CASH, CASH EQUIVALENTS, RESTRICTED CASH AND MARKETABLE SECURITIES (Tables)

3 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Schedule of Cash, Cash Equivalents

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows (in thousands):

	June 30, 2018		March 31, 2018		June 30, 2017		March 31, 2017
Cash and cash equivalents	$	353,416	$	369,821	$	261,736	$	304,880
Restricted cash	910		910		846		846
Total cash, cash equivalents and restricted cash	$	354,326	$	370,731	$	262,582	$	305,726

Schedule of Restricted Cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows (in thousands):

	June 30, 2018		March 31, 2018		June 30, 2017		March 31, 2017
Cash and cash equivalents	$	353,416	$	369,821	$	261,736	$	304,880
Restricted cash	910		910		846		846
Total cash, cash equivalents and restricted cash	$	354,326	$	370,731	$	262,582	$	305,726

Summary of Marketable Securities

The following is a summary of marketable securities held by NetScout at June 30, 2018, classified as short-term and long-term (in thousands):

	Amortized Cost		Unrealized Losses			Fair Value
Type of security:
U.S. government and municipal obligations	$	46,019	$	(4	)	$	46,015
Commercial paper	56,877		—			56,877
Corporate bonds	2,746		(1		)	2,745
Total short-term marketable securities	105,642		(5		)	105,637
Total long-term marketable securities	—		—			—
Total marketable securities	$	105,642	$	(5	)	$	105,637

The following is a summary of marketable securities held by NetScout at March 31, 2018, classified as short-term and long-term (in thousands):

	Amortized Cost		Unrealized Losses			Fair Value
Type of security:
U.S. government and municipal obligations	$	42,246	$	(60	)	$	42,186
Commercial paper	33,003		—			33,003
Corporate bonds	2,754		(2		)	2,752
Total short-term marketable securities	78,003		(62		)	77,941
Total long-term marketable securities	—		—			—
Total marketable securities	$	78,003	$	(62	)	$	77,941

Summary of Contractual Maturities of Marketable Securities

Contractual maturities of the Company's marketable securities held at June 30, 2018 and March 31, 2018 were as follows (in thousands):

	June 30, 2018		March 31, 2018
Available-for-sale securities:
Due in 1 year or less	$	105,637	$	77,941
	$	105,637	$	77,941