$ZS
Zscaler, Inc. Stock $zs

$zs Overview Financials Valuation SEC Filings Company Website

2018 Q3 Form 10-K Financial Statement

#000162828018011833 Filed on September 13, 2018

Income Statement

Concept	2018 Q3	2018	2017 Q3
Revenue	$56.20M	$190.2M	$36.50M
YoY Change	53.97%	51.27%	54.66%
Cost Of Revenue	$11.50M	$37.88M	$8.000M
YoY Change	43.75%	37.87%	45.45%
Gross Profit	$44.70M	$152.3M	$28.50M
YoY Change	56.84%	55.02%	58.33%
Gross Profit Margin	79.54%	80.08%	78.08%
Selling, General & Admin	$41.10M	$147.5M	$33.00M
YoY Change	24.55%	47.9%	79.35%
% of Gross Profit	91.95%	96.88%	115.79%
Research & Development	$11.50M	$39.38M	$8.600M
YoY Change	33.72%	17.34%	56.36%
% of Gross Profit	25.73%	25.86%	30.18%
Depreciation & Amortization	$2.150M	$7.990M	$1.830M
YoY Change	17.49%	16.81%	28.87%
% of Gross Profit	4.81%	5.25%	6.42%
Operating Expenses	$52.60M	$186.9M	$41.60M
YoY Change	26.44%	40.21%	73.33%
Operating Profit	-$7.900M	-$34.62M	-$13.10M
YoY Change	-39.69%	-1.28%	118.33%
Interest Expense	$2.100M	$0.00	-$200.0K
YoY Change	-1150.0%	-100.0%	-50.0%
% of Operating Profit
Other Income/Expense, Net	-$800.0K	$79.00K	$300.0K
YoY Change	-366.67%	-173.83%	-25.0%
Pretax Income	-$6.600M	-$32.31M	-$12.90M
YoY Change	-48.84%	-6.58%	115.0%
Income Tax	$300.0K	$1.337M	$300.0K
% Of Pretax Income
Net Earnings	-$7.000M	-$33.65M	-$13.30M
YoY Change	-47.37%	-5.12%	114.52%
Net Earnings / Revenue	-12.46%	-17.69%	-36.44%
Basic Earnings Per Share
Diluted Earnings Per Share	-$58.72K	-$525.8K	-$113.4K
COMMON SHARES
Basic Shares Outstanding	119.8M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2018 Q3	2018	2017 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$298.5M	$298.5M	$87.98M
YoY Change	239.33%	239.2%
Cash & Equivalents	$135.6M	$135.6M	$87.98M
Short-Term Investments	$163.0M	$163.0M	$0.00
Other Short-Term Assets	$27.00M	$27.00M	$15.90M
YoY Change	69.81%	69.81%
Inventory
Prepaid Expenses
Receivables	$61.61M	$61.60M	$39.05M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$387.2M	$387.2M	$142.9M
YoY Change	170.92%	170.96%
LONG-TERM ASSETS
Property, Plant & Equipment	$19.77M	$19.80M	$13.14M
YoY Change	50.43%	51.15%
Goodwill	$0.00
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$1.078M	$40.90M	$2.661M
YoY Change	-59.49%	52.04%
Total Long-Term Assets	$60.62M	$60.60M	$39.99M
YoY Change	51.57%	51.5%
TOTAL ASSETS
Total Short-Term Assets	$387.2M	$387.2M	$142.9M
Total Long-Term Assets	$60.62M	$60.60M	$39.99M
Total Assets	$447.8M	$447.8M	$182.9M
YoY Change	144.82%	144.83%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$4.895M	$4.900M	$3.763M
YoY Change	30.08%	28.95%
Accrued Expenses	$35.70M	$35.70M	$23.30M
YoY Change	53.22%	53.22%
Deferred Revenue	$140.7M		$85.47M
YoY Change	64.59%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$182.8M	$182.8M	$120.5M
YoY Change	51.78%	51.7%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$1.360M	$24.70M	$1.457M
YoY Change	-6.66%	96.03%
Total Long-Term Liabilities	$1.360M	$24.70M	$1.457M
YoY Change	-6.66%	96.03%
TOTAL LIABILITIES
Total Short-Term Liabilities	$182.8M	$182.8M	$120.5M
Total Long-Term Liabilities	$1.360M	$24.70M	$1.457M
Total Liabilities	$207.5M	$207.5M	$133.1M
YoY Change	55.97%	55.9%
SHAREHOLDERS EQUITY
Retained Earnings	-$196.1M		-$162.0M
YoY Change	21.04%
Common Stock	$119.0K		$18.00K
YoY Change	561.11%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$240.2M	$240.2M	-$151.1M
YoY Change
Total Liabilities & Shareholders Equity	$447.8M	$447.8M	$182.9M
YoY Change	144.82%	144.83%

Cashflow Statement

Concept	2018 Q3	2018	2017 Q3
OPERATING ACTIVITIES
Net Income	-$7.000M	-$33.65M	-$13.30M
YoY Change	-47.37%	-5.12%	114.52%
Depreciation, Depletion And Amortization	$2.150M	$7.990M	$1.830M
YoY Change	17.49%	16.81%	28.87%
Cash From Operating Activities	$14.66M	$17.31M	-$3.710M
YoY Change	-495.15%	-387.54%	-30.91%
INVESTING ACTIVITIES
Capital Expenditures	-$2.740M	$13.40M	-$1.730M
YoY Change	58.38%	72.13%	50.43%
Acquisitions		$0.00
YoY Change
Other Investing Activities	-$162.9M	-$433.0K	$0.00
YoY Change
Cash From Investing Activities	-$165.7M	-$178.1M	-$1.730M
YoY Change	9476.3%	2078.9%	50.43%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$3.811M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-850.0K	$208.4M	6.230M
YoY Change	-113.64%	2094.35%	1787.88%
NET CHANGE
Cash From Operating Activities	14.66M	$17.31M	-3.710M
Cash From Investing Activities	-165.7M	-$178.1M	-1.730M
Cash From Financing Activities	-850.0K	$208.4M	6.230M
Net Change In Cash	-151.9M	$47.60M	790.0K
YoY Change	-19322.78%	-1113.65%	-112.76%
FREE CASH FLOW
Cash From Operating Activities	$14.66M	$17.31M	-$3.710M
Capital Expenditures	-$2.740M	$13.40M	-$1.730M
Free Cash Flow	$17.40M	$3.910M	-$1.980M
YoY Change	-978.79%	-128.33%	-53.08%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-07-31
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0001713683
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CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2018Q1	dei	Entity Public Float EntityPublicFloat	1500000000	USD
CY2018	dei	Entity Registrant Name EntityRegistrantName	Zscaler, Inc.
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CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.028
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.038
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.005
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003
CY2018Q3	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	303000	USD
