Property, Equipment and Software, net

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Property, equipment and software, net, consisted of the following as of December 31 (in thousands):



	Estimated Useful Life	2018			2017
Computer/office equipment	36 months	$	15,107		$	15,419
Capitalized internal-use software	36 months	30,412			24,784
Leasehold improvements	Life of lease	11,761			18,336
Total property, equipment and software, at cost		57,280			58,539
Less accumulated depreciation and amortization		(40,580		)	(34,967		)
Property, equipment and software, net		$	16,700		$	23,572

Amortization expense on capitalized internal-use software costs was $4.4 million, $4.9 million and $4.2 million for the years ended December 31, 2018, 2017 and 2016, respectively, and is included as a component of technology and analytics in our consolidated statements of operations.