Stock-Based Compensation and Employee Benefit Plans (Tables)

12 Months Ended

Sep. 30, 2014

Stock-Based Compensation and Employee Benefit Plans

Schedule of weighted-average assumptions used for options granted

	Fiscal year ended September 30,
	2014			2013			2012
Significant assumptions:
Time based vesting
Risk-free rate(1)		.02%–3.65	%		.11%–4.59	%		.10%–3.12	%
Expected term(2)		6.5 years			6.5 years			6.5 years
Expected volatility(3)		37%			36%			37%
Expected dividends		0.0%			0.0%			0.0%
Performance based vesting
Risk-free rate(1)		.02%–3.65	%		.11%–4.59	%		.10%–3.12	%
Expected term(4)		3.1 years			4.5 years			5.6 years
Expected volatility(3)		33%			37%			38%
Expected dividends		0.0%			0.0%			0.0%

(1)	The risk free interest rate assumption was based on yields of U.S. Treasury securities in effect at the date of grant with terms similar to the expected term.
(2)	The expected term of the options was estimated utilizing the simplified method. We utilize the simplified method because the Company does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate expected term. The simplified method was used for all stock options that require only a service vesting condition.
(3)	Expected volatility was estimated based on historical volatility of peer companies over a period equivalent to the expected term. Peer companies are determined based on relevant industry and/or market capitalization.
(4)	The expected term of the options was estimated utilizing a Monte Carlo simulation model.

Summary of stock option activity

	Fiscal Year Ended September 30,
	2014					2013
	Number of shares			Weighted average exercise price		Number of shares			Weighted average exercise price
Outstanding at beginning of period		173,183		$	179		162,951		$	151
Granted		13,430		$	473		19,180		$	397
Exercised		(614	)	$	133		(730	)	$	124
Forfeited		(46,352	)	$	153		(8,218	)	$	124
Outstanding at end of period		139,647		$	212		173,183		$	179
Exercisable at end of period		50,360		$	152		29,833		$	139
Number of shares available for future grant		117,269

Summary of information about stock options outstanding, by range of exercise prices

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Shares Outstanding		Weighted Average Remaining Contractual Life		Weighted Average Exercise Price		Shares Exercisable		Weighted Average Exercise Price		Intrinsic Value
$124		87,047		4.9	$	124		43,090	$	124	$	15,056
$299		29,890		7.8	$	299		5,664	$	299	$	988
$396		10,630		8.6	$	396		1,456	$	396	$	112
$473		12,080		9.6	$	473		150	$	473	$	—