Share-Based Compensation to Employees (Tables)

9 Months Ended

12 Months Ended

Jun. 30, 2013

Sep. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of weighted average assumptions using the Black-Scholes option-pricing model

	2010			2011			2012
Expected dividend yield		—			—			—
Expected volatility		53.4	%		50.5	%		53.6	%
Risk-free interest rate		2.46	%		2.05	%		1.00	%
Expected term (years)		5.93			6.07			5.87

Summary of stock option activity

	Years Ended September 30,
	2010					2011					2012
	Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price		Options			Weighted Average Exercise Price
Outstanding, beginning of period		1,318		$	14.78		1,762		$	14.20		1,836		$	13.84
Granted		544			13.04		298			10.03		740			13.48
Exercised
Forfeited		(100	)		15.47		(224	)		11.59		(128	)		13.42
Outstanding, end of period		1,762			14.20		1,836			13.84		2,448			13.76

Summary of stock options outstanding and exercisable

The following table summarizes stock options outstanding and exercisable at September 30, 2012:

	Outstanding						Exercisable
	Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)		Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)
Exercise price
$3.27 - $4.91		80	$	3.50		4.04		80	$	3.50		4.04
$9.82 - $11.45		446		10.03		8.31		198		10.03		8.13
$11.46 - $13.09		644		12.91		8.11		186		12.63		5.01
$14.73 - $16.36		1,278		16.13		5.97		1,084		16.26		5.51
		2,448		13.76		6.89		1,548		14.36		5.71

Share-based compensation expense reflected in the condensed consolidated statements of operations

	Nine months ended June 30,
	2012		2013
Cost of services	$	151	$	1,987
General and administrative		1,207		4,372
Sales and marketing		215		2,329
Technology and development		505		2,540
Total	$	2,078	$	11,228

	Years Ended September 30,
	2010		2011			2012
Cost of services	$	222	$	171		$	203
General and administrative		1,249		955			1,588
Sales and marketing		357		(58	)		298
Technology and development		297		400			587
Total	$	2,125	$	1,468		$	2,676

Summary of RSU activity

	Years Ended September 30,
	2010				2011				2012
	RSUs		Weighted Average Grant Date Fair Value		RSUs		Weighted Average Grant Date Fair Value		RSUs			Weighted Average Grant Date Fair Value
Outstanding, beginning of period		232	$	16.26		232	$	16.26		348		$	14.20
Granted		—		—		116		10.47		286			13.03
Vested		—		—		—		—		—			—
Forfeited		—		—		—		—		(4	)		13.03
Outstanding, end of period		232		16.26		348		14.20		630			13.74