Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Schedule of Property and equipment

Property and equipment, net consisted of the following:

	As of December 31,
	2014			2013
	(in thousands)
Buildings	$	531,642		$	506,056
Furniture and equipment	202,846			190,555
Software	113,875			102,520
Leasehold improvements	99,942			163,019
Computers	45,893			43,096
Total property and equipment, gross	994,198			1,005,246
Less: accumulated depreciation	(278,386		)	(308,335		)
Total property and equipment, net	$	715,812		$	696,911