CASH, CASH EQUIVALENTS, RESTRICTED CASH AND MARKETABLE SECURITIES

9 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

CASH, CASH EQUIVALENTS, RESTRICTED CASH AND MARKETABLE SECURITIES

The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents and those investments with original maturities greater than three months to be marketable securities. Cash and cash equivalents consisted of money market instruments and cash maintained with various financial institutions at December 31, 2018 and March 31, 2018.

Cash, Cash Equivalents and 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):



	December 31, 2018		March 31, 2018		December 31, 2017		March 31, 2017
Cash and cash equivalents	$	369,054	$	369,821	$	331,912	$	304,880
Restricted cash	187		910		910		846
Total cash, cash equivalents and restricted cash	$	369,241	$	370,731	$	332,822	$	305,726

The Company's restricted cash includes cash balances which are legally or contractually restricted. The Company's restricted cash is included within prepaid and other current assets and consists of amounts related to holdbacks associated with prior acquisitions.

Marketable Securities

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



	Amortized Cost		Unrealized (Losses) Gains			Fair Value
Type of security:
U.S. government and municipal obligations	$	53,972	$	(7	)	$	53,965
Commercial paper	50,783		—			50,783
Corporate bonds	1,005		—			1,005
Total short-term marketable securities	105,760		(7		)	105,753
Corporate bonds	1,001		1			1,002
Total long-term marketable securities	1,001		1			1,002
Total marketable securities	$	106,761	$	(6	)	$	106,755

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

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



	December 31, 2018		March 31, 2018
Available-for-sale securities:
Due in 1 year or less	$	105,753	$	77,941
Due after 1 year through 5 years	1,002		—
	$	106,755	$	77,941