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CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES
 12 Months Ended
Mar. 31, 2020
Cash and Cash Equivalents [Abstract]  
CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES
Cash and cash equivalents consisted of U.S government and municipal obligations, commercial paper, money market instruments and cash maintained with various financial institutions at March 31, 2020 and 2019.
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):
March 31, 2020March 31, 2019March 31, 2018March 31, 2017
Cash and cash equivalents$338,489  $409,632  $369,821  $304,880  
Restricted cash1,748  188  910  846  
     Total cash, cash equivalents and restricted cash$340,237  $409,820  $370,731  $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 March 31, 2020 classified as short-term and long-term (in thousands):
Amortized
Cost		Unrealized
Gains		Fair
Value
Type of security:
U.S. government and municipal obligations$28,621  $107  $28,728  
Commercial paper14,644  —  14,644  
Corporate bonds4,587  10  4,597  
Total short-term marketable securities47,852  117  47,969  
U.S. government and municipal obligations2,562  51  2,613  
Total long-term marketable securities2,562  51  2,613  
Total marketable securities$50,414  $168  $50,582  
 
The following is a summary of marketable securities held by NetScout at March 31, 2019, classified as short-term and long-term (in thousands):
Amortized
Cost		Unrealized
Gains		Fair
Value
Type of security:
U.S. government and municipal obligations$27,610  $12  $27,622  
Commercial paper48,722  —  48,722  
Total short-term marketable securities76,332  12  76,344  
Corporate bonds1,007  5  1,012  
Total long-term marketable securities1,007  5  1,012  
Total marketable securities$77,339  $17  $77,356  
Contractual maturities of the Company’s marketable securities held at March 31, 2020 and March 31, 2019 were as follows (in thousands):
March 31,
2020		March 31,
2019
Available-for-sale securities:
Due in 1 year or less$47,969  $76,344  
Due after 1 year through 5 years2,613  1,012  
$50,582  $77,356