Revenue from Contracts with Customers (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Commission asset balances

Commission asset balances are as follows (in thousands):

	September 30, 2018		January 1, 2018
Commission asset, current	$	1,175	$	704
Commission asset, noncurrent	$	3,867	$	2,819

Contract liabilities

ontract liabilities (deferred revenue) balances are as follows (in thousands):

	September 30, 2018
	ASC 606		Operating Leases		Total
Deferred revenue, current	$	142,336	$	12,779	$	155,115
Deferred revenue, noncurrent	15,681		1,877		17,558
Total	$	158,017	$	14,656	$	172,673
	January 1, 2018
	ASC 606		Operating Leases		Total
Deferred revenue, current	$	130,579	$	12,607	$	143,186
Deferred revenue, noncurrent	15,419		1,717		17,136
Total	$	145,998	$	14,324	$	160,322

Accounts receivable, net

Accounts receivable, net, consists of the following (in thousands):

	September 30, 2018			January 1, 2018
ASC 606 receivables	$	54,632		$	60,984
Operating lease receivables	4,744			4,244
Less: allowance for doubtful accounts	(764		)	(816		)
Total accounts receivable, net	$	58,612		$	64,412

Expected revenue from contracts

The following table sets forth the expected revenue from all remaining performance obligations as of September 30, 2018 (in thousands):

	ASC 606 Expected Revenue		Operating Lease Expected Revenue		Total Expected Revenue
2018 (remaining three months)	$	12,755	$	2,063	$	14,818
2019	36,624		4,322		40,946
2020	18,791		1,536		20,327
2021	6,562		621		7,183
2022	976		39		1,015
2023 and thereafter	278		9		287
Total	$	75,986	$	8,590	$	84,576

Revenue by sales channel

Revenues by sales channel are as follows (in thousands):

	Three Months Ended September 30, 2018						Nine Months Ended September 30, 2018
	ASC 606 Revenue		Operating Lease Revenue		Total Revenue		ASC 606 Revenue		Operating Lease Revenue		Total Revenue
Direct	$	33,191	$	3,249	$	36,440	$	100,055	$	10,389	$	110,444
Partner	32,428		2,790		35,218		86,993		7,252		94,245
Total	$	65,619	$	6,039	$	71,658	$	187,048	$	17,641	$	204,689
	Three Months Ended September 30, 2017						Nine Months Ended September 30, 2017
	ASC 605 Revenue		Operating Lease Revenue		Total Revenue		ASC 605 Revenue		Operating Lease Revenue		Total Revenue
Direct	$	27,639	$	3,335	$	30,974	$	84,403	$	10,268	$	94,671
Partner	26,198		2,318		28,516		67,297		5,945		73,242
Total	$	53,837	$	5,653	$	59,490	$	151,700	$	16,213	$	167,913

, are as follows (in thous