Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment

Property and equipment consisted of the following as of December 31, 2018 and 2017 (in thousands except years):

	December 31, 2018			December 31, 2017			Estimated Useful Life
Computer and networking equipment	$	1,301,604		$	1,292,587		3-7
Purchased software	73,888			61,276			3-10
Furniture and fixtures	54,057			48,521			1-7
Office equipment	29,309			26,949			3-5
Leasehold improvements	184,700			152,487			1-15
Internal-use software	944,279			765,162			2-7
Property and equipment, gross	2,587,837			2,346,982
Accumulated depreciation and amortization	(1,677,219		)	(1,484,447		)
Property and equipment, net	$	910,618		$	862,535