Properties and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

Property and equipment, net

Property and equipment, net was comprised of the following for the indicated periods:

	December 31,
	2012			2011
Computer equipment	$	40,281		$	43,526
Equipment and furniture	18,881			20,117
Software	29,538			29,304
Leasehold improvements	8,549			8,262
Total property and equipment	97,249			101,209
Accumulated depreciation	(75,159		)	(75,914		)
Property and equipment, net	$	22,090		$	25,295