Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Summary of financial assets measured at fair value on a recurring basis

The following table summarizes the Company’s assets and liabilities at fair value on a recurring basis at December 31, 2021 and 2020 by level within the fair-value hierarchy. These assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement (in thousands):

	At December 31, 2021								At December 31, 2020
							Total Fair								Total Fair
	Level 1		Level 2		Level 3		Value		Level 1		Level 2		Level 3		Value
Assets:
Cash equivalents	$	234,763	$	—	$	—	$	234,763	$	262,309	$	—	$	—	$	262,309
Total Assets	$	234,763	$	—	$	—	$	234,763	$	262,309	$	—	$	—	$	262,309
Liabilities:
Contingent consideration, current	$	—	$	—	$	—	$	—	$	—	$	—	$	2,459	$	2,459
Contingent consideration, non-current	—		—		—		—		—		—		—		—
Total Liabilities	$	—	$	—	$	—	$	—	$	—	$	—	$	2,459	$	2,459

Schedule of changes in fair value of contingent consideration obligation

The following table summarizes the changes in the fair value of the contingent consideration obligation (in thousands):

	Year Ended December 31,
	2021		2020
Fair value, at beginning of year	$	2,459	$	4,777
Cash payments	(2,500)		(2,500)
Additions and changes in fair value	41		182
Fair value, at end of year	$	—	$	2,459

Summary of changes in the allowance for doubtful accounts and sales allowances

The following table summarizes the changes in the allowance for doubtful accounts and sales allowances (in thousands):

	Year Ended December 31,
	2021		2020		2019
Allowances, at beginning of year	$	7,147	$	6,591	$	3,342
Charged as a reduction of revenue	4,205		8,365		11,566
Charged to bad debt expense in general and administrative expenses	528		2,984		1,432
Write-offs, net of recoveries	(8,781)		(10,793)		(9,749)
Allowances, at end of year	$	3,099	$	7,147	$	6,591

Schedule of expected amortization expense with respect to capitalized software costs

Expected amortization expense with respect to capitalized software costs at December 31, 2021 for each of the years through December 31, 2024 is as follows (in thousands):

Years ended December 31,
2022	$	9,474
2023	5,735
2024	2,106
Total amortization expense	$	17,315

Expected amortization expense with respect to intangible assets at December 31, 2021 is as follows (in thousands): 

Years ended December 31,
2022	$	1,650
2023	1,650
2024	1,650
Total amortization expense	$	4,950