Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Schedule of Property and equipment

Property and equipment, net consisted of the following:

	As of December 31,
	2018			2017
	(in thousands)
Buildings	$	657,438		$	634,061
Furniture and equipment	280,908			256,509
Software	162,601			151,890
Leasehold improvements	103,428			117,806
Computers	59,073			61,294
Total property and equipment, gross	1,263,448			1,221,560
Less: accumulated depreciation	(451,443		)	(432,123		)
Total property and equipment, net	$	812,005		$	789,437