Equity Incentive Plan (Tables)

12 Months Ended

Sep. 30, 2015

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Total Stock Based Compensation Expense

The following table shows total stock-based compensation expense recorded from our stock-based awards as reflected in our Consolidated Statements of Operations:

	Year ended September 30,
	2015		2014		2013
	(in thousands)
Cost of license and subscription revenue	$	521	$	314	$	21
Cost of support revenue	3,775		3,745		3,324
Cost of professional services revenue	5,871		6,351		6,134
Sales and marketing	12,223		10,982		11,326
Research and development	11,623		10,119		8,590
General and administrative	16,169		19,378		19,392
Total stock-based compensation expense	$	50,182	$	50,889	$	48,787

Restricted Stock And Restricted Stock Unit Grants

	Restricted Stock Units
Restricted stock unit grants	Performance-based (1)	Time-based (2)
	(Number of Units in thousands)
Year ended September 30, 2015	313	1,597

(1) The performance-based RSUs were granted to employees, including our executive officers, pursuant to the terms described below.

(2) The service-based RSUs were issued to employees, including our executive officers, and our directors. Of these RSUs, approximately 212,000 will vest one year from the date of grant. Substantially all other service-based RSUs will vest in three substantially equal annual installments on or about the anniversary of the date of grant.

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

The significant assumptions used in the Monte Carlo simulation model were as follows:

Average volatility of peer group	29.8	%
Risk free interest rate	0.85	%
Dividend yield	—	%

Value Of Stock Option And Stock-Based Award Activity

	Year ended September 30,
	2015		2014		2013
Value of stock option and stock-based award activity	(in thousands)
Total intrinsic value of stock options exercised	$	182	$	2,040	$	6,525
Total fair value of restricted stock unit awards vested	$	84,189	$	79,660	$	48,083

Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Restricted Stock Activity

	Shares		Weighted Average   Grant Date   Fair Value		Aggregate Intrinsic Value as of September 30, 2015
Restricted stock unit activity for the year ended September 30, 2015	(in thousands except grant date fair value data)
Balance of nonvested outstanding restricted stock units October 1, 2014	4,379		$	26.87
Granted	1,910		$	38.19
Vested	(2,206	)	$	24.67
Forfeited or not earned	(429	)	$	30.94
Balance of nonvested outstanding restricted stock units September 30, 2015	3,654		$	33.64	$	115,987