Description Of Business And Summary of Significant Accounting Policies (Net Income Per Share Attributable To Micros Systems, Inc. Common Shareholders) (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
Description Of Business And Summary Of Significant Accounting Policies [Abstract]
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
Effect of non-controlling interest put arrangement																	0	0	30
Net income available to MICROS Systems, Inc. common shareholders																	171,418	166,983	144,089
Average common shares outstanding																	79,247	80,300	80,726
Dilutive effect of outstanding stock options																	$ 1,525	$ 1,938	$ 1,946
Average common shares outstanding assuming dilution																	80,772	82,238	82,672
Basic net income per share attributable to MICROS Systems, Inc. common shareholders	$ 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
Diluted net income per share attributable to MICROS Systems, Inc. common shareholders	$ 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
Anti-dilutive weighted shares excluded from reconciliation																	2,498	1,702	701

[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