Quarterly Financial Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
REVENUE
License	$ 574	$ 603	$ 245	$ 762	$ 1,490	$ 1,531	$ 979	$ 1,366	$ 2,184	$ 5,366	$ 5,652
Support and service	300,359	276,100	273,242	262,630	293,652	257,939	251,095	240,115	1,112,331	1,042,801	948,893
Hardware	14,233	14,731	15,356	14,338	16,184	14,447	15,174	13,552	58,658	59,357	63,122
Total revenue	315,166	291,434	288,843	277,730	311,326	273,917	267,248	255,033	1,173,173	1,107,524	1,017,667
COST OF SALES
Cost of license	148	227	188	345	333	228	226	73	908	860	2,291
Cost of support and service	168,007	162,824	154,769	149,156	164,943	154,662	142,353	139,662	634,756	601,620	550,570
Cost of hardware	10,892	11,008	10,867	10,941	11,968	10,581	10,523	10,578	43,708	43,650	45,983
Total cost of sales	179,047	174,059	165,824	160,442	177,244	165,471	153,102	150,313	679,372	646,130	598,844
GROSS PROFIT	136,119	117,375	123,019	117,288	134,082	108,446	114,146	104,720	493,801	461,394	418,823
OPERATING EXPENSES
Selling and marketing	22,483	21,719	20,503	20,738	21,448	20,466	19,405	19,492	85,443	80,811	76,236
Research and development	17,447	17,486	16,142	15,673	16,870	15,996	15,691	14,645	66,748	63,202	60,876
General and administrative	13,301	13,629	12,132	14,250	13,915	11,950	27,181	13,578	53,312	66,624	50,119
Total operating expenses	53,231	52,834	48,777	50,661	52,233	48,412	62,277	47,715	205,503	210,637	187,231
OPERATING INCOME	82,888	64,541	74,242	66,627	81,849	60,034	51,869	57,005	288,298	250,757	231,592
INTEREST INCOME (EXPENSE)
Interest income	33	84	129	131	130	133	190	187	377	640	1,176
Interest expense	(296)	(262)	(267)	(280)	(2,701)	(1,034)	(1,261)	(1,341)	(1,105)	(6,337)	(5,743)
Total interest income (expense)	(263)	(178)	(138)	(149)	(2,571)	(901)	(1,071)	(1,154)	(728)	(5,697)	(4,567)
INCOME BEFORE INCOME TAXES	82,625	64,363	74,104	66,478	79,278	59,133	50,798	55,851	287,570	245,060	227,025
PROVISION FOR INCOME TAXES	30,096	21,757	25,744	23,258	26,030	16,633	14,896	19,891	100,855	77,450	74,985
NET INCOME	$ 52,529	$ 42,606	$ 48,360	$ 43,220	$ 53,248	$ 42,500	$ 35,902	$ 35,960	$ 186,715	$ 167,610	$ 152,040
Earnings Per Share
Diluted earnings per share	$ 0.62	$ 0.50	$ 0.56	$ 0.50	$ 0.62	$ 0.49	$ 0.41	$ 0.42	$ 2.19	$ 1.94	$ 1.74
Diluted weighted average shares outstanding	84,276	85,467	85,986	85,854	86,525	86,705	86,639	86,605	85,396	86,619	87,287
Basic earnings per share	$ 0.63	$ 0.50	$ 0.57	$ 0.51	$ 0.62	$ 0.49	$ 0.42	$ 0.42	$ 2.20	$ 1.95	$ 1.76
Basic weighted average shares outstanding	83,740	84,981	85,450	85,294	85,845	86,120	86,084	86,109	84,866	86,040	86,599
Banking Systems and Services [Member]
REVENUE
License									$ 1,514	$ 4,895	$ 4,984
Support and service									853,500	794,433	729,779
Hardware									42,657	41,052	45,051
Total revenue									897,671	840,380	779,814
