Equity Incentive Plan (Tables)

12 Months Ended

Sep. 30, 2016

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

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,
	2016		2015		2014
	(in thousands)
Cost of software revenue	$	5,398	$	4,296	$	4,059
Cost of professional services revenue	5,393		5,871		6,351
Sales and marketing	14,659		14,189		13,441
Research and development	10,174		11,623		10,119
General and administrative	30,372		14,203		16,919
Total stock-based compensation expense	$	65,996	$	50,182	$	50,889

Restricted Stock And Restricted Stock Unit Grants



	Restricted Stock Units
Restricted stock unit grants	TSR Units (1)	Performance-based RSUs (2)	Service-based RSUs (2)
	(Number of Units in thousands)
Year ended September 30, 2016	326	343	1,815


(1)	The TSR units were granted to our executive officers pursuant to the terms described below.

(2) The service-based RSUs were issued to employees, our executive officers, our directors and a consultant. Executive officers may earn up to one or, for our CEO, two times the number of time-based RSUs (up to a maximum of 343 thousand shares) if certain performance conditions are met. Of the service-based RSUs, approximately 64 thousand shares will vest in one installment on or about the anniversary of the date of grant. Approximately 121 thousand shares will vest in two substantially equal annual installments on or about the anniversary of the date of grant. All other service-based RSUs will vest in three substantially equal annual installments on or about the anniversary of the date of grant. The performance-based RSUs will vest in three substantially equal installments on the later of November 15, 2016, November 15, 2017 and November 15, 2018, or the date the Compensation Committee determines the extent to which the applicable performance criteria have been achieved.

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	28.1	%
Risk free interest rate	1.05	%
Dividend yield	—	%

Value Of Stock Option And Stock-Based Award Activity



	Year ended September 30,
	2016		2015		2014
Value of stock option and stock-based award activity	(in thousands)
Total intrinsic value of stock options exercised	$	88	$	182	$	2,040
Total fair value of restricted stock unit awards vested	$	63,655	$	84,189	$	79,660

Restricted Stock Units (RSUs) [Member]

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, 2016
Restricted stock unit activity for the year ended September 30, 2016	(in thousands except grant date fair value data)
Balance of nonvested outstanding restricted stock units October 1, 2015	3,654		$	33.64
Granted	2,484		$	37.25
Vested	(1,818	)	$	30.10
Forfeited or not earned	(544	)	$	36.49
Balance of nonvested outstanding restricted stock units September 30, 2016	3,776		$	37.30	$	167,314