On January 1, 2018, we adopted ASC Topic 606, Revenue from Contracts with Customers (“ASC 606”), using the modified retrospective method applied to contracts not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under ASC 606, while prior period amounts are not adjusted and continue to be reported in accordance with our historic accounting under ASC 605. We recorded a net reduction to opening accumulated deficit of approximately $108 million as of January 1, 2018 due to the cumulative impact of adopting ASC 606. The primary impact of ASC 606 that resulted in a significant decrease in deferred revenue is that vendor specific objective evidence of fair value is no longer required to recognize revenue for distinct software products upon delivery, which allows recognition upon delivery rather than on a ratable basis over a period of time.

A summary of the changes to balance sheet line items that resulted from the adoption of ASC 606 as of January 1, 2018 is as follows (in thousands):



	As of January 1, 2018
	As Previously Reported			Impact of Adoption of Topic 606⁽⁵⁾			As Adjusted
Assets:
Accounts receivable, net⁽¹⁾	$	40,134		$	21,088		$	61,222
Contract assets⁽²⁾	—			6,579			6,579
Inventory⁽³⁾	38,421			(5,716		)	32,705
Other long-term assets	10,811			865			11,676
Total assets	$	234,684		$	22,816		$	257,500
Liabilities:
Accrued expenses and other current liabilities ⁽¹⁾	$	31,549		$	11,139		$	42,688
Deferred revenue (current portion) ⁽⁴⁾	121,184			(41,611		)	79,573
Long-term deferred revenue ⁽⁴⁾	73,429			(55,079		)	18,350
Total liabilities	$	503,254		$	(85,551	)	$	417,703
Stockholders’ deficit:
Accumulated deficit	(1,284,703		)	108,367			(1,176,336		)
Total stockholders’ deficit	$	(268,570	)	$	108,367		$	(160,203	)

⁽¹⁾

The increase in accounts receivable and accrued expenses and other current liabilities is due to the reclassification of allowances for sales returns, rebates and other adjustments to selling prices that are considered variable consideration under ASC 606 and are now presented as a liability on our balance sheet. Accounts receivable also increased due to advanced contractual support billings now being recorded on a gross basis in accounts receivable when it is due, rather than being net against corresponding unamortized deferred revenue.

⁽²⁾

For subscription contracts, we are now required under ASC 606 to record contract assets for annual and multi-year subscriptions that are billed monthly, resulting in an increase in contract assets at the date of adoption. In addition, some of our enterprise agreements have fixed payment schedules whereas the timing of the fulfillment of performance obligations under the contracts can vary, which can result in the fulfillment of performance obligations exceeding contract billings, which also results in contract assets.


⁽³⁾	The reduction is due to inventory and deferred costs that were directly attributable to deferred revenue transactions that were reduced or eliminated due to the adoption of ASC 606 (as described in footnote 4 below), necessitating the elimination of corresponding inventory and deferred costs associated with those deferred revenue transactions.


⁽⁴⁾	The reduction is primarily attributable to the elimination of the requirement to have vendor specific objective evidence of fair value for undelivered elements that existed under ASC 985, the prior applicable accounting guidance, for software products, which no longer precludes revenue recognition under ASC 606.

⁽⁵⁾ See Note O for a further description of the components of revenue and related performance obligations under ASC 606 that resulted in cumulative changes to balance sheet accounts as a result of the adoption of ASC 606.

The impact of adopting Topic 606 on our consolidated financial statements was as follows (in thousands):



	As of December 31, 2018
	As Reported			Impact of Adoption of Topic 606			Under Previous GAAP
Assets:
Accounts receivable, net	$	67,754		$	(19,703	)	$	48,051
Contract assets	16,513			(16,513		)	—
Inventory	32,956			10,418			43,374
Other long-term assets	9,432			(900		)	8,532
Total assets	$	265,843		$	(26,698	)	$	239,145
Liabilities:
Accrued expenses and other current liabilities	$	37,547		$	(9,003	)	$	28,544
Deferred revenue (current portion)	85,662			32,223			117,885
Long-term deferred revenue	13,939			54,246			68,185
Total liabilities	$	432,504		$	77,466		$	509,970
Stockholders’ deficit:
Accumulated deficit	(1,187,010		)	(104,164		)	(1,291,174		)
Total stockholders’ deficit	$	(166,661	)	$	(104,164	)	$	(270,825	)



	For the year ended December 31, 2018
	As Reported			Impact of Adoption of Topic 606			Under Previous GAAP
Total net revenue	$	413,282		$	(515	)	$	412,767
Total cost of revenue	174,118			(4,718		)	169,400
Total gross profit	239,164			4,203			243,367
Loss before income taxes	(9,403		)	4,203			(5,200		)
Net loss	(10,674		)	4,203			(6,471		)
Net loss - basic and diluted	$	(0.26	)	$	0.10		$	(0.16	)