Concentration of Business, Significant Customers and Credit Risk (Tables)

6 Months Ended

Sep. 30, 2017

Risks and Uncertainties [Abstract]

Schedule of long-lived assets, which consist of property and equipment, by major country

Property and equipment, net, in the US and all other countries combined were as follows:

	September 30, 2017		March 31, 2017
US	$	198,287	$	206,077
All other countries*	18,693		19,454
Total	$	216,980	$	225,531

Schedule of the Company's cash and cash equivalents

The Company's cash and cash equivalents are as follows:

	September 30, 2017		March 31, 2017
Money market fund accounts	$	166,866	$	198,992
Cash	63,720		92,772
Total cash and cash equivalents	$	230,586	$	291,764