COST OF SALES
Cost of license									555	765	1,938
Cost of support and service									492,777	461,370	422,672
Cost of hardware									31,866	29,936	32,123
Total cost of sales									525,198	492,071	456,733
GROSS PROFIT									372,473	348,309	323,081
Credit Union Systems and Services [Member]
REVENUE
License									670	471	668
Support and service									258,831	248,368	219,114
Hardware									16,001	18,305	18,071
Total revenue									275,502	267,144	237,853
COST OF SALES
Cost of license									353	95	353
Cost of support and service									141,979	140,250	127,898
Cost of hardware									11,842	13,714	13,860
Total cost of sales									154,174	154,059	142,111
GROSS PROFIT									121,328	113,085	95,742
Scenario, Previously Reported [Member]
REVENUE
License	$ 13,070	$ 15,267	$ 12,893	$ 11,779	$ 12,063	$ 16,681	$ 13,210	$ 12,864	53,009	54,818	54,811
Support and service	283,635	270,931	274,276	269,544	269,901	250,415	250,310	244,585	1,098,386	1,015,211	909,176
Hardware	14,233	14,731	15,356	14,338	16,184	14,447	15,174	13,552	58,658	59,357	63,122
Total revenue	310,938	300,929	302,525	295,661	298,148	281,543	278,694	271,001	1,210,053	1,129,386	1,027,109
COST OF SALES
Cost of license	747	1,167	947	1,412	1,136	1,360	1,251	1,077	4,273	4,824	6,111
Cost of support and service	166,744	164,223	157,893	154,583	160,807	155,012	144,683	143,418	643,443	603,920	551,285
Cost of hardware	10,892	11,008	10,867	10,941	11,968	10,581	10,523	10,578	43,708	43,650	45,983
Total cost of sales	178,383	176,398	169,707	166,936	173,911	166,953	156,457	155,073	691,424	652,394	603,379
GROSS PROFIT	132,555	124,531	132,818	128,725	124,237	114,590	122,237	115,928	518,629	476,992	423,730
OPERATING EXPENSES
Selling and marketing	22,007	22,034	21,071	21,458	20,558	20,935	19,937	20,189	86,570	81,619	76,500
Research and development	17,447	17,486	16,142	15,673	16,870	15,996	15,691	14,645	66,748	63,202	60,876
General and administrative	13,301	13,629	12,132	14,250	13,915	11,950	27,181	13,578	53,312	66,624	50,119
Total operating expenses	52,755	53,149	49,345	51,381	51,343	48,881	62,809	48,412	206,630	211,445	187,495
OPERATING INCOME	79,800	71,382	83,473	77,344	72,894	65,709	59,428	67,516	311,999	265,547	236,235
INTEREST INCOME (EXPENSE)
Interest income	33	84	129	131	130	133	190	187	377	640	1,176
Interest expense	(296)	(262)	(267)	(280)	(2,701)	(1,034)	(1,261)	(1,341)	(1,105)	(6,337)	(5,743)
Total interest income (expense)	(263)	(178)	(138)	(149)	(2,571)	(901)	(1,071)	(1,154)	(728)	(5,697)	(4,567)
INCOME BEFORE INCOME TAXES	79,537	71,204	83,335	77,195	70,323	64,808	58,357	66,362	311,271	259,850	231,668
PROVISION FOR INCOME TAXES	28,928	24,447	29,353	27,407	22,654	18,812	17,852	23,887	110,135	83,205	76,684
