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]

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