Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Mar. 31, 2014

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 Year		Additions Resulting in Charges to Operations		Charges to Other Accounts				Deductions Due to Write-Offs			Balance at End of Year
Year ended March 31, 2012
Allowance for doubtful accounts	$	346	$	96	$	63			$	(279	)	$	226
Deferred tax asset valuation allowance	$	249	$	—	$	3,280		(1)	$	—		$	3,529
Year ended March 31, 2013
Allowance for doubtful accounts	$	226	$	560	$	284			$	(99	)	$	971
Deferred tax asset valuation allowance	$	3,529	$	101	$	165			$	—		$	3,795
Year ended March 31, 2014
Allowance for doubtful accounts	$	971	$	250	$	(40	)		$	(868	)	$	313
Deferred tax asset valuation allowance	$	3,795	$	837	$	309			$	—		$	4,941

(1) Recorded in connection with the acquisition of Psytechnics.