CY2017Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	0	USD
CY2018Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	6118000	USD
CY2017Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	571000	USD
CY2018Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	784000	USD
CY2017Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	2807000	USD
CY2018Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	2863000	USD
CY2015Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	31483000	USD
CY2016Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	40299000	USD
CY2017Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	51493000	USD
CY2018Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	45578000	USD
CY2017Q3	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	12331000	USD
CY2018Q3	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	12561000	USD
CY2016	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.36
CY2017	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.54
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.63
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.017
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.025
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.041
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.325
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.324
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.335
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.586
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.001
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.017
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.017
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.018
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.015
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.037
CY2017Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	11608000	USD
CY2018Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	23393000	USD
CY2016	us-gaap	Foreign Currency Transaction Loss Before Tax ForeignCurrencyTransactionLossBeforeTax	300000	USD
CY2017	us-gaap	Foreign Currency Transaction Loss Before Tax ForeignCurrencyTransactionLossBeforeTax	100000	USD
CY2018	us-gaap	Foreign Currency Transaction Loss Before Tax ForeignCurrencyTransactionLossBeforeTax	100000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9399000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	20521000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	31135000	USD
CY2016	us-gaap	Gross Profit GrossProfit	60198000	USD
CY2017	us-gaap	Gross Profit GrossProfit	98245000	USD
CY2018	us-gaap	Gross Profit GrossProfit	152299000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-28227000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-36874000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-36455000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-26970000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-34583000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-32309000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1257000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	2291000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	4146000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-26970000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-34583000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-32309000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	468000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	877000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1337000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	319000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	385000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	870000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	563000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	2249000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-779000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	6188000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	14563000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	22559000	USD
CY2016	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	2085000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	5376000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	2076000	USD
CY2016	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	2601000	USD
CY2017	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	5246000	USD
CY2018	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	11785000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	115000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2718000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	5068000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	400000	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	168000	USD
CY2018	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	289000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	597000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	2236000	USD
CY2017Q3	us-gaap	Interest Receivable InterestReceivable	400000	USD
CY2018Q3	us-gaap	Interest Receivable InterestReceivable	100000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1400000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1700000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	2500000	USD
CY2016Q3	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	1500000	USD
CY2017Q3	us-gaap	Liabilities Liabilities	133067000	USD
CY2018Q3	us-gaap	Liabilities Liabilities	207545000	USD
