Business Segments - Schedule of Financial Information of Reportable Segments (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Segment Reporting [Line Items] | |||
| Revenues | $ 9,567,779 | $ 8,627,824 | $ 7,659,832 |
| Direct costs | 6,390,886 | 5,835,558 | 5,147,540 |
| Indirect costs and selling expenses | 2,011,179 | 1,832,956 | 1,720,439 |
| Depreciation and amortization | 245,899 | 195,125 | 142,145 |
| Income from operations | 919,815 | 764,185 | 649,708 |
| Capital expenditures | 106,653 | 65,603 | 63,686 |
| Domestic | |||
| Segment Reporting [Line Items] | |||
| Revenues | 9,260,288 | 8,370,361 | 7,432,745 |
| Domestic | Operating segments | |||
| Segment Reporting [Line Items] | |||
| Revenues | 9,260,288 | 8,370,361 | 7,432,745 |
| Direct costs | 6,255,615 | 5,727,031 | 5,057,415 |
| Indirect costs and selling expenses | 1,904,658 | 1,743,160 | 1,630,768 |
| Depreciation and amortization | 240,142 | 190,618 | 138,548 |
| Income from operations | 859,873 | 709,552 | 606,014 |
| Capital expenditures | 99,950 | 63,901 | 60,898 |
| International | |||
| Segment Reporting [Line Items] | |||
| Revenues | 307,491 | 257,463 | 227,087 |
| International | Operating segments | |||
| Segment Reporting [Line Items] | |||
| Revenues | 307,491 | 257,463 | 227,087 |
| Direct costs | 135,271 | 108,527 | 90,125 |
| Indirect costs and selling expenses | 106,521 | 89,796 | 89,671 |
| Depreciation and amortization | 5,757 | 4,507 | 3,597 |
| Income from operations | 59,942 | 54,633 | 43,694 |
| Capital expenditures | $ 6,703 | $ 1,702 | $ 2,788 |
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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The aggregate direct operating costs incurred during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expenditure for addition to long-lived asset included in determination of segment asset by chief operating decision maker (CODM) or otherwise regularly provided to CODM. Long-lived asset excludes financial instrument, long-term customer relationship of financial institution, mortgage and other servicing rights, deferred policy acquisition cost, and deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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