Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Share-Based Compensation [Abstract]

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

	Three months ended				Six months ended
	June 30,				June 30,
	2013		2012		2013		2012
Cost of software services, maintenance and subscriptions	$	343	$	257	$	679	$	505
Selling, general and administrative expense		2,560		1,511		4,799		3,098
Total share-based compensation expense	$	2,903	$	1,768	$	5,478	$	3,603