Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2022

Accounting Policies [Abstract]

Schedule of Accounts Receivable, Allowance for Credit Losses

The following table summarizes changes in the allowance for expected credit losses for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2022		2021		2022
Balance at beginning of period	$	1,778	$	1,842	$	1,861	$	2,949
Cumulative effect of accounting change upon adoption of CECL	—		—		—		254
Additions	417		351		496		659
Write-offs, net of recoveries	(16)		(22)		(172)		(1,691)
Foreign currency translation adjustment	1		(10)		(5)		(10)
Balance at end of period	$	2,180	$	2,161	$	2,180	$	2,161

Summary of Corporate Technology and Production Systems Expense

The following table sets forth expenses included in each category of corporate technology and production systems for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2022		2021		2022
Corporate information technology	$	4,937	$	6,290	$	9,489	$	12,413
Development of platform and product initiatives	3,740		4,115		7,336		8,364
Production support and maintenance	1,321		2,134		3,526		4,314
Total production systems	5,061		6,249		10,862		12,678
Corporate technology and production systems	$	9,998	$	12,539	$	20,351	$	25,091