Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Mar. 31, 2021

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

NetScout Systems, Inc.

Schedule II—Valuation and Qualifying Accounts

(in thousands)

	Balance at Beginning of Fiscal Year		Additions Resulting in Charges to Operations		Charges to Other Accounts		Deductions Due to Write-Offs		Balance at End of Fiscal Year
Fiscal year ended March 31, 2019
Allowance for credit losses	$	1,991	$	826	$	(464)	$	(770)	$	1,583
Deferred tax asset valuation allowance	$	3,108	$	905	$	—	$	(3,178)	$	835
Fiscal year ended March 31, 2020
Allowance for credit losses	$	1,583	$	1,450	$	(1,202)	$	(481)	$	1,350
Deferred tax asset valuation allowance	$	835	$	4,806	$	—	$	—	$	5,641
Fiscal year ended March 31, 2021
Allowance for credit losses	$	1,350	$	48	$	(733)	$	(249)	$	416
Deferred tax asset valuation allowance	$	5,641	$	5,765	$	—	$	—	$	11,406