Fixed Assets

Fixed assets consist of the following:



(in thousands)		As of December 31,
	Useful Life	2015			2014
Computer equipment and software, office equipment and furniture	3-7 years	$	22,631		$	19,265
Leasehold improvements	3-6 years	3,687			1,626
Total cost		26,318			20,891
Less: accumulated depreciation		(17,537		)	(12,944		)
Fixed assets, net of accumulated depreciation and amortization		$	8,781		$	7,947

Depreciation expense for the years ended December 31, 2015, 2014 and 2013 was $4.5 million, $3.6 million and $3.4 million, respectively. Actua uses the straight line method of depreciation.