Quarterly Financial Information (Summary Of Quarterly Financial Information) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended																12 Months Ended
	Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2011		Sep. 30, 2011		Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2011
Revenue	$ 328,609	[1],[2],[3],[4],[5]	$ 315,105	[1],[2],[3],[4],[5]	$ 324,520	[1],[2],[3],[4],[5]	$ 299,851	[1],[2],[3],[4],[5]	$ 302,526	[1],[2],[3],[4],[5]	$ 278,044	[1],[2],[3],[4],[5]	$ 270,403	[1],[2],[3],[4],[5]	$ 256,558	[1],[2],[3],[4],[5]	$ 1,268,085	[6]	$ 1,107,531	[6]	$ 1,007,859	[6]
Gross margin	173,025	[1],[2],[3],[4],[5]	165,488	[1],[2],[3],[4],[5]	172,119	[1],[2],[3],[4],[5]	153,260	[1],[2],[3],[4],[5]	165,338	[1],[2],[3],[4],[5]	152,535	[1],[2],[3],[4],[5]	152,321	[1],[2],[3],[4],[5]	144,416	[1],[2],[3],[4],[5]	663,892		614,610		560,069
Income from operations	54,080	[1],[2],[3],[4],[5]	58,151	[1],[2],[3],[4],[5]	61,591	[1],[2],[3],[4],[5]	53,187	[1],[2],[3],[4],[5]	70,894	[1],[2],[3],[4],[5]	55,947	[1],[2],[3],[4],[5]	54,245	[1],[2],[3],[4],[5]	53,435	[1],[2],[3],[4],[5]	227,010		234,520		210,459
Net income attributable to MICROS Systems, Inc.	$ 42,005	[1],[2],[3],[4],[5]	$ 44,264	[1],[2],[3],[4],[5]	$ 44,086	[1],[2],[3],[4],[5]	$ 41,064	[1],[2],[3],[4],[5]	$ 48,218	[1],[2],[3],[4],[5]	$ 43,247	[1],[2],[3],[4],[5]	$ 38,285	[1],[2],[3],[4],[5]	$ 37,232	[1],[2],[3],[4],[5]	$ 171,418		$ 166,983		$ 144,059
Income from operations per common share: Basic	$ 0.69	[1],[2],[3],[4],[5]	$ 0.74	[1],[2],[3],[4],[5]	$ 0.77	[1],[2],[3],[4],[5]	$ 0.66	[1],[2],[3],[4],[5]	$ 0.88	[1],[2],[3],[4],[5]	$ 0.70	[1],[2],[3],[4],[5]	$ 0.68	[1],[2],[3],[4],[5]	$ 0.66	[1],[2],[3],[4],[5]
Income from operations per common share: Diluted	$ 0.68	[1],[2],[3],[4],[5]	$ 0.72	[1],[2],[3],[4],[5]	$ 0.76	[1],[2],[3],[4],[5]	$ 0.65	[1],[2],[3],[4],[5]	$ 0.86	[1],[2],[3],[4],[5]	$ 0.68	[1],[2],[3],[4],[5]	$ 0.66	[1],[2],[3],[4],[5]	$ 0.65	[1],[2],[3],[4],[5]
Net income per share attributable to MICROS Systems, Inc. common shareholders: Basic	$ 0.54	[1],[2],[3],[4],[5]	$ 0.56	[1],[2],[3],[4],[5]	$ 0.55	[1],[2],[3],[4],[5]	$ 0.51	[1],[2],[3],[4],[5]	$ 0.60	[1],[2],[3],[4],[5]	$ 0.54	[1],[2],[3],[4],[5]	$ 0.48	[1],[2],[3],[4],[5]	$ 0.46	[1],[2],[3],[4],[5]	$ 2.16		$ 2.08		$ 1.78
Net income per share attributable to MICROS Systems, Inc. common shareholders: Diluted	$ 0.53	[1],[2],[3],[4],[5]	$ 0.55	[1],[2],[3],[4],[5]	$ 0.54	[1],[2],[3],[4],[5]	$ 0.50	[1],[2],[3],[4],[5]	$ 0.59	[1],[2],[3],[4],[5]	$ 0.53	[1],[2],[3],[4],[5]	$ 0.47	[1],[2],[3],[4],[5]	$ 0.45	[1],[2],[3],[4],[5]	$ 2.12		$ 2.03		$ 1.74
Maximum [Member]
Stock Prices	$ 46.09	[1],[2],[3],[4],[5]	$ 48.20	[1],[2],[3],[4],[5]	$ 49.95	[1],[2],[3],[4],[5]	$ 53.21	[1],[2],[3],[4],[5]	$ 58.49	[1],[2],[3],[4],[5]	$ 55.76	[1],[2],[3],[4],[5]	$ 52.74	[1],[2],[3],[4],[5]	$ 52.24	[1],[2],[3],[4],[5]
Minimum [Member]
Stock Prices	$ 40.25	[1],[2],[3],[4],[5]	$ 41.00	[1],[2],[3],[4],[5]	$ 39.31	[1],[2],[3],[4],[5]	$ 46.00	[1],[2],[3],[4],[5]	$ 48.11	[1],[2],[3],[4],[5]	$ 46.63	[1],[2],[3],[4],[5]	$ 41.11	[1],[2],[3],[4],[5]	$ 38.38	[1],[2],[3],[4],[5]

[1] Fiscal years ended June 30, 2013 and 2012 include approximately $21.1 million ($14.4 million, net of tax, or $0.18 per diluted share) and $16.5 million ($11.3 million, net of tax, or $0.14 per diluted share), respectively, in non-cash share-based compensation expenses. See Note 3 "Share-based Compensation." Fiscal years 2013 and 2012 also include other-than-temporary impairment losses of approximately $0.6 million and $4.0 million, respectively, for auction rate securities. Fiscal year 2013 also include gain of approximately $4.1 million from sales of auction rate securities. See Note 2 "Financial Instruments and Fair Value Measurements."

[2] Fiscal years 2013 and 2012 include approximately $4.1 million and $0.5 million, respectively, in gains from sales of our investments in auction rate securities.

[3] Fiscal year 2013 includes a $2.0 million in an insurance settlement related to a fraud that occurred in Japan during fiscal year 2010.

[4] The sum of quarterly amounts does not equal the sum of as reported amounts for the respective fiscal years due to rounding differences.

[5] The results include activities from the acquisition of Torex which occurred on May 31, 2012

[6] Amounts based on the location of the selling entity.