Software Developed For Internal Use (Tables)

6 Months Ended

Jun. 30, 2012

Software Developed For Internal Use [Abstract]

Schedule Of Software Developed For Internal Use

	Six months ended June 30,
	2012		2011
Capitalized internal-use software costs	$	10,074	$	6,883
Research and development expenses		13,978		9,264
Total capitalized software costs and research and development expenses	$	24,052	$	16,147