CY2017Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	182902000	USD
CY2018Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	447781000	USD
CY2017Q3	us-gaap	Liabilities Current LiabilitiesCurrent	120459000	USD
CY2018Q3	us-gaap	Liabilities Current LiabilitiesCurrent	182832000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	27563000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	9497000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	208397000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6647000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-8342000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-178103000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-11916000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-6019000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	17307000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	-27438000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	-35460000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-33646000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-36086000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-45030000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-39978000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-416000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-107000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	79000	USD
CY2017Q3	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	7900000	USD
CY2018Q3	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	2100000	USD
CY2016	us-gaap	Notes Issued1 NotesIssued1	4373000	USD
CY2017	us-gaap	Notes Issued1 NotesIssued1	0	USD
CY2018	us-gaap	Notes Issued1 NotesIssued1	0	USD
CY2018	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2018	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2016	us-gaap	Operating Expenses OperatingExpenses	87041000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	133318000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	186923000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	-26843000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	-35073000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	-34624000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	6706000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	2834000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	1598000	USD
CY2018Q3	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	2274000	USD
CY2017Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2661000	USD
CY2018Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1078000	USD
CY2018Q3	us-gaap	Other Commitment OtherCommitment	11522000	USD
CY2018Q3	us-gaap	Other Commitment Due In Fourth Year OtherCommitmentDueInFourthYear	179000	USD
CY2018Q3	us-gaap	Other Commitment Due In Next Twelve Months OtherCommitmentDueInNextTwelveMonths	6280000	USD
CY2018Q3	us-gaap	Other Commitment Due In Second Year OtherCommitmentDueInSecondYear	3763000	USD
CY2018Q3	us-gaap	Other Commitment Due In Third Year OtherCommitmentDueInThirdYear	1300000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-124000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-124000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-124000	USD
CY2017Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1457000	USD
CY2018Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1360000	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	59000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	89000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-130000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-433000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3811000	USD
CY2018Q1	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	15500000	USD
CY2016	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
CY2017	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	31000	USD
CY2018	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	4336000	USD
CY2016	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	163366000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5402000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7783000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13397000	USD
CY2016	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	845000	USD
CY2017	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	391000	USD
CY2018	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	1773000	USD
CY2017Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2018Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2018Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2017Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	73100000	shares
CY2018Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000	shares
CY2018Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000	shares
CY2017Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2017Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2017Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	5410000	USD
CY2018Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	10878000	USD
CY2016	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	0	USD
CY2017	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	0	USD
CY2018	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	205344000	USD
CY2016	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	24957000	USD
