How does SEI make money?

Could you please elaborate on how SEI generates revenue? I'm particularly interested in understanding the core business model and any key revenue streams that contribute to its financial success. Could you also provide some insights into the profitability of SEI's operations and any strategic partnerships or investments that might impact its bottom line? Additionally, I'm curious about any potential risks or challenges that could affect SEI's ability to maintain or grow its revenue streams. Thank you for your time and assistance in addressing these questions.