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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, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE	$ 393,509	$ 380,364	$ 386,275	$ 392,543	$ 378,256	$ 374,048	$ 357,209	$ 361,284	$ 1,552,691	$ 1,470,797	$ 1,388,290
Cost of Revenue	240,040	235,594	227,284	220,112	223,606	218,517	207,100	203,915	923,030	853,138	805,855
Research and Development	24,920	23,442	23,990	24,026	24,406	22,591	22,414	20,929	96,378	90,340	84,753
Selling, General and Administrative	49,131	44,887	46,797	45,183	45,294	42,234	43,094	41,088	185,998	171,710	159,235
Gain on Disposal of Businesses					0	0	189	1,705	0	1,894	3,270
Total Expenses	314,091	303,923	298,071	289,321	293,306	283,342	272,419	264,227	1,205,406	1,113,294	1,046,573
OPERATING INCOME	79,418	76,441	88,204	103,222	84,950	90,706	84,790	97,057	347,285	357,503	341,717
Total Interest Income (Expense)	(229)	(69)	104	144	(595)	(604)	(104)	(42)	(50)	(1,345)	(748)
INCOME BEFORE INCOME TAXES	$ 79,189	$ 76,372	$ 88,308	$ 103,366	$ 84,355	$ 90,102	$ 84,686	$ 97,015	347,235	356,158	340,969
Core Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									534,429	509,821	477,605
Cost of Revenue									243,989	232,868	219,440
SEGMENT INCOME									290,440	276,953	258,165
Payments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									548,319	508,331	471,988
Cost of Revenue									273,261	245,269	222,685
SEGMENT INCOME									275,058	263,062	249,303
Complementary [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									418,215	395,419	375,811
Cost of Revenue									175,737	163,905	155,084
SEGMENT INCOME									242,478	231,514	220,727
Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									51,728	57,226	62,886
Cost of Revenue									230,043	211,096	208,646
SEGMENT INCOME									(178,315)	(153,870)	(145,760)
License and Service [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									958,489	920,739	881,735
License and Service [Member] \| Core Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									506,007	482,216	452,712
License and Service [Member] \| Payments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									52,756	47,641	43,477
License and Service [Member] \| Complementary [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									348,631	333,812	322,784
License and Service [Member] \| Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									51,095	57,070	62,762
Processing [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									594,202	550,058	506,555
Processing [Member] \| Core Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									28,422	27,605	24,893
Processing [Member] \| Payments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									495,563	460,690	428,511
Processing [Member] \| Complementary [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									69,584	61,607	53,027
Processing [Member] \| Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
REVENUE									$ 633	$ 156	$ 124