets, subject to amortization | 588,551 | 569,307
Non-compete agreements |  |
Goodwill And Intangible Assets [Line Items] |  |
Intangible Assets, subject to amortization | 61,865 | 61,589
Patented rights, developed technology, process certifications and other |  |
Goodwill And Intangible Assets [Line Items] |  |
Intangible Assets, subject to amortization | 35,317 | 35,317
Curriculum |  |
Goodwill And Intangible Assets [Line Items] |  |
Intangible Assets, subject to amortization | $ 15,819 | $ 15,618

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