Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Schedule of Property and equipment

Property and equipment, net consisted of the following:

	As of December 31,
	2016			2015
	(in thousands)
Buildings	$	548,232		$	531,627
Furniture and equipment	236,634			218,623
Software	134,321			124,469
Leasehold improvements	108,702			106,768
Computers	58,271			52,295
Total property and equipment, gross	1,086,160			1,033,782
Less: accumulated depreciation	(387,798		)	(336,067		)
Total property and equipment, net	$	698,362		$	697,715