SHORT-TERM INVESTMENTS

12 Months Ended

Mar. 31, 2020

Investments, Debt and Equity Securities [Abstract]

SHORT TERM INVESTMENTS

SHORT-TERM INVESTMENTS

        Our short-term investments consisted of the following as of March 31, 2020:

	March 31, 2020
	Cost or Amortized Cost		Gross Unrealized
			Gains		Losses		Fair Value
Short-term investments
Bank time deposits	$	191,000	$	—	$	—	$	191,000
Available-for-sale securities:
Corporate bonds	337,752		307		(3,428)		334,631
US Treasuries	30,481		338		—		30,819
Commercial paper	87,553		—		—		87,553
Total short-term investments	$	646,786	$	645	$	(3,428)	$	644,003

	March 31, 2019
	Cost or Amortized Cost		Gross Unrealized
			Gains		Losses		Fair Value
Short-term investments
Bank time deposits	$	387,720	$	—	$	—	$	387,720
Available-for-sale securities:
Corporate bonds	295,526		742		(127)		296,141
US Treasuries	55,656		27		(49)		55,634
Commercial paper	4,990		—		—		4,990
Total short-term investments	$	743,892	$	769	$	(176)	$	744,485

        Based on our evaluation of impairment for these investments, we did not consider any of these investments to be other-than-temporarily impaired as of March 31, 2020 or 2019. We do not intend to sell any of our investments with unrealized losses, nor is it more likely than not that we will be required to sell those investments.

        The following table summarizes the contracted maturities of our short-term investments at March 31, 2020:

	March 31, 2020
	Amortized Cost		Fair Value
Short-term investments
Due in 1 year or less	$	496,639	$	495,645
Due in 1-2 years	150,147		148,358
Total short-term investments	$	646,786	$	644,003