CY2017	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2018	us-gaap	Proceeds From Repayment Of Loans To Purchase Common Stock ProceedsFromRepaymentOfLoansToPurchaseCommonStock	5700000	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	991000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2971000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4985000	USD
CY2017Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	30443000	USD
CY2018Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	44166000	USD
CY2017Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	13139000	USD
CY2018Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	19765000	USD
CY2017Q3	us-gaap	Purchase Obligation PurchaseObligation	2200000	USD
CY2018Q3	us-gaap	Purchase Obligation PurchaseObligation	3100000	USD
CY2017Q3	us-gaap	Receivable From Shareholders Or Affiliates For Issuance Of Capital Stock ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock	7878000	USD
CY2018Q3	us-gaap	Receivable From Shareholders Or Affiliates For Issuance Of Capital Stock ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock	2051000	USD
CY2016Q4	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	4400000	USD
CY2016	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	20940000	USD
CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	33561000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	39379000	USD
CY2017Q3	us-gaap	Restricted Cash RestrictedCash	600000	USD
CY2018Q3	us-gaap	Restricted Cash RestrictedCash	600000	USD
CY2017Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-162016000	USD
CY2018Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-196100000	USD
CY2016	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	80325000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	125717000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	190174000	USD
CY2018Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	397900000	USD
CY2018Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod	P12M
CY2018Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod	P3Y
CY2018Q1	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	205300000	USD
CY2018Q1	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	13800000	shares
CY2018Q1	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	16.00
CY2016	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	56702000	USD
CY2018Q1	us-gaap	Stock Issued During Period Shares Conversion Of Convertible Securities StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities	72500750	shares
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1892000	shares
CY2017	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	79236000	USD
CY2018	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	116409000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	3617000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	9919000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	11224000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1	P4Y
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	739000	shares
CY2018Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	13471000	shares
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	5907000	shares
CY2018Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	5499000	shares
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	3.67
CY2018Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	3.97
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CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4500000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	16688000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	2012000	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	5.90
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	5021000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	1.68
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	2.10
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.77
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	56717000	USD
CY2018Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	470860000	USD
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	15058000	shares
CY2018Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	16175000	shares
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	4.50
CY2018Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	6.20
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	3.09
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	10.02
CY2017Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	27135000	USD
CY2018Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	172317000	USD
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y10M25D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y7M6D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y1M6D
CY2016	us-gaap	Stock Issued1 StockIssued1	2862000	USD
CY2017	us-gaap	Stock Issued1 StockIssued1	3702000	USD
CY2018	us-gaap	Stock Issued1 StockIssued1	3255000	USD
CY2018	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	207309000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	198880000	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	991000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2971000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	4985000	USD
CY2016	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	-2931000	USD
CY2017	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	-263000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	-214000	USD
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	4000000	USD
CY2015Q3	us-gaap	Stockholders Equity StockholdersEquity	-95332000	USD
