Acquisitions (Details) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
Apr. 30, 2018	Sep. 30, 2018
Assets acquired:
Goodwill		$ 300
Business Acquisition, Description of Acquired Entity	<p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0">In April 2018, the Company entered into an asset purchase agreement with MarianaIQ, Inc. The total aggregate purchase price consisted of cash paid at closing and cash deposited into escrow to be held for fifteen months as security against indemnity claims made by the Company after the closing date. See Note 11 for additional information.</p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"> </p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"> </p>
MarianaIQ
Assets acquired:
Intangible assets		3,200
Goodwill	$ 300
Net identifiable assets acquired		3,200
Total consideration transferred		$ 3,500
Cash	2,600
Contingent payments	900
Total purchase price	$ 3,500
Business Acquisition, Name of Acquired Entity	MarianaIQ Inc.
Business Acquisition, Description of Acquired Entity	<p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"><i>MarianaIQ</i></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0">On April 12, 2018, the Company entered into an Asset Purchase Agreement (the "Agreement") with MarianaIQ Inc. (MarianaIQ) for the purchase of certain assets of MarianaIQ. The total aggregate purchase price consisted of cash paid to MarianaIQ at closing, and cash to be held in escrow by the Company for fifteen months, as security against indemnity claims asserted by the Company after the closing date. The escrow amount is recorded as other accrued liabilities on the consolidated balance sheets as of September 30, 2018.</p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p>
Business Combination, Assets and Liabilities, Description	<p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0">The Company recorded the acquired developed technology as an identifiable intangible asset with an estimated useful life of two years. The fair value of the technology was based on estimates and assumptions made by management using a cost approach method. The intangible asset is amortized on a straight-line basis over two years.</p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0">The excess of the consideration transferred over the aggregate fair value of the asset acquired was recorded as goodwill. The amount of goodwill recognized was primarily attributable to the expected contributions of the entity to the overall corporate strategy in addition to the acquired workforce.</p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0">MarianaIQ did not contribute materially to revenue or net loss for the period of acquisition to September 30, 2018. Goodwill recognized upon acquisition is expected to be deductible for income tax purposes and is included in the Americas reporting unit (see Note 5). Total acquisition costs were immaterial.</p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"> </p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"></p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"> </p> <p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0; margin-left: 0"> </p>

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