Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

Revenue and cost of revenue (excluding depreciation and amortization) disaggregated by revenue source are as follows (in thousands):

	Three months ended March 31,
	2018		2017
Revenue:
Products	$	59,250	$	78,514
Services	1,266		1,440
	$	60,516	$	79,954
Cost of revenue (excluding depreciation and amortization):
Products	$	44,514	$	50,691
Services	1,187		934
	$	45,701	$	51,625