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Summary of Significant Accounting Policies - Schedule of Ownership Interest by Other Entities (Details) - S1 Holdings shares in Thousands	Dec. 31, 2024 shares
Entity A | Common Class A
Noncontrolling Interest [Line Items]
Units (in shares)	73,675
Ownership Percentage	79.80%
Entity B | Common Class B
Noncontrolling Interest [Line Items]
Units (in shares)	18,695
Ownership Percentage	20.20%

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Number of shares issued which are neither cancelled nor held in the treasury.

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