CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES (Tables)

3 Months Ended

Jun. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Components Of Marketable Securities

The following is a summary of marketable securities held by NetScout at June 30, 2014 classified as short-term and long-term (in thousands):

	Amortized Cost		Unrealized Gains (Losses)			Fair Value
Type of security:
U.S. government and municipal obligations	$	61,764	$	37		$	61,801
Commercial paper	23,881		1			23,882
Corporate bonds	3,205		2			3,207
Total short-term marketable securities	88,850		40			88,890
U.S. government and municipal obligations	53,663		30			53,693
Corporate bonds	2,888		(1		)	2,887
Total long-term marketable securities	56,551		29			56,580
Total marketable securities	$	145,401	$	69		$	145,470

The following is a summary of marketable securities held by NetScout at March 31, 2014, classified as short-term and long-term (in thousands):

	Amortized Cost		Unrealized Gains (Losses)			Fair Value
Type of security:
U.S. government and municipal obligations	$	53,854	$	26		$	53,880
Commercial paper	14,581		0			14,581
Corporate bonds	6,772		1			6,773
Total short-term marketable securities	75,207		27			75,234
U.S. government and municipal obligations	37,875		2			37,877
Corporate bonds	3,611		(4		)	3,607
Total long-term marketable securities	41,486		(2		)	41,484
Total marketable securities	$	116,693	$	25		$	116,718

Contractual Maturities Of Marketable Securities

Contractual maturities of the Company’s marketable securities held at June 30, 2014 and March 31, 2014 were as follows (in thousands):

	June 30, 2014		March 31, 2014
Available-for-sale securities:
Due in 1 year or less	$	88,890	$	75,234
Due after 1 year through 5 years	56,580		41,484
	$	145,470	$	116,718