Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues:
Subscription, transaction, and services	$ 42,508	$ 32,732	$ 120,157	$ 97,440
Reimbursable costs	8,854	8,625	26,112	26,085
Total revenues	51,362	41,357	146,269	123,525
Cost of revenues:
Cost of subscription, transaction, and services	11,255	9,368	32,729	27,981
Cost of reimbursable costs	8,854	8,625	26,112	26,085
Total cost of revenues, excluding depreciation and amortization	20,109	17,993	58,841	54,066
Operating expenses:
Research and development	15,943	13,453	46,922	35,716
Sales and marketing	11,591	10,310	34,030	29,226
General and administrative	19,613	9,838	49,426	32,766
Depreciation and amortization	2,191	1,205	6,218	3,924
Impairment and restructuring	4,636	0	18,520	0
Total operating expenses	53,974	34,806	155,116	101,632
Loss from operations	(22,721)	(11,442)	(67,688)	(32,173)
Other income (expense):
Change in fair value of financial instruments	360	0	122	(9,995)
Interest expense and loss on extinguishment of debt	(15)	(2)	(22)	(2,947)
Other non-operating income	916	277	1,171	521
Total other income (expense)	1,261	275	1,271	(12,421)
Loss before income taxes	(21,460)	(11,167)	(66,417)	(44,594)
Income tax expense (benefit)	(251)	27	(970)	130
Net loss	$ (21,209)	$ (11,194)	$ (65,447)	$ (44,724)
Net loss per common share, basic (in USD per share)	$ (0.13)	$ (0.07)	$ (0.40)	$ (0.29)
Net loss per common share, diluted (in USD per share)	$ (0.13)	$ (0.07)	$ (0.40)	$ (0.29)
Weighted average common shares outstanding, basic (in shares)	164,175	158,316	163,586	154,303
Weighted average common shares outstanding, diluted (in shares)	164,175	158,316	163,586	154,303
Operating segments | Print
Revenues:
Subscription, transaction, and services	$ 4,106	$ 4,367	$ 12,680	$ 13,355
Reimbursable costs	8,854	8,625	26,112	26,085
Total revenues	12,960	12,992	38,792	39,440
Cost of revenues:
Cost of subscription, transaction, and services	1,572	1,706	4,745	5,532
Cost of reimbursable costs	8,854	8,625	26,112	26,085
Total cost of revenues, excluding depreciation and amortization	$ 10,426	$ 10,331	$ 30,857	$ 31,617