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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, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
REVENUE
Services and Support									$ 978,421	$ 917,548	$ 870,831
Processing									558,182	513,569	483,815
REVENUE	$ 417,229	$ 384,684	$ 374,756	$ 359,934	$ 383,769	$ 353,767	$ 348,553	$ 345,028	1,536,603	1,431,117	1,354,646
Cost of Revenue	235,682	221,592	211,653	204,715	219,398	206,727	198,146	194,763	873,642	819,034	773,651
Research and Development	24,406	22,591	22,414	20,929	23,340	20,801	20,873	19,739	90,340	84,753	81,234
Selling, General and Administrative	48,615	44,185	45,613	43,733	43,103	39,794	40,892	39,109	182,146	162,898	157,593
Gain on Disposal of Businesses	0	0	189	1,705	1,020	2,286	(36)	0	1,894	3,270	19,491
Total Expenses	308,703	288,368	279,491	267,672	284,821	265,036	259,947	253,611	1,144,234	1,063,415	992,987
OPERATING INCOME	108,526	96,316	95,265	92,262	98,948	88,731	88,606	91,417	392,369	367,702	361,659
Total Interest Income (Expense)	(595)	(604)	(104)	(42)	(354)	(236)	(124)	(34)	(1,345)	(748)	(1,123)
INCOME BEFORE INCOME TAXES	$ 107,931	$ 95,712	$ 95,161	$ 92,220	$ 98,594	$ 88,495	$ 88,482	$ 91,383	391,024	366,954	360,536
Core Segment [Member]
REVENUE
Services and Support									527,722	477,985	427,882
Processing									27,565	25,013	21,781
REVENUE									555,287	502,998	449,663
Cost of Revenue									248,215	226,475	209,688
SEGMENT INCOME									307,072	276,523	239,975
Payments [Member]
REVENUE
Services and Support									48,407	45,980	45,270
Processing									468,935	435,645	414,509
REVENUE									517,342	481,625	459,779
Cost of Revenue									244,718	224,214	215,650
SEGMENT INCOME									272,624	257,411	244,129
Complementary [Member]
REVENUE
Services and Support									350,495	332,958	302,258
Processing									61,526	52,787	47,358
REVENUE									412,021	385,745	349,616
Cost of Revenue									169,793	160,016	148,906
SEGMENT INCOME									242,228	225,729	200,710
Corporate and Other [Member]
REVENUE
Services and Support									51,797	60,625	95,421
Processing									156	124	167
REVENUE									51,953	60,749	95,588
Cost of Revenue									210,916	208,329	199,407
SEGMENT INCOME									$ (158,963)	$ (147,580)	$ (103,819)