Revenues and Contract Balances - Narrative (Details) - USD ($)	3 Months Ended	9 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Change In Accounting Estimate [Line Items]
Income before income taxes	$ 151,252,000	$ 153,636,000	$ 444,355,000	$ 371,200,000
Diluted earnings per share (in dollars per share)	$ 5.00	$ 5.13	$ 15.21	$ 12.63
EAC Adjustments
Change In Accounting Estimate [Line Items]
Income before income taxes	$ 3,400,000	$ 7,500,000	$ 11,100,000	$ 24,500,000
Diluted earnings per share (in dollars per share)	$ 0.11	$ 0.25	$ 0.37	$ 0.81
Revenue from previously satisfied performance obligations	$ 0	$ 0	$ 0	$ 0

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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