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- Definition

Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Subject to Repayment

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- Definition

Business Combination, Service Period Following Acquisition Subject to Repayment

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grant Date Weighted Average Fair Value, Granted

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Number of shares of equity interest issued or issuable by acquirer as part of consideration transferred in business combination.

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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.

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Share-Based and Other Deferred Compensation - Acquisition-related Awards Additional Information (Details) £ in Thousands, shares in Thousands, $ in Thousands			3 Months Ended		6 Months Ended		12 Months Ended
	Oct. 01, 2025 GBP (£) shares	Oct. 01, 2025 USD ($) shares	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) shares	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($) shares
Class A \| Robey Warshaw
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Consideration	£ 71,250	$ 95,767
Shares Issued as Consideration for Acquisitions \| shares	275	275
Acquisition-related Awards \| Robey Warshaw
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repayment period					4 years
Deferred Compensation Arrangement Compensation Expense			$ 6,113		$ 12,256
Acquisition-related Awards Performance Period					5 years
Acquisition-related Awards \| Class A \| Robey Warshaw
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Consideration Subject to Repayment	£ 62,700	$ 84,275
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Vesting Period					4 years
Restricted Stock Units (RSUs) [Member] \| Third Amended Two Thousand Sixteen Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Issued During Period (in shares) \| shares					1,693
Compensation Expense			130,516	$ 100,068	$ 234,353	$ 180,132
Restricted Stock Units (RSUs) [Member] \| Third Amended Two Thousand Sixteen Stock Incentive Plan \| Robey Warshaw
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Issued During Period (in shares) \| shares							46
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grant Date Weighted Average Fair Value, Granted							$ 15,419
Award Vesting Period					4 years
Compensation Expense			$ 825		$ 1,641