Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables present our assets and liabilities measured at fair value on a recurring basis (in thousands):

	Fair Value Measurements on a Recurring Basis
Assets:	Level 1		Level 2		Level 3		Total
Money market accounts as of March 31, 2022	$	639,990	$	—	$	—	$	639,990
Money market accounts as of December 31, 2021	679,278		—		—		679,278
Liabilities:
Subsidiary long-term incentive plan as of March 31, 2022	$	—	$	—	$	3,104	$	3,104
Subsidiary long-term incentive plan as of December 31, 2021	—		—		3,351		3,351

Summary of Fair Value of Level 3 Liability

The following table summarizes the change in fair value of the Level 3 liabilities for the subsidiary long-term incentive plan with significant unobservable inputs (in thousands):

	Three Months Ended March 31,
	2022		2021
Beginning of period balance	$	3,351	$	1,000
Changes in fair value included in earnings	(247)		195
End of period balance	$	3,104	$	1,195