Amount of expenditure for addition to long-lived assets included in determination of segment assets by chief operating decision maker (CODM) or otherwise regularly provided to CODM. Excludes expenditure for addition to financial instrument, long-term customer relationship of financial institution, mortgage and other servicing rights, deferred policy acquisition cost, and deferred tax assets.

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Name:	us-gaap_SegmentExpenditureAdditionToLongLivedAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Segment - Narrative (Details) $ in Millions	12 Months Ended
Segment - Narrative (Details) $ in Millions	Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	1
Reportable segment
Segment Reporting Information [Line Items]
Capital expenditures \| $	$ 0.6	$ 1.4	$ 21.0
Customer Concentration Risk \| Revenue Benchmark \| One Customer In United States
Segment Reporting Information [Line Items]
Percentage of revenue	73.00%
Customer Concentration Risk \| Revenue Benchmark \| One Customer In China
Segment Reporting Information [Line Items]
Percentage of revenue	27.00%
Customer Concentration Risk \| Revenue Benchmark \| One Customer In United Kingdom
Segment Reporting Information [Line Items]
Percentage of revenue			100.00%