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Reportable Segment Information Reconciliation of Operating Profit by Segment to Consolidated (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE	$ 410,537	$ 429,406	$ 419,119	$ 438,005	$ 393,509	$ 380,364	$ 386,275	$ 392,543	$ 1,697,067	$ 1,552,691	$ 1,470,797
Cost of Revenue	254,835	258,571	249,267	245,791	240,040	235,594	227,284	220,112	1,008,464	923,030	853,138
Research and Development	29,902	28,308	27,187	24,591	24,920	23,442	23,990	24,026	109,988	96,378	90,340
Selling, General and Administrative	49,002	50,589	48,961	49,436	49,131	44,887	46,797	45,183	197,988	185,998	171,710
Gain on Disposal of Businesses									0	0	1,894
Total Expenses	333,739	337,468	325,415	319,818	314,091	303,923	298,071	289,321	1,316,440	1,205,406	1,113,294
OPERATING INCOME	76,798	91,938	93,704	118,187	79,418	76,441	88,204	103,222	380,627	347,285	357,503
Total Interest Income (Expense)	(125)	32	190	352	(229)	(69)	104	144	449	(50)	(1,345)
INCOME BEFORE INCOME TAXES	$ 76,673	$ 91,970	$ 93,894	$ 118,539	$ 79,189	$ 76,372	$ 88,308	$ 103,366	381,076	347,235	356,158
Core Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									582,166	536,032	509,821
Cost of Revenue									252,878	243,989	232,868
SEGMENT INCOME									329,288	292,043	276,953
Payments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									597,693	549,330	508,331
Cost of Revenue									319,739	273,261	245,269
SEGMENT INCOME									277,954	276,069	263,062
Complementary [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									463,349	415,601	395,419
Cost of Revenue									191,577	175,737	163,905
SEGMENT INCOME									271,772	239,864	231,514
Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									53,859	51,728	57,226
Cost of Revenue									244,270	230,043	211,096
SEGMENT INCOME									(190,411)	(178,315)	(153,870)
License and Service [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									1,051,451	958,489	920,739
License and Service [Member] \| Core Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									550,794	507,610	482,216
License and Service [Member] \| Payments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									66,920	52,756	47,641
License and Service [Member] \| Complementary [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									380,842	347,028	333,812
License and Service [Member] \| Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									52,895	51,095	57,070
Processing [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									645,616	594,202	550,058
Processing [Member] \| Core Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									31,372	28,422	27,605
Processing [Member] \| Payments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									530,773	496,574	460,690
Processing [Member] \| Complementary [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									82,507	68,573	61,607
Processing [Member] \| Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									$ 964	$ 633	$ 156