NET INCOME	$ 50,609	$ 46,757	$ 53,982	$ 49,788	$ 47,669	$ 45,996	$ 40,505	$ 42,475	$ 201,136	$ 176,645	$ 154,984
Earnings Per Share
Diluted earnings per share	$ 0.60	$ 0.55	$ 0.63	$ 0.58	$ 0.55	$ 0.53	$ 0.47	$ 0.49	$ 2.36	$ 2.04	$ 1.78
Diluted weighted average shares outstanding	84,276	85,467	85,986	85,854	86,525	86,705	86,639	86,605	85,396	86,619	87,287
Basic earnings per share	$ 0.60	$ 0.55	$ 0.63	$ 0.58	$ 0.56	$ 0.53	$ 0.47	$ 0.49	$ 2.37	$ 2.05	$ 1.79
Basic weighted average shares outstanding	83,740	84,981	85,450	85,294	85,845	86,120	86,084	86,109	84,866	86,040	86,599
Scenario, Adjustment [Member]
REVENUE
License	$ (12,496)	$ (14,664)	$ (12,648)	$ (11,017)	$ (10,573)	$ (15,150)	$ (12,231)	$ (11,498)	$ (50,825)	$ (49,452)	$ (49,159)
Support and service	16,724	5,169	(1,034)	(6,914)	23,751	7,524	785	(4,470)	13,945	27,590	39,717
Hardware	0	0	0	0	0	0	0	0	0	0	0
Total revenue	4,228	(9,495)	(13,682)	(17,931)	13,178	(7,626)	(11,446)	(15,968)	(36,880)	(21,862)	(9,442)
COST OF SALES
Cost of license	(599)	(940)	(759)	(1,067)	(803)	(1,132)	(1,025)	(1,004)	(3,365)	(3,964)	(3,820)
Cost of support and service	1,263	(1,399)	(3,124)	(5,427)	4,136	(350)	(2,330)	(3,756)	(8,687)	(2,300)	(715)
Cost of hardware	0	0	0	0	0	0	0	0	0	0	0
Total cost of sales	664	(2,339)	(3,883)	(6,494)	3,333	(1,482)	(3,355)	(4,760)	(12,052)	(6,264)	(4,535)
GROSS PROFIT	3,564	(7,156)	(9,799)	(11,437)	9,845	(6,144)	(8,091)	(11,208)	(24,828)	(15,598)	(4,907)
OPERATING EXPENSES
Selling and marketing	476	(315)	(568)	(720)	890	(469)	(532)	(697)	(1,127)	(808)	(264)
Research and development	0	0	0	0	0	0	0	0	0	0	0
General and administrative	0	0	0	0	0	0	0	0	0	0	0
Total operating expenses	476	(315)	(568)	(720)	890	(469)	(532)	(697)	(1,127)	(808)	(264)
OPERATING INCOME	3,088	(6,841)	(9,231)	(10,717)	8,955	(5,675)	(7,559)	(10,511)	(23,701)	(14,790)	(4,643)
INTEREST INCOME (EXPENSE)
Interest income	0	0	0	0	0	0	0	0	0	0	0
Interest expense	0	0	0	0	0	0	0	0	0	0	0
Total interest income (expense)	0	0	0	0	0	0	0	0	0	0	0
INCOME BEFORE INCOME TAXES	3,088	(6,841)	(9,231)	(10,717)	8,955	(5,675)	(7,559)	(10,511)	(23,701)	(14,790)	(4,643)
PROVISION FOR INCOME TAXES	1,168	(2,690)	(3,609)	(4,149)	3,376	(2,179)	(2,956)	(3,996)	(9,280)	(5,755)	(1,699)
NET INCOME	$ 1,920	$ (4,151)	$ (5,622)	$ (6,568)	$ 5,579	$ (3,496)	$ (4,603)	$ (6,515)	$ (14,421)	$ (9,035)	$ (2,944)
Earnings Per Share
Diluted earnings per share	$ 0.02	$ (0.05)	$ (0.07)	$ (0.08)	$ 0.06	$ (0.04)	$ (0.05)	$ (0.08)	$ (0.17)	$ (0.10)	$ (0.03)
Diluted weighted average shares outstanding	84,276	85,467	85,986	85,854	86,525	86,705	86,639	86,605	85,396	86,619	87,287
Basic earnings per share	$ 0.02	$ (0.05)	$ (0.07)	$ (0.08)	$ 0.06	$ (0.04)	$ (0.05)	$ (0.08)	$ (0.17)	$ (0.11)	$ (0.03)
Basic weighted average shares outstanding	83,740	84,981	85,450	85,294	85,845	86,120	86,084	86,109	84,866	86,040	86,599