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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Schedule of Amortization Expense Related to the SEI Wealth Platform
The Company currently expects to recognize amortization expense related to all capitalized software development costs placed into service as of December 31, 2022 each year from 2023 through 2027 as follows:
YearExpected Amortization Expense Related to Capitalized Software
2023$24,385 
202424,385 
202524,385 
202623,378 
202721,761 
Schedule of Calculation of Basic and Diluted Earnings Per Share
The calculations of basic and diluted earnings per share for 2022, 2021 and 2020 are:
 202220212020
Net income$475,467 $546,593 $447,286 
Shares used to compute basic earnings per common share136,071,000 141,216,000 146,709,000 
Dilutive effect of equity awards1,352,000 2,096,000 2,294,000 
Shares used to compute diluted earnings per common share137,423,000 143,312,000 149,003,000 
Basic earnings per common share$3.49 $3.87 $3.05 
Diluted earnings per common share$3.46 $3.81 $3.00