Property and Equipment

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Property and Equipment.

Property and Equipment

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

	2018			2017
Computer hardware and software	$	159,357		$	115,444
Furniture, fixtures and equipment	22,242			17,556
Leasehold improvements	19,229			16,628
Work-in-progress	3,690			4,565
	204,518			154,193
Less -- accumulated depreciation	(125,395		)	(96,197		)
	$	79,123		$	57,996

The Company has capitalized costs related to its various technology initiatives. At December 31, 2018 and 2017, the net book value of the property and equipment related to computer software was $41.3 million and $33.3 million, respectively, which included work-in-progress of $3.1 million and $3.2 million, respectively.

Depreciation expense related to property and equipment was $36.5 million in 2018, $25.2 million in 2017 and $22.6 million in 2016 and is included in SG&A expenses and costs of services ($7.7 million in costs of services in 2018, related to ECS).