CY2016Q3	us-gaap	Stockholders Equity StockholdersEquity	-124740000	USD
CY2017Q3	us-gaap	Stockholders Equity StockholdersEquity	-151142000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	240236000	USD
CY2018Q1	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	0.6667
CY2016	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	8648000	USD
CY2016	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	8600000	USD
CY2017	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	9570000	USD
CY2017	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	9600000	USD
CY2018	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	6300000	USD
CY2018	us-gaap	Temporary Equity Accretion To Redemption Value TemporaryEquityAccretionToRedemptionValue	6332000	USD
CY2016	us-gaap	Temporary Equity Accretion To Redemption Value Adjustment TemporaryEquityAccretionToRedemptionValueAdjustment	8648000	USD
CY2017	us-gaap	Temporary Equity Accretion To Redemption Value Adjustment TemporaryEquityAccretionToRedemptionValueAdjustment	9570000	USD
CY2018	us-gaap	Temporary Equity Accretion To Redemption Value Adjustment TemporaryEquityAccretionToRedemptionValueAdjustment	6332000	USD
CY2015Q3	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	157802000	USD
CY2016Q3	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	191407000	USD
CY2017Q3	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	200977000	USD
CY2018Q3	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	0	USD
CY2018Q1	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	207300000	USD
CY2017Q3	us-gaap	Temporary Equity Liquidation Preference TemporaryEquityLiquidationPreference	201376000	USD
CY2018Q3	us-gaap	Temporary Equity Liquidation Preference TemporaryEquityLiquidationPreference	0	USD
CY2017Q3	us-gaap	Temporary Equity Par Or Stated Value Per Share TemporaryEquityParOrStatedValuePerShare	0.001
CY2018Q3	us-gaap	Temporary Equity Par Or Stated Value Per Share TemporaryEquityParOrStatedValuePerShare	0.001
CY2017Q3	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	73100000	shares
CY2017Q3	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	73100000	shares
CY2018Q3	us-gaap	Temporary Equity Shares Authorized TemporaryEquitySharesAuthorized	0	shares
CY2017Q3	us-gaap	Temporary Equity Shares Issued TemporaryEquitySharesIssued	72501000	shares
CY2017Q3	us-gaap	Temporary Equity Shares Issued TemporaryEquitySharesIssued	72501000	shares
CY2018Q3	us-gaap	Temporary Equity Shares Issued TemporaryEquitySharesIssued	0	shares
CY2015Q3	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	69712000	shares
CY2016Q3	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	72501000	shares
CY2017Q3	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	72501000	shares
CY2017Q3	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	72501000	shares
CY2018Q3	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	0	shares
CY2018Q3	us-gaap	Temporary Equity Shares Outstanding TemporaryEquitySharesOutstanding	0	shares
CY2016	us-gaap	Temporary Equity Stock Issued During Period Value New Issues TemporaryEquityStockIssuedDuringPeriodValueNewIssues	24957000	USD
CY2017Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2018Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2600000	USD
CY2018Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2622000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	876000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1746000	USD
CY2016	us-gaap	Valuation Allowances And Reserves Period Increase Decrease ValuationAllowancesAndReservesPeriodIncreaseDecrease	8800000	USD
CY2017	us-gaap	Valuation Allowances And Reserves Period Increase Decrease ValuationAllowancesAndReservesPeriodIncreaseDecrease	11200000	USD
CY2017	us-gaap	Valuation Allowances And Reserves Period Increase Decrease ValuationAllowancesAndReservesPeriodIncreaseDecrease	11194000	USD
CY2018	us-gaap	Valuation Allowances And Reserves Period Increase Decrease ValuationAllowancesAndReservesPeriodIncreaseDecrease	-5915000	USD
CY2018	us-gaap	Valuation Allowances And Reserves Period Increase Decrease ValuationAllowancesAndReservesPeriodIncreaseDecrease	-5900000	USD
CY2018	zs	Deferred Offering Costs Accrued But Not Paid DeferredOfferingCostsAccruedButNotPaid	940000	USD
CY2016	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	26521000.00	shares
CY2016	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	26521000	shares
CY2017	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	29221000.00	shares
CY2017	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	29221000	shares
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	63881000	shares
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	63881000.00	shares
CY2017Q3	zs	Accrued Liabilities And Other Liabilities Current AccruedLiabilitiesAndOtherLiabilitiesCurrent	11648000	USD
CY2018Q3	zs	Accrued Liabilities And Other Liabilities Current AccruedLiabilitiesAndOtherLiabilitiesCurrent	12313000	USD
CY2016	zs	Adjustments To Additional Paid In Capital Early Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalEarlyExerciseOfStockOptions	2862000	USD
CY2017	zs	Adjustments To Additional Paid In Capital Early Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalEarlyExerciseOfStockOptions	3702000	USD
CY2018	zs	Adjustments To Additional Paid In Capital Early Exercise Of Stock Options AdjustmentsToAdditionalPaidInCapitalEarlyExerciseOfStockOptions	3255000	USD
