Property and Equipment, Net

3 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Property and equipment, net, which includes assets under finance lease, consists of the following:



	March 31,			December 31,
	2019			2018
	(in thousands)
Computer equipment	$	98,537		$	93,530
Computer software	26,041			26,030
Furniture, fixtures and equipment	5,907			5,814
Finance leases - right of use asset	3,503			3,503
Scanner appliances	15,665			15,356
Leasehold improvements	16,469			16,439
Total property and equipment	166,122			160,672
Less: accumulated depreciation and amortization	(105,636		)	(99,230		)
Property and equipment, net	$	60,486		$	61,442

Physical scanner appliances and other computer equipment have a net carrying value of $7.5 million and $7.9 million at March 31, 2019 and December 31, 2018, respectively, including assets that have not been placed in service of $1.2 million and $1.8 million, respectively. Depreciation and amortization expense relating to property and equipment, including capitalized leases, was $6.4 million and $6.4 million for the three months ended March 31, 2019 and 2018, respectively. Accumulated depreciation under finance leases was $1.3 million at March 31, 2019.