The table below details the activity of the accounts receivable allowances and deferred tax asset valuation allowance for the fiscal years ended January 31, 2023, 2022, and 2021:


	Balance at Beginning of Year		Additions		Write-offs or Deductions		Balance at End of Year

	(in thousands)
Year ended January 31, 2023
Accounts receivable allowances	$	24,696	$	57,142	$	(48,632)	$	33,206
Deferred tax asset valuation allowance	$	12,605	$	40,965	$	—	$	53,570
Year ended January 31, 2022
Accounts receivable allowances	$	36,844	$	50,467	$	(62,615)	$	24,696
Deferred tax asset valuation allowance	$	335,051	$	5,511	$	(327,957)	$	12,605
Year ended January 31, 2021
Accounts receivable allowances	$	7,634	$	47,405	$	(18,195)	$	36,844
Deferred tax asset valuation allowance	$	36,353	$	298,698	$	—	$	335,051

All other financial statement schedules have been omitted, since the required information is not applicable or is not present in amounts sufficient to require submission of the schedule, or because the information required is included in the consolidated financial statements and notes thereto included in this Form 10-K.