Contingencies - Narrative (Details) $ in Millions	Mar. 31, 2025 USD ($) case loan	Mar. 31, 2024 USD ($) loan
Loss Contingency [Abstract]
Accrued penalty	$ 27.3
Number of cases \| case	5
Warranty repurchase demands unpaid principal balance	$ 25.5	$ 25.3
Warranty repurchase demands number of loans \| loan	96	75

Amount of loss contingency liability.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-10

Name:	us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant