
	Balance at Beginning of Year		Additions		Deductions		Balance at End of Year
Fiscal year ended February 1, 2020
Allowance for doubtful accounts (1)	$	2,637	$	3,448	$	(3,959)	$	2,126
Deferred tax asset valuation allowance	$	597,829	$	78,951	$	—	$	676,780
Fiscal year ended February 2, 2019
Allowance for doubtful accounts (1)	$	984	$	1,653	$	—	$	2,637
Deferred tax asset valuation allowance	$	618,353	$	—	$	(20,524)	$	597,829
Fiscal year ended February 3, 2018
Allowance for doubtful accounts and sales return reserve	$	1,384	$	2,352	$	(1,236)	$	2,500
Deferred tax asset valuation allowance	$	456,541	$	161,812	$	—	$	618,353

(1) Beginning in fiscal 2019 upon the adoption of the new revenue recognition standard, the sales return reserve is included as a component of contract liabilities within accrued liabilities in the accompanying consolidated balance sheet. The additions and deductions to contract liabilities during fiscal 2020 is disclosed in “Note 8 - Revenue” in the accompanying notes to the consolidated financial statements.