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Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2020

Marketable Securities [Abstract]

Schedule of Available For Sale and Equity Securities

Available For Sale and Equity Securities on the accompanying Consolidated Balance Sheets consist of:

						At December 31, 2020
						Cost						Gross Unrealized Gains						Gross Unrealized (Losses)						Fair Value
Available for sale debt securities						$	91,262					$	2,015					$	—					$	93,277
SEI-sponsored mutual funds						6,866						382						—						7,248
Equities and other mutual funds						4,421						473						—						4,894
						$	102,549					$	2,870					$	—					$	105,419

						At December 31, 2019
						Cost						Gross Unrealized Gains						Gross Unrealized (Losses)						Fair Value
Available for sale debt securities						$	104,193					$	605					$	—					$	104,798
SEI-sponsored mutual funds						7,564						125						(39)						7,650
Equities and other mutual funds						3,637						832						—						4,469
						$	115,394					$	1,562					$	(39)					$	116,917

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- Definition

Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.

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