Fair Value Measurements (Tables)

6 Months Ended

Sep. 30, 2016

Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Assets measured at fair value on a recurring basis at September 30, 2016 are as follows (amounts in thousands):

	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Total Balance
Assets
Cash and cash equivalents:
Money market mutual funds	$	41,494	$	—	$	41,494
Deposit accounts	—		448,494		448,494
Short-term investments:
Marketable equity securities	848		—		848
Total assets measured at fair value	$	42,342	$	448,494	$	490,836

Assets measured at fair value on a recurring basis at March 31, 2016 are as follows (amounts in thousands):

	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Total Balance
Assets
Cash and cash equivalents:
Money market mutual funds	$	1,787,446	$	—	$	1,787,446
Deposit accounts	—		305,305		305,305
Short-term investments:
Marketable equity securities	2,203		—		2,203
Corporate bonds and debt	—		1,000		1,000
Government agency bonds	—		350,081		350,081
Long-term investments:
Government agency bonds	—		118,549		118,549
Total assets measured at fair value	$	1,789,649	$	774,935	$	2,564,584