Corporate Investments and Funds Held For Clients - Summary of Unrealized Losses and Fair Values of Available-for-Sale Securities that have been in Unrealized Loss Position for Period of Less than and Greater than 12 Months (Details) - Available-for-sale Securities [Member] - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Corporate Investments And Funds Held For Clients [Line Items]
Securities in unrealized loss position for less than twelve months, Gross unrealized losses	$ (1,764)	$ (4,757)
Securities in unrealized loss position for less than twelve months, Fair value	97,973	169,610
Securities in unrealized loss position for more than twelve months, Gross unrealized losses	(1,944)
Securities in unrealized loss position for more than twelve months, Fair value	72,812
Gross unrealized losses	(3,707)	(4,757)
Fair value	170,785	169,610
U.S. Treasury Securities [Member]
Corporate Investments And Funds Held For Clients [Line Items]
Securities in unrealized loss position for less than twelve months, Gross unrealized losses	(1,764)	(4,757)
Securities in unrealized loss position for less than twelve months, Fair value	97,973	169,610
Securities in unrealized loss position for more than twelve months, Gross unrealized losses	(1,944)
Securities in unrealized loss position for more than twelve months, Fair value	72,812
Gross unrealized losses	(3,707)	(4,757)
Fair value	$ 170,785	$ 169,610