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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2019
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, 2019 each year from 2020 through 2024 as follows:
Year
Expected Amortization Expense Related to Capitalized Software
2020
$
48,395

2021
48,117

2022
33,272

2023
14,489

2024
14,489
Schedule of Calculation of Basic and Diluted Earnings Per Share
The calculations of basic and diluted earnings per share for 2019, 2018 and 2017 are:
 
 
2019
 
2018
 
2017
Net income
 
$
501,426

 
$
505,868

 
$
404,389

Shares used to compute basic earnings per common share
 
151,540,000

 
156,579,000

 
158,177,000

Dilutive effect of stock options
 
3,361,000

 
4,653,000

 
4,092,000

Shares used to compute diluted earnings per common share
 
154,901,000

 
161,232,000

 
162,269,000

Basic earnings per common share
 
$
3.31

 
$
3.23

 
$
2.56

Diluted earnings per common share
 
$
3.24

 
$
3.14

 
$
2.49