Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Schedule of Property and equipment

Property and equipment, net consisted of the following:

	As of December 31,
	2015			2014
	(in thousands)
Buildings	$	531,627		$	531,642
Furniture and equipment	218,623			202,846
Software	124,469			113,875
Leasehold improvements	106,768			99,942
Computers	52,295			45,893
Total property and equipment, gross	1,033,782			994,198
Less: accumulated depreciation	(336,067		)	(278,386		)
Total property and equipment, net	$	697,715		$	715,812