CY2018	zs	Adjustments To Additional Paid In Capital Share Based Compensation Realization Of Deferred Tax Asset AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRealizationOfDeferredTaxAsset	900000	USD
CY2016	zs	Capitalization Of Contract Acquisition Costs CapitalizationOfContractAcquisitionCosts	13502000	USD
CY2017	zs	Capitalization Of Contract Acquisition Costs CapitalizationOfContractAcquisitionCosts	21999000	USD
CY2018	zs	Capitalization Of Contract Acquisition Costs CapitalizationOfContractAcquisitionCosts	34429000	USD
CY2018Q3	zs	Capitalized Contract Cost Amortization Period CapitalizedContractCostAmortizationPeriod	P5Y
CY2016Q3	zs	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	6743000	USD
CY2017Q3	zs	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	10469000	USD
CY2018Q3	zs	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	16136000	USD
CY2016Q3	zs	Capitalized Contract Cost Net Noncurrent CapitalizedContractCostNetNoncurrent	14394000	USD
CY2017Q3	zs	Capitalized Contract Cost Net Noncurrent CapitalizedContractCostNetNoncurrent	24193000	USD
CY2018Q3	zs	Capitalized Contract Cost Net Noncurrent CapitalizedContractCostNetNoncurrent	39774000	USD
CY2016	zs	Capitalized Leasehold Improvements Paid By Landlord CapitalizedLeaseholdImprovementsPaidByLandlord	1491000	USD
CY2017	zs	Capitalized Leasehold Improvements Paid By Landlord CapitalizedLeaseholdImprovementsPaidByLandlord	0	USD
CY2018	zs	Capitalized Leasehold Improvements Paid By Landlord CapitalizedLeaseholdImprovementsPaidByLandlord	0	USD
CY2018Q3	zs	Cash Equivalents And Available For Sale Securities At Cost CashEquivalentsAndAvailableForSaleSecuritiesAtCost	267988000	USD
CY2018Q3	zs	Cash Equivalents And Short Term Investments Estimated Fair Value CashEquivalentsAndShortTermInvestmentsEstimatedFairValue	267864000	USD
CY2018Q3	zs	Cash Equivalents And Short Term Investments Gross Unrealized Gains CashEquivalentsAndShortTermInvestmentsGrossUnrealizedGains	1000	USD
CY2018Q3	zs	Cash Equivalents And Short Term Investments Gross Unrealized Losses CashEquivalentsAndShortTermInvestmentsGrossUnrealizedLosses	125000	USD
CY2018Q3	zs	Cash Equivalents Gross Unrealized Gains CashEquivalentsGrossUnrealizedGains	0	USD
CY2018Q3	zs	Cash Equivalents Gross Unrealized Losses CashEquivalentsGrossUnrealizedLosses	1000	USD
CY2018Q1	zs	Common Stock Number Of Votes Per Share CommonStockNumberOfVotesPerShare	1	vote
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CY2018Q3	zs	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	0	USD
CY2018Q3	zs	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2018Q3	zs	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	157016000	USD
CY2018Q3	zs	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	124000	USD
CY2018Q3	zs	Debt Securities Available For Sale Maturity After One Through Two Years Amortized Cost DebtSecuritiesAvailableForSaleMaturityAfterOneThroughTwoYearsAmortizedCost	46186000	USD
CY2018Q3	zs	Debt Securities Available For Sale Maturity After One Through Two Years Fair Value DebtSecuritiesAvailableForSaleMaturityAfterOneThroughTwoYearsFairValue	46117000	USD
CY2018Q3	zs	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	157016000	USD
CY2018Q3	zs	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	124000	USD
CY2016	zs	Deferred Offering Costs Accrued But Not Paid DeferredOfferingCostsAccruedButNotPaid	0	USD
CY2017	zs	Deferred Offering Costs Accrued But Not Paid DeferredOfferingCostsAccruedButNotPaid	1157000	USD
CY2016	zs	Depreciation Depletion And Amortization Excluding Amortization Of Deferred Contract Costs DepreciationDepletionAndAmortizationExcludingAmortizationOfDeferredContractCosts	4872000	USD
CY2017	zs	Depreciation Depletion And Amortization Excluding Amortization Of Deferred Contract Costs DepreciationDepletionAndAmortizationExcludingAmortizationOfDeferredContractCosts	6840000	USD
CY2018	zs	Depreciation Depletion And Amortization Excluding Amortization Of Deferred Contract Costs DepreciationDepletionAndAmortizationExcludingAmortizationOfDeferredContractCosts	7988000	USD
CY2017Q3	zs	Early Exercised Stock Options Liability Current EarlyExercisedStockOptionsLiabilityCurrent	7972000	USD
CY2018Q3	zs	Early Exercised Stock Options Liability Current EarlyExercisedStockOptionsLiabilityCurrent	1561000	USD
CY2016	zs	Effective Income Tax Rate Reconciliation Provision To Return Adjustments EffectiveIncomeTaxRateReconciliationProvisionToReturnAdjustments	0.000
CY2017	zs	Effective Income Tax Rate Reconciliation Provision To Return Adjustments EffectiveIncomeTaxRateReconciliationProvisionToReturnAdjustments	-0.003
CY2018	zs	Effective Income Tax Rate Reconciliation Provision To Return Adjustments EffectiveIncomeTaxRateReconciliationProvisionToReturnAdjustments	0.028
CY2017Q4	zs	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	900000	USD
CY2016	zs	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	13502000	USD
CY2017	zs	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	21999000	USD
CY2018	zs	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	34429000	USD
CY2016	zs	Increase Decrease In Contract With Customer Liability Deferred Revenue IncreaseDecreaseInContractWithCustomerLiabilityDeferredRevenue	16133000	USD
CY2017	zs	Increase Decrease In Contract With Customer Liability Deferred Revenue IncreaseDecreaseInContractWithCustomerLiabilityDeferredRevenue	30706000	USD
CY2018	zs	Increase Decrease In Contract With Customer Liability Deferred Revenue IncreaseDecreaseInContractWithCustomerLiabilityDeferredRevenue	67404000	USD
