Property and Equipment, Net (Tables)

6 Months Ended

Jun. 30, 2017

Property, Plant and Equipment [Abstract]

Components of Property and Equipment

Property and equipment consisted of the following (in thousands):

	June 30, 2017				December 31, 2016
Computer hardware		$	176,137			$	170,746
Computer software		372,312				374,490
Furniture and equipment		101,787				100,472
Leasehold improvements		141,027				133,541
Other		9,760				9,993
Property and equipment, cost		801,023				789,242
Accumulated depreciation		(647,460		)		(627,733		)
Property and equipment, net		$	153,563			$	161,509