Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2013

Share-Based Compensation [Abstract]

Summary Of Share-Based Compensation Expense Related To Share-Based Awards

	Three months ended				Nine months ended
	September 30,				September 30,
	2013		2012		2013		2012
Cost of software services, maintenance and subscriptions	$	408	$	286	$	1,087	$	791
Selling, general and administrative expense		2,653		1,617		7,452		4,715
Total share-based compensation expense	$	3,061	$	1,903	$	8,539	$	5,506