CY2016	zs	Increase Decrease To Notes Receivable Related To Early Exercised Stock Options IncreaseDecreaseToNotesReceivableRelatedToEarlyExercisedStockOptions	-4556000	USD
CY2017	zs	Increase Decrease To Notes Receivable Related To Early Exercised Stock Options IncreaseDecreaseToNotesReceivableRelatedToEarlyExercisedStockOptions	-83000	USD
CY2018	zs	Increase Decrease To Notes Receivable Related To Early Exercised Stock Options IncreaseDecreaseToNotesReceivableRelatedToEarlyExercisedStockOptions	267000	USD
CY2017	zs	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
CY2018	zs	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
CY2018	zs	Payments For Underwriting Discount PaymentsForUnderwritingDiscount	15456000	USD
CY2016	zs	Proceeds From Repayment Of Notes Receivable Stockholders ProceedsFromRepaymentOfNotesReceivableStockholders	833000	USD
CY2017	zs	Proceeds From Repayment Of Notes Receivable Stockholders ProceedsFromRepaymentOfNotesReceivableStockholders	1856000	USD
CY2018	zs	Proceeds From Repayment Of Notes Receivable Stockholders ProceedsFromRepaymentOfNotesReceivableStockholders	5346000	USD
CY2016	zs	Proceeds From Stock Options Related To Early Exercise ProceedsFromStockOptionsRelatedToEarlyExercise	782000	USD
CY2017	zs	Proceeds From Stock Options Related To Early Exercise ProceedsFromStockOptionsRelatedToEarlyExercise	4701000	USD
CY2018	zs	Proceeds From Stock Options Related To Early Exercise ProceedsFromStockOptionsRelatedToEarlyExercise	869000	USD
CY2016	zs	Repayment Of Notes Receivable Stockholders RepaymentOfNotesReceivableStockholders	-833000	USD
CY2017	zs	Repayment Of Notes Receivable Stockholders RepaymentOfNotesReceivableStockholders	-1856000	USD
CY2018	zs	Repayment Of Notes Receivable Stockholders RepaymentOfNotesReceivableStockholders	-5346000	USD
CY2016	zs	Repurchase Of Common Stock Noncash RepurchaseOfCommonStockNoncash	2931000	USD
CY2017	zs	Repurchase Of Common Stock Noncash RepurchaseOfCommonStockNoncash	263000	USD
CY2018	zs	Repurchase Of Common Stock Noncash RepurchaseOfCommonStockNoncash	214000	USD
CY2018Q3	zs	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.53
CY2018Q3	zs	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.96
CY2018	zs	Sharebased Compensation Arrangements By Sharebased Payment Award Options Repurchases In Period Weighted Average Exercise Price SharebasedCompensationArrangementsBySharebasedPaymentAwardOptionsRepurchasesInPeriodWeightedAverageExercisePrice	5.11
CY2016	zs	Stock Issued During Period Value Early Exercised Stock Options StockIssuedDuringPeriodValueEarlyExercisedStockOptions	0	USD
CY2017	zs	Stock Issued During Period Value Early Exercised Stock Options StockIssuedDuringPeriodValueEarlyExercisedStockOptions	0	USD
CY2018	zs	Stock Issued During Period Value Early Exercised Stock Options StockIssuedDuringPeriodValueEarlyExercisedStockOptions	0	USD
CY2015	zs	Stock Issued During Period Value Exercise Of Unvested Stock Options StockIssuedDuringPeriodValueExerciseOfUnvestedStockOptions	6600000	USD
CY2016	zs	Stock Issued During Period Value Exercise Of Unvested Stock Options StockIssuedDuringPeriodValueExerciseOfUnvestedStockOptions	4400000	USD
CY2018	zs	Stock Repurchased During Period Cash Paid StockRepurchasedDuringPeriodCashPaid	3800000	USD
CY2018	zs	Stock Repurchased During Period Decrease In Notes Receivable StockRepurchasedDuringPeriodDecreaseInNotesReceivable	200000	USD
CY2018	zs	Stock Repurchased During Period Shares Available For Grant StockRepurchasedDuringPeriodSharesAvailableForGrant	787000	shares
CY2018	zs	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Deferred Tax Asset Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredTaxAssetIncomeTaxExpenseBenefit	-19700000	USD
CY2018	zs	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Valuation Allowance Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateValuationAllowanceExpenseBenefit	-19700000	USD
CY2018	zs	Tax Cuts And Jobs Act Of2017 One Time Repatriation Tax TaxCutsAndJobsActOf2017OneTimeRepatriationTax	1000000	USD
CY2018Q1	zs	Temporary Equity Accretion Value TemporaryEquityAccretionValue	24700000	USD
CY2018	zs	Temporary Equity Shares Elimination As Part Of Reorganization TemporaryEquitySharesEliminationAsPartOfReorganization	72501000	shares
CY2016	zs	Temporary Equity Stock Issued During Period Shares New Issues TemporaryEquityStockIssuedDuringPeriodSharesNewIssues	2789000	shares
CY2018	zs	Temporary Equity Value Elimination As Part Of Reorganization TemporaryEquityValueEliminationAsPartOfReorganization	207309000	USD
CY2018	us-gaap	Advertising Cost Policy Expensed Advertising Cost AdvertisingCostPolicyExpensedAdvertisingCost	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:144%;padding-bottom:0px;padding-top:8px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:bold;">Advertising Expenses</font></div><div style="line-height:144%;padding-bottom:12px;padding-top:16px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;">Advertising expenses are charged to sales and marketing expense in the consolidated statements of operations as incurred.</font></div></div>
