Financial instruments fair value (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Fair value, assets and liabilities measured on recurring basis

The fair value of these financial instruments were as follows:

	December 31, 2023
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Cash equivalents:
Money market funds	$	151,209	$	—	$	—	$	151,209
Total cash equivalents	$	151,209	$	—	$	—	$	151,209

	December 31, 2022
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Cash equivalents:
Money market funds	$	132,306	$	—	$	—	$	132,306
Total cash equivalents	$	132,306	$	—	$	—	$	132,306
Liabilities
Contingent consideration:
Accrued liabilities	$	—	$	—	$	6,206	$	6,206
Total contingent consideration	$	—	$	—	$	6,206	$	6,206

Summary of changes in contingent consideration classified as Level 3

The following table provides a summary of the changes in contingent consideration, which is classified as Level 3:

	Years Ended December 31,
	2023		2022		2021
	(in thousands)
Balance, beginning of period	$	6,206	$	10,100	$	8,200
Additions	—		—		359
Total (gains) losses included in:
Net loss	—		694		6,037
Payments	(6,206)		(4,588)		(4,206)
Other	—		—		(290)
Balance, end of period	$	—	$	6,206	$	10,100

Schedule of carrying values and estimated fair values of debt instruments

The following table presents the net carrying value and estimated fair value of the 2026 Notes, which are not recorded at fair value in the consolidated balance sheets:

	December 31, 2023				December 31, 2022
	Net Carrying Value		Estimated Fair Value		Net Carrying Value		Estimated Fair Value
	(in thousands)
2026 Notes	$	366,999	$	319,283	$	364,505	$	308,504