Significant Accounting Policies (Details) (USD $)	3 Months Ended				6 Months Ended						3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended			3 Months Ended			6 Months Ended			12 Months Ended						3 Months Ended		6 Months Ended		12 Months Ended			3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2011		Dec. 31, 2010		Jun. 30, 2011	Jun. 30, 2009	Dec. 31, 2011 Current [Member]	Dec. 31, 2010 Current [Member]	Dec. 31, 2011 Current [Member]	Dec. 31, 2010 Current [Member]	Dec. 31, 2011 Non-Current [Member]	Dec. 31, 2010 Non-Current [Member]	Dec. 31, 2011 Non-Current [Member]	Dec. 31, 2010 Non-Current [Member]	Jun. 30, 2012 aspenONE subscription [Member]	Jun. 30, 2011 aspenONE subscription [Member]	Jun. 30, 2010 aspenONE subscription [Member]	Dec. 31, 2011 Point products - Software [Member]		Dec. 31, 2010 Point products - Software [Member]	Dec. 31, 2011 Point products - Software [Member]		Dec. 31, 2010 Point products - Software [Member]	Jun. 30, 2012 Point products - Software [Member]	Jun. 30, 2011 Point products - Software [Member]	Jun. 30, 2010 Point products - Software [Member]	Jun. 30, 2012 Point products - Bundled SMS [Member]	Jun. 30, 2011 Point products - Bundled SMS [Member]	Jun. 30, 2010 Point products - Bundled SMS [Member]	Dec. 31, 2011 Other - Upfront legacy amendments and legacy arrangements [Member]	Dec. 31, 2010 Other - Upfront legacy amendments and legacy arrangements [Member]	Dec. 31, 2011 Other - Upfront legacy amendments and legacy arrangements [Member]	Dec. 31, 2010 Other - Upfront legacy amendments and legacy arrangements [Member]	Jun. 30, 2012 Other - Upfront legacy amendments and legacy arrangements [Member]	Jun. 30, 2011 Other - Upfront legacy amendments and legacy arrangements [Member]	Jun. 30, 2010 Other - Upfront legacy amendments and legacy arrangements [Member]	Dec. 31, 2011 Other - Perpetual arrangements [Member]	Dec. 31, 2010 Other - Perpetual arrangements [Member]	Dec. 31, 2011 Other - Perpetual arrangements [Member]	Dec. 31, 2010 Other - Perpetual arrangements [Member]	Jun. 30, 2012 Other - Perpetual arrangements [Member]	Jun. 30, 2011 Other - Perpetual arrangements [Member]	Jun. 30, 2010 Other - Perpetual arrangements [Member]
Overview of Licensing Model Changes [Abstract]
Period for which SMS was offered, prior to bundling (in years)										1Y
Schedule Of Revenue Classification in Income Statement And Revenue Recognition Methodology [Line Items]
Revenue Classification in Income Statement																			Subscription and software	Subscription	Subscription							Subscription and software	Software	Software	Subscription and software	Services and other	Services and other					Subscription and software	Software	Software					Subscription and software	Software	Software
Revenue Recognition Methodology																			Ratable	Ratable	Ratable							Ratable	Residual method	Residual method	Ratable	Ratable	Ratable					Residual method	Residual method	Residual method					Residual method	Residual method	Residual method
Subscription and software revenue:
Ratable	$ 31,726,000	[1]	$ 11,847,000	[1]	$ 60,181,000	[1]	$ 21,504,000	[1]
Residual method	14,776,000	[2]	13,486,000	[2]	18,231,000	[2]	22,796,000	[2]															[3]	4,169,000		[3]	9,779,000							13,668,000	9,045,000	16,784,000	11,876,000				1,108,000	272,000	1,447,000	1,141,000
Subscription and software revenue	46,502,000		25,333,000		78,412,000		44,300,000
Ratable, percent of total (in hundredths)	68.20%	[1]	46.80%	[1]	76.70%	[1]	48.50%	[1]
