Significant Transactions - Distinguished Programs (Details) - USD ($) $ in Millions	Sep. 02, 2025	Sep. 30, 2025	Sep. 01, 2025
Distinguished
Other Significant Transactions [Line Items]
Basic units outstanding percentage	31.40%
Subsidiary - Distinguished Managing General Agent
Other Significant Transactions [Line Items]
Basic ownership	55.50%	55.50%
Business combination, basic ownership interest acquired, percentage	1.70%		1.40%
Ownership percentage, fully diluted	43.60%	43.60%
Subsidiary, ownership percentage economic interest falls	50.00%
Subsidiary - Distinguished Managing General Agent | Distinguished Management
Other Significant Transactions [Line Items]
Ownership percentage, fully diluted	24.70%
Ownership percentage of basic units outstanding	4.20%
Distinguished Transaction
Other Significant Transactions [Line Items]
Business combination, consideration transferred	$ 224.3
Business combination, consideration transferred, liabilities incurred	$ 50.0
Percentage of voting interests acquired			51.00%
Payments to acquire interest in subsidiaries and affiliates, additional contribution		$ 131.2
Business combination, right to purchase units	1.35
Assets and goodwill acquired	$ 726.2
Goodwill	595.4
Liabilities acquired	231.7
Debt acquired	100.6
Redeemable noncontrolling interest	133.2
Nonredeemable noncontrolling interest	74.8
Transaction costs	$ 6.8