Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping

The change in the marketable securities balance is as follows (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020
Beginning Balance	$	124,726	$	94,727
Additional purchases	35,524		11,757
Change in fair value measurement	33,432		6,132
Foreign currency translation adjustment	(9,229)		10,139
Dividend reinvestment, net of tax	2,445		1,971
Ending Balance	$	186,898	$	124,726