Stockholder's Equity - Dividends and distributions (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
Mar. 31, 2026	Sep. 30, 2025
Stockholder's Equity (Details) [Line Items]
Dividends declared (in dollars per share)	$ 0.245
Common stock dividend declared (in dollars per share)		$ 0.245
Class A common stock
Stockholder's Equity (Details) [Line Items]
Paid dividends	$ 8.6

Stockholder's Equity (Details) [Line Items]

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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

+ Details

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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- Definition

Amount of paid and unpaid paid-in-kind dividends (PIK) declared for classes of stock, for example, but not limited to, common and preferred.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-SubTopic 405
-Topic 942
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477787/942-405-45-2

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