Financial instruments fair value (Tables)

12 Months Ended

Dec. 31, 2021

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, 2021
	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents:
Money market funds	$	146,037	$	—	$	—	$	146,037
Total cash equivalents	$	146,037	$	—	$	—	$	146,037
Contingent consideration:
Accrued liabilities	$	—	$	—	$	4,588	$	4,588
Other liabilities	—		—		5,512		5,512
Total contingent consideration	$	—	$	—	$	10,100	$	10,100

	December 31, 2020
	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents:
Money market funds	$	100,000	$	—	$	—	$	100,000
U.S. Treasuries	25,000		—		—		25,000
Total cash equivalents	$	125,000	$	—	$	—	$	125,000
Contingent consideration:
Other liabilities	$	—	$	—	$	8,200	$	8,200
Total contingent consideration	$	—	$	—	$	8,200	$	8,200

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,
	2021		2020		2019
	(in thousands)
Balance, beginning of period	$	8,200	$	9,200	$	9,000
Additions	359		—		—
Total (gains) losses included in:
Net loss	6,037		(1,000)		200
Payments	(4,206)		—		—
Other (1)	(290)		—		—
Balance, end of period	$	10,100	$	8,200	$	9,200

(1) See Note 5 for more information on the reduction to contingent consideration related to the cmdReporter acquisition.

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 sheet:

	December 31, 2021
	Net Carrying Value		Estimated Fair Value
	(in thousands)
2026 Notes	$	362,031	$	398,044