SHORT-TERM INVESTMENTS (Tables)

9 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Schedule of short-term investments

Our Short-term investments consisted of the following:

	December 31, 2018
			Gross Unrealized
	Cost or Amortized Cost		Gains		Losses			Fair Value
Short-term investments
Bank time deposits	$	152,562	$	—	$	—		$	152,562
Available-for-sale securities:
Corporate bonds	321,034		106		(783		)	320,357
US Treasuries	53,585		—		(113		)	53,472
Commercial paper	19,343		—		—			19,343
Total Short-term investments	$	546,524	$	106	$	(896	)	$	545,734

	March 31, 2018
			Gross Unrealized
	Cost or Amortized Cost		Gains		Losses			Fair Value
Short-term investments
Bank time deposits	$	216,663	$	—	$	—		$	216,663
Available-for-sale securities:
Corporate bonds	310,387		16		(1,687		)	308,716
US Treasuries	59,970		—		(245		)	59,725
Commercial paper	25,422		—		—			25,422
Mutual funds	4,876		16		(12		)	4,880
Total Short-term investments	$	617,318	$	32	$	(1,944	)	$	615,406

Summary of the contracted maturities of short-term investments

The following table summarizes the contracted maturities of our short-term investments at December 31, 2018:

	December 31, 2018
	Amortized Cost		Fair Value
Short-term investments
Due in 1 year or less	$	429,993	$	429,296
Due in 1 - 2 years	116,531		116,438
Total short-term investments	$	546,524	$	545,734