CY2018	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:144%;padding-bottom:12px;padding-top:8px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:bold;">Concentration of Risks </font></div><div style="line-height:144%;padding-bottom:12px;padding-top:16px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;">We generate revenue primarily from sale of subscriptions to access our cloud platform, together with related support services. Our sales team, along with our channel partner network of global telecommunications service providers, system integrators and value-added resellers (collectively "channel partners"), sells our services worldwide to organizations of all sizes. Due to the nature of our services and the terms and conditions of our contracts with our channel partners, our business could be affected unfavorably if we are not able to continue our relationships with them. </font></div><div style="line-height:144%;padding-bottom:12px;padding-top:16px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;">Our financial instruments that are exposed to concentrations of credit risk consist primarily of cash, cash equivalents, short-term investments and accounts receivable. Although we deposit our cash with multiple financial institutions, the deposits, at times, may exceed federally insured limits. Cash equivalents and short-term investments consist of highly liquid investments in money market funds, U.S. treasury, U.S. agency securities and corporate debt securities, which are invested through financial institutions in the United States.</font></div><div style="line-height:144%;padding-bottom:12px;padding-top:16px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;">We grant credit to our customers in the normal course of business. We monitor the financial condition of our customers to reduce credit risk. </font></div></div>
CY2018	us-gaap	Fiscal Period FiscalPeriod	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:144%;padding-bottom:12px;padding-top:8px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:bold;">Fiscal Year </font></div><div style="line-height:144%;padding-bottom:12px;padding-top:16px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;">Our fiscal year ends on July 31. References to fiscal </font><font style="font-family:Times New Roman;font-size:10pt;">2018</font><font style="font-family:Times New Roman;font-size:10pt;">, for example, refer to our fiscal year ended </font><font style="font-family:Times New Roman;font-size:10pt;">July 31, 2018</font><font style="font-family:Times New Roman;font-size:10pt;">.</font></div></div>
CY2018	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:144%;padding-bottom:0px;padding-top:8px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:bold;">Warranties and Indemnification</font></div><div style="line-height:144%;padding-bottom:12px;padding-top:16px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;">Our cloud platform is generally warranted to be free of defects under normal use and to perform substantially in accordance with the subscription agreement. Additionally, our contracts generally include provisions for indemnifying customers and channel partners against liabilities if our services infringe or misappropriate a third party’s intellectual property rights. Costs and liabilities incurred as a result of warranties and indemnification obligations were not material during the periods presented.</font></div></div>
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:144%;padding-bottom:12px;padding-top:24px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates </font></div><div style="line-height:144%;padding-bottom:12px;padding-top:16px;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;">The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates, judgments and assumptions that affect the amounts reported and disclosed in the financial statements and accompanying notes. Such estimates include, but are not limited to, the determination of revenue recognition, deferred revenue, deferred contract acquisition costs, the period of benefit generated from our deferred contract acquisition costs, allowance for doubtful accounts, valuation of common stock options and stock-based awards, useful lives of property and equipment, loss contingencies related to litigation and valuation of deferred tax assets. Management determines these estimates and assumptions on historical experience and on various other assumptions that are believed to be reasonable. Actual results could differ significantly from these estimates, and such differences may be material to the consolidated financial statements.</font></div></div>

Files In Submission

Name	View Source	Status
0001628280-18-011833-index-headers.html	Edgar Link	pending
0001628280-18-011833-index.html	Edgar Link	pending
0001628280-18-011833.txt	Edgar Link	pending
0001628280-18-011833-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
zs-20180731.xml	Edgar Link	completed
zs-20180731.xsd	Edgar Link	pending
zs-20180731_cal.xml	Edgar Link	unprocessable
zs-20180731_def.xml	Edgar Link	unprocessable
zs-20180731_lab.xml	Edgar Link	unprocessable
zs-20180731_pre.xml	Edgar Link	unprocessable
zs2018a02.jpg	Edgar Link	pending
zs7311810-k.htm	Edgar Link	pending
zsexhibit211q4fy1810k.htm	Edgar Link	pending
zsexhibit231q4fy1810k.htm	Edgar Link	pending
zsexhibit311q4fy1810k.htm	Edgar Link	pending
zsexhibit312q4fy1810k.htm	Edgar Link	pending
zsexhibit321q4fy1810k.htm	Edgar Link	pending

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2018 Q3 Form 10-K Financial Statement

#000162828018011833 Filed on September 13, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ZS Zscaler, Inc. Stock $zs

2018 Q3 Form 10-K Financial Statement

#000162828018011833 Filed on September 13, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ZS
Zscaler, Inc. Stock $zs