Segment and Geographic Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 segment	Dec. 31, 2011
Segment and Geographic Information
Number of operating segments			3
Summary of operating segments
Segment revenue	$ 77,309	$ 66,555	$ 148,766	$ 117,780
Segment expense	25,132	25,221	47,572	50,864
Segment operating profit (loss)	52,177	41,334	101,194	66,916
Reconciliation to income (loss) before income taxes
Cost of subscription and software	(3,100)	(2,622)	(6,290)	(5,346)
Marketing	(23,303)	(22,318)	(44,894)	(45,764)
Research and development	(15,039)	(12,767)	(30,805)	(26,536)
General and administrative	(11,671)	(11,490)	(24,439)	(27,377)
Stock-based compensation	(3,453)	(3,071)	(7,768)	(6,779)
Restructuring charges	6	(14)	(34)	59
Other expense, net	(57)	(425)	(334)	(2,457)
Income (loss) before provision for (benefit from) income taxes	15,711	7,635	25,230	(8,883)
License
Summary of operating segments
Segment revenue	59,457	46,502	113,537	78,412
Segment expense	17,738	16,863	32,833	33,415
Segment operating profit (loss)	41,719	29,639	80,704	44,997
SMS, Training and Other
Summary of operating segments
Segment revenue	11,626	14,401	23,329	28,568
Segment expense	1,865	2,513	3,689	5,206
Segment operating profit (loss)	9,761	11,888	19,640	23,362
Professional Services
Summary of operating segments
Segment revenue	6,226	5,652	11,900	10,800
Segment expense	5,529	5,845	11,050	12,243
Segment operating profit (loss)	697	(193)	850	(1,443)
Unallocated Amount to Segment
Reconciliation to income (loss) before income taxes
Cost of subscription and software	(3,100)	(2,622)	(6,290)	(5,346)
Marketing	(2,479)	(2,448)	(6,000)	(6,315)
Research and development	(12,299)	(10,573)	(25,285)	(22,145)
General and administrative	(9,417)	(9,475)	(19,151)	(22,581)
Information technology and overhead	(6,506)	(6,090)	(12,783)	(12,393)
Stock-based compensation	(3,453)	(3,071)	(7,768)	(6,779)
Restructuring charges	6	(14)	(34)	59
Other expense, net	(57)	(425)	(334)	(2,457)
Interest income (net)	$ 839	$ 1,019	$ 1,681	$ 2,158

The amount of costs for information technology and indirect operating expenses incurred during the period.

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Direct expenses of the operating segment. Does not contain an allocation for selling and marketing, general and administrative, development, restructuring and other corporate expenses incurred in support of the segments.

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Segment operating profits reported reflect only the direct expenses of the operating segment and contain certain allocations for selling and marketing, general and administrative, development, restructuring and other corporate expenses incurred in support of the segments.

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Costs incurred directly related to generating subscription and software revenue from the licensing of software products. Costs include royalty expense, amortization of capitalized software costs and other costs related to the delivery of software. Costs also include the expense associated with providing maintenance on aspenONE subscription arrangements and point product license arrangements where we have not established VSOE for the maintenance deliverable. Costs also include amortization for technology related costs.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

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The net amount of nonoperating interest income (expense).

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

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Research and development expense during the period related to the costs of developing and achieving technological feasibility of a computer software product to be sold, leased, or otherwise marketed.

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Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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Amount of total revenue for the reportable segments, including revenue from external customers, transactions with other operating segments of the same entity, and (gross) interest revenue. All considered to be "operating revenue" for purposes of the taxonomy.

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The aggregate total amount of expenses directly related to the marketing or selling of products or services.

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