Residual method, percent of total (in hundredths)	31.80%	[2]	53.20%	[2]	23.30%	[2]	51.50%	[2]
Subscription and software revenue, percent of total (in hundredths)	100.00%		100.00%		100.00%		100.00%
Bundled SMS revenue from point products	600,000				1,000,000
Installments receivable [Abstract]
Discount rate, minimum (in hundredths)					8.00%
Discount rate, maximum (in hundredths)					9.00%
Threshold period for classification of current installments receivable (in days)					45D
Percentage of total installments receivable allowance for doubtful accounts represented by specific reserve (in hundredths)	94.00%				94.00%				92.00%
Current [Abstract]
Installments receivable, gross	39,639,000				39,639,000				41,407,000
Less: Unamortized discount	(1,630,000)				(1,630,000)				(1,937,000)
Less: Allowance for doubtful accounts	(661,000)				(661,000)				(767,000)
Installments receivable, net	37,348,000				37,348,000				38,703,000
Non-current [Abstract]
Installments receivable, gross	37,891,000				37,891,000				55,277,000
Less: Unamortized discount	(4,500,000)				(4,500,000)				(7,383,000)
Less: Allowance for doubtful accounts	(64,000)				(64,000)				(121,000)
Installments receivable, net	33,327,000				33,327,000				47,773,000
Total [Abstract]
Installments receivable, gross	77,530,000				77,530,000				96,684,000
Less: Unamortized discount	(6,130,000)				(6,130,000)				(9,320,000)
Less: Allowance for doubtful accounts	(725,000)				(725,000)				(888,000)
Installments receivable, net	70,675,000				70,675,000				86,476,000
Allowance for doubtful accounts [Roll Forward]
Beginning balance	731,000		2,362,000		888,000		2,315,000				660,000	1,166,000	767,000	1,119,000	71,000	1,196,000	121,000	1,196,000
Transfers to trade accounts receivable	0		(4,000)		(41,000)		(75,000)				0	(4,000)	(41,000)	(75,000)	0	0	0	0
Transfers from non-current to current	0		0		0		0				0	3,000	0	30,000	0	(3,000)	0	(30,000)
Write-offs	0		(238,000)		(40,000)		(238,000)				0	(226,000)	(19,000)	(226,000)	0	(12,000)	(21,000)	(12,000)
Recoveries of previous write-offs	10,000		0		10,000		0				0	0	0	0	10,000	0	10,000	0
Provision for bad debts	(16,000)		35,000		(92,000)		153,000				1,000	59,000	(46,000)	150,000	(17,000)	(24,000)	(46,000)	3,000
Ending balance	$ 725,000		$ 2,155,000		$ 725,000		$ 2,155,000				$ 661,000	$ 998,000	$ 661,000	$ 998,000	$ 64,000	$ 1,157,000	$ 64,000	$ 1,157,000

[1] During the three and six months ended December 31, 2010, the fair value of the SMS element of point product arrangements totaled $XXX million and $XXX million, respectively and was presented in the statements of operations as services and other revenue. Effective July 1, 2012, the fee attributable to the SMS in point product arrangements is no longer separable, because we are unable to establish VSOE of fair value, and as a result, is included within ratable revenue.

[2] Residual method revenue detail Three Months Ended December 30, Six Months Ended December 31, 2011 2010 2011 2010 (Dollars in thousands) (Dollars in thousands) Residual method revenue: Point products - Software * $5,611 * $5,611 Upfront legacy amendments and legacy arrangements 3,115 2,831 3,115 2,831 Perpetual arrangements 340 869 340 869 Total residual method revenue $3,455 $9,311 $3,455 $9,311

[3] In fiscal 2012, the total combined arrangement fee (which includes the fee attributable to SMS) for point product arrangements with enhanced SMS is recognized on a ratable basis.