Operations by Segments and Geographic Areas - Schedule of Disaggregated Revenue by Major Product Classification (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Total revenues	$ 128,787	$ 116,024	$ 252,392	$ 228,389
Subscriptions
Disaggregation of Revenue [Line Items]
Total revenues	108,482	93,398	211,978	183,782
Software
Disaggregation of Revenue [Line Items]
Total revenues	1,153	1,802	2,080	2,779
Professional Services, Maintenance and Other
Disaggregation of Revenue [Line Items]
Total revenues	19,152	20,824	38,334	41,828
Payment Platforms
Disaggregation of Revenue [Line Items]
Total revenues	35,972	27,542	69,779	52,909
Payment Platforms | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	35,972	27,542	69,779	52,909
Payment Platforms | Subscriptions | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	35,721	27,432	69,225	52,712
Payment Platforms | Software | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Payment Platforms | Professional Services, Maintenance and Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	251	110	554	197
Banking Solutions
Disaggregation of Revenue [Line Items]
Total revenues	49,959	44,249	97,640	89,478
Banking Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	49,959	44,249	97,640	89,478
Banking Solutions | Subscriptions | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	43,094	37,298	84,029	75,251
Banking Solutions | Software | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	28	11	105	115
Banking Solutions | Professional Services, Maintenance and Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	6,837	6,940	13,506	14,112
Legal Spend Management
Disaggregation of Revenue [Line Items]
Total revenues	22,456	21,849	44,519	42,399
Legal Spend Management | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	22,456	21,849	44,519	42,399
Legal Spend Management | Subscriptions | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	22,449	21,846	44,509	42,396
Legal Spend Management | Software | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Legal Spend Management | Professional Services, Maintenance and Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	7	3	10	3
Traditional Solutions
Disaggregation of Revenue [Line Items]
Total revenues	15,684	17,178	31,876	34,574
Traditional Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	15,684	17,178	31,876	34,574
Traditional Solutions | Subscriptions | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	6,076	5,615	12,102	11,296
Traditional Solutions | Software | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	437	638	876	1,386
Traditional Solutions | Professional Services, Maintenance and Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total revenues	9,171	10,925	18,898	21,892
Other
Disaggregation of Revenue [Line Items]
Total revenues	4,716	5,206	8,578	9,029
Other | Other
Disaggregation of Revenue [Line Items]
Total revenues	4,716	5,206	8,578	9,029
Other | Subscriptions | Other
Disaggregation of Revenue [Line Items]
Total revenues	1,142	1,207	2,113	2,127
Other | Software | Other
Disaggregation of Revenue [Line Items]
Total revenues	688	1,153	1,099	1,278
Other | Professional Services, Maintenance and Other | Other
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,886	$ 2,846	$ 5,366	$ 5,624