Revenue Recognition (Revenue Disaggregated By Major Revenue Streams) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 138,194	$ 133,968	$ 418,176	$ 394,822
Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	17,904	15,876	50,191	46,314
Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	120,290	118,092	367,985	348,508
Processing Fees [Member]
Disaggregation of Revenue [Line Items]
Revenue	35,035	33,979	105,507	102,817
Processing Fees [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	6,353	6,438	18,261	19,696
Processing Fees [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	28,682	27,541	87,246	83,121
Telecom Products And Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	87,668	83,427	267,033	241,365
Telecom Products And Services [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	83	7	176	13
Telecom Products And Services [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	87,585	83,420	266,857	241,352
Account Holder Fees [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,560	1,419	4,430	4,240
Account Holder Fees [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,560	1,419	4,430	4,240
Account Holder Fees [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Lending Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	6,229	5,052	17,188	14,332
Lending Revenue [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	6,229	5,052	17,188	14,332
Lending Revenue [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,803	4,620	7,074	16,641
Technology Products [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	8	298	39	584
Technology Products [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,795	4,322	7,035	16,057
Interest From Customers [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,553	1,555	4,526	4,254
Interest From Customers [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Interest From Customers [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,553	1,555	4,526	4,254
Insurance Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,178	2,584	8,686	7,118
Insurance Revenue [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,178	2,584	8,686	7,118
Insurance Revenue [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,168	1,332	3,732	4,055
Other [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	493	78	1,411	331
Other [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	675	1,254	2,321	3,724
South Africa [Member]
Disaggregation of Revenue [Line Items]
Revenue	131,469	128,438	398,690	378,057
South Africa [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	17,904	15,876	50,191	46,314
South Africa [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	113,565	112,562	348,499	331,743
South Africa [Member] \| Processing Fees [Member]
Disaggregation of Revenue [Line Items]
Revenue	33,508	32,678	101,164	98,871
South Africa [Member] \| Processing Fees [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	6,353	6,438	18,261	19,696
South Africa [Member] \| Processing Fees [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	27,155	26,240	82,903	79,175
South Africa [Member] \| Telecom Products And Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	82,567	79,315	252,176	228,873
South Africa [Member] \| Telecom Products And Services [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	83	7	176	13
South Africa [Member] \| Telecom Products And Services [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	82,484	79,308	252,000	228,860
South Africa [Member] \| Technology Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,759	4,552	6,940	16,455
South Africa [Member] \| Technology Products [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	8	298	39	584
South Africa [Member] \| Technology Products [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,751	4,254	6,901	15,871
South Africa [Member] \| Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,115	1,283	3,580	3,914
South Africa [Member] \| Other [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	493	78	1,411	331
South Africa [Member] \| Other [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	622	1,205	2,169	3,583
Rest Of World [Member]
Disaggregation of Revenue [Line Items]
Revenue	6,725	5,530	19,486	16,765
Rest Of World [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Rest Of World [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	6,725	5,530	19,486	16,765
Rest Of World [Member] \| Processing Fees [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,527	1,301	4,343	3,946
Rest Of World [Member] \| Processing Fees [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Rest Of World [Member] \| Processing Fees [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,527	1,301	4,343	3,946
Rest Of World [Member] \| Telecom Products And Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,101	4,112	14,857	12,492
Rest Of World [Member] \| Telecom Products And Services [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Rest Of World [Member] \| Telecom Products And Services [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	5,101	4,112	14,857	12,492
Rest Of World [Member] \| Technology Products [Member]
Disaggregation of Revenue [Line Items]
Revenue	44	68	134	186
Rest Of World [Member] \| Technology Products [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Rest Of World [Member] \| Technology Products [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	44	68	134	186
Rest Of World [Member] \| Other [Member]
Disaggregation of Revenue [Line Items]
Revenue	53	49	152	141
Rest Of World [Member] \| Other [Member] \| Consumer Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Rest Of World [Member] \| Other [Member] \| Merchant Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 53	$ 49	$ 152	$ 141