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Acquisitions - Narrative (Details) - USD ($) $ in Thousands |  |  |  | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 31, 2025 | Oct. 30, 2024 | Oct. 01, 2024 | Mar. 31, 2025 | Mar. 31, 2024 | Jun. 30, 2024
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to acquire businesses |  |  |  | $ 1,642,075 | $ 81,577 |
Goodwill | $ 4,941,564 |  |  | 4,941,564 |  | $ 4,154,844
Goodwill acquired |  |  |  | 783,707 |  |
AI Corporate Holdings, Inc |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to acquire businesses |  |  | $ 314,200 |  |  |
Applied Insight |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to acquire businesses |  |  | 314,200 |  |  |
Goodwill |  |  | 217,500 |  |  |
Identifiable intangible assets |  |  | 95,200 |  |  |
Amount of tax deductible goodwill and intangibles |  |  | 248,600 |  |  |
Applied Insight | Customer Relationships |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Identifiable intangible assets |  |  | $ 84,300 |  |  |
Acquired finite-lived intangible assets, weighted average useful life |  |  | 8 years |  |  |
Applied Insight | Acquired technologies |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Identifiable intangible assets |  |  | $ 10,900 |  |  |
Acquired finite-lived intangible assets, weighted average useful life |  |  | 5 years |  |  |
Azure Summit Technology, Inc |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to acquire businesses |  | $ 1,310,200 |  |  |  |
Goodwill |  | 566,176 |  |  |  |
Goodwill acquired | $ 22,600 |  |  |  |  |
Accounts receivable, measurement period adjustments |  |  |  | $ (7,900) |  |
Useful life | 25 years |  |  | 25 years |  |
Intangible assets, measurement period adjustment |  |  |  | $ (14,500) |  |
Intangible assets, net |  | 635,000 |  |  |  |
Azure Summit Technology, Inc | Customer Relationships |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Intangible assets, net |  | $ 270,500 |  |  |  |
Azure Summit Technology, Inc | Customer Relationships | Minimum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired finite-lived intangible assets, weighted average useful life |  | 10 years |  |  |  |
Azure Summit Technology, Inc | Customer Relationships | Maximum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired finite-lived intangible assets, weighted average useful life |  | 20 years |  |  |  |
Azure Summit Technology, Inc | Acquired technologies |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Intangible assets, net |  | $ 364,500 |  |  |  |
Azure Summit Technology, Inc | Acquired technologies | Minimum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired finite-lived intangible assets, weighted average useful life |  | 20 years |  |  |  |
Azure Summit Technology, Inc | Acquired technologies | Maximum |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired finite-lived intangible assets, weighted average useful life |  | 25 years |  |  |  |
Azure Summit and Applied Insight |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquisition-related expenses |  |  |  | 13,500 |  |
Azure Summit and Applied Insight | Domestic Reportable Segment |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Revenues |  |  |  | $ 207,400 |  |

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