PROPERTY, EQUIPMENT AND SOFTWARE, NET (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant, Equipment and Software

Depreciation and amortization expense on property, equipment and software is classified as follows in the accompanying consolidated statements of operations for the years ended December 31, 2019, 2018 and 2017 (in thousands):

	Year Ended December 31,
	2019		2018		2017
Service cost of revenue	$	28,917	$	28,102	$	26,738
Product cost of revenue	6,466		8,467		9,900
Selling, general and administrative	56,027		64,761		78,157
Total	$	91,410	$	101,330	$	114,795

The above amounts include amortization of internally-developed software of $56.6 million, $53.9 million and $57.0 million, and amortization expense on assets under finance leases of $18.9 million, $30.2 million and $35.2 million, for the years ended December 31, 2019, 2018 and 2017.

The following summarizes property, equipment and software, net as of December 31, 2019 and 2018 (in thousands):

	December 31,
	2019			2018
Warehouse equipment	$	5,144		$	5,265
Furniture and fixtures	9,113			9,677
Leasehold improvements	47,927			50,314
Office equipment	1,735			2,261
Purchased software	7,207			8,523
Computer hardware (1)	143,118			174,700
Internally-developed software (2)	222,140			196,807
Total property, equipment and software, gross	436,384			447,547
Less: accumulated depreciation and amortization	(311,434		)	(304,430		)
Property, equipment and software, net	$	124,950		$	143,117

(1) Includes computer hardware acquired under finance leases of $78.5 million and $120.5 million as of December 31, 2019 and 2018.

(2)

The net carrying amount of internally-developed software was $71.1 million and $70.9 million as of December 31, 2019 and

The following table summarizes depreciation and amortization of property, equipment and software and intangible assets by reportable segment for the years ended December 31, 2019, 2018 and 2017 (in thousands):

	Year Ended December 31,
	2019		2018		2017
North America	$	89,083	$	101,419	$	121,616
International	16,682		14,409		16,211
Consolidated total	$	105,765	$	115,828	$	137,827