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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

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, 2020 each year from 2021 through 2025 as follows:

Year			Expected Amortization Expense Related to Capitalized Software
2021			$	52,466
2022			37,621
2023			18,838
2024			18,838
2025			18,838

Schedule of Calculation of Basic and Diluted Earnings Per Share

The calculations of basic and diluted earnings per share for 2020, 2019 and 2018 are:

						2020						2019						2018
Net income						$	447,286					$	501,426					$	505,868
Shares used to compute basic earnings per common share						146,709,000						151,540,000						156,579,000
Dilutive effect of stock options						2,294,000						3,361,000						4,653,000
Shares used to compute diluted earnings per common share						149,003,000						154,901,000						161,232,000
Basic earnings per common share						$	3.05					$	3.31					$	3.23
Diluted earnings per common share						$	3.00					$	3.24					$	3.14

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- Definition

Tabular disclosure of amortization expense of assets, excluding financial assets, that lack physical substance, having a limited useful life.

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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