Segment Information - Sales Details of Customers Locations in Four Geographic Regions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Information
Revenue	$ 63,366	$ 64,843
Cost of goods sold	16,275	17,448
Gross profit	$ 47,091	$ 47,395
Gross margin	74.00%	73.00%
Sales and marketing	$ 11,457	$ 12,927
Research and development	7,928	8,259
Other segment items	10,524	12,099
Operating income (loss)	17,182	14,110
Interest income, net	692	101
Other income (expense), net	(9)	291
Income before income taxes	17,865	14,502
Depreciation and amortization of intangible assets	2,129	2,082
Restructuring and other related charges	421	1,497
Security Solutions
Segment Information
Revenue	47,713	50,429
Depreciation and amortization of intangible assets	200
Restructuring and other related charges	200	1,100
Digital Agreements
Segment Information
Revenue	15,653	14,414
Depreciation and amortization of intangible assets	1,700	1,600
Restructuring and other related charges	200	100
Operating Segments | Security Solutions
Segment Information
Revenue	47,713	50,429
Cost of goods sold	11,628	12,926
Gross profit	$ 36,085	$ 37,503
Gross margin	76.00%	74.00%
Sales and marketing	$ 6,872	$ 6,544
Research and development	4,919	4,000
Other segment items	134	1,081
Operating income (loss)	24,160	25,878
Operating Segments | Digital Agreements
Segment Information
Revenue	15,653	14,414
Cost of goods sold	4,647	4,522
Gross profit	$ 11,006	$ 9,892
Gross margin	70.00%	69.00%
Sales and marketing	$ 3,402	$ 5,230
Research and development	3,006	4,231
Other segment items	1,231	696
Operating income (loss)	3,367	(265)
Corporate And Reconciling Items
Segment Information
Revenue	0	0
Cost of goods sold	0	0
Gross profit	0	0
Sales and marketing	1,183	1,153
Research and development	3	28
Other segment items	9,159	10,322
Operating income (loss)	$ (10,345)	$ (11,503)