Cash, Cash Equivalents and Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2022

Cash, Cash Equivalents and Marketable Securities [Abstract]

Summary of investments in cash, cash equivalents and marketable securities

The following table summarizes our cash and investments in cash equivalents and marketable securities held by investment managers and overnight investments:

	March 31, 2022						December 31, 2021
(in thousands)	Cash & Cash Equivalents		Marketable Securities		Total		Cash & Cash Equivalents		Marketable Securities		Total
Overnight holdings	$	566,030	$	—	$	566,030	$	490,154	$	—	$	490,154
Investment holdings	13,066		32,610		45,676		88,951		31,791		120,742
Cash in demand accounts	26,736		—		26,736		47,331		—		47,331
Outstanding checks	(29,178)		—		(29,178)		(50,624)		—		(50,624)
Total	$	576,654	$	32,610	$	609,264	$	575,812	$	31,791	$	607,603