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    <link:label id="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_2126081776B83E34F82AB899B78EB53A_label_en-US" xlink:label="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_D3B55260C3FA5EC5838E85629622764A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Three Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_D3B55260C3FA5EC5838E85629622764A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_D3B55260C3FA5EC5838E85629622764A" xlink:to="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears_D3B55260C3FA5EC5838E85629622764A" xlink:type="arc" />
    <link:label id="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_5E49681A96D8CEE23167B899B78F2963_terseLabel_en-US" xlink:label="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_BF24BD2435B05B7E8D8B1B1D4DA64269" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2022</link:label>
    <link:label id="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_5E49681A96D8CEE23167B899B78F2963_label_en-US" xlink:label="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_BF24BD2435B05B7E8D8B1B1D4DA64269" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Four Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_BF24BD2435B05B7E8D8B1B1D4DA64269" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_BF24BD2435B05B7E8D8B1B1D4DA64269" xlink:to="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears_BF24BD2435B05B7E8D8B1B1D4DA64269" xlink:type="arc" />
    <link:label id="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears_9808C84FB4D254F6A5FDB899B78F6CDA_terseLabel_en-US" xlink:label="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears_722C36627C9B579DBA2A3AAB71C2B86C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2023</link:label>
    <link:label id="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears_9808C84FB4D254F6A5FDB899B78F6CDA_label_en-US" xlink:label="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears_722C36627C9B579DBA2A3AAB71C2B86C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Five Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears_722C36627C9B579DBA2A3AAB71C2B86C" xlink:type="locator" />
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    <link:label id="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter_193F84FF1B6CAEEC0A2BB899B78F3517_terseLabel_en-US" xlink:label="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter_172E78F834BB50A7AE4725AEE8EE9EE9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Thereafter</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter_172E78F834BB50A7AE4725AEE8EE9EE9" xlink:type="locator" />
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    <link:label id="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_A6B62B3C7C84575F892FB899B78F9539_verboseLabel_en-US" xlink:label="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_C9DBA4F6899056CBBD424A05F8830E8E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_A6B62B3C7C84575F892FB899B78F9539_label_en-US" xlink:label="lab_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_C9DBA4F6899056CBBD424A05F8830E8E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived" xlink:label="loc_us-gaap_SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived_C9DBA4F6899056CBBD424A05F8830E8E" xlink:type="locator" />
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    <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_3CC8524A6CD700945CFAC123F55C8D3B_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_3CC8524A6CD700945CFAC123F55C8D3B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
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    <link:label id="lab_us-gaap_AssetsAbstract_F2360D0F9B5E9D13966DC123F55C86E3_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract_F2360D0F9B5E9D13966DC123F55C86E3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ASSETS</link:label>
    <link:label id="lab_us-gaap_AssetsAbstract_F2360D0F9B5E9D13966DC123F55C86E3_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract_F2360D0F9B5E9D13966DC123F55C86E3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets [Abstract]</link:label>
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    <link:label id="lab_us-gaap_AssetsCurrentAbstract_F10E1D4BCF5E00386B08C123F55C0305_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_F10E1D4BCF5E00386B08C123F55C0305" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current assets</link:label>
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_F10E1D4BCF5E00386B08C123F55C0305_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_F10E1D4BCF5E00386B08C123F55C0305" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Current [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_F10E1D4BCF5E00386B08C123F55C0305" xlink:type="locator" />
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    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_B42C6DC8C5210AD25D70C123F55D7F4E_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_B42C6DC8C5210AD25D70C123F55D7F4E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_B42C6DC8C5210AD25D70C123F55D7F4E_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_B42C6DC8C5210AD25D70C123F55D7F4E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value</link:label>
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    <link:label id="lab_us-gaap_ShortTermInvestments_442037CF8019662E5E1BC123F55DC345_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermInvestments_442037CF8019662E5E1BC123F55DC345" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-term investments</link:label>
    <link:label id="lab_us-gaap_ShortTermInvestments_442037CF8019662E5E1BC123F55DC345_label_en-US" xlink:label="lab_us-gaap_ShortTermInvestments_442037CF8019662E5E1BC123F55DC345" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term Investments</link:label>
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    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_387827FBA3945614F860C123F55E855B_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_387827FBA3945614F860C123F55E855B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trade accounts receivable, net of allowance for doubtful accounts of $1,946 and $1,535 at September 28, 2019 and December 29, 2018, respectively</link:label>
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_387827FBA3945614F860C123F55E855B_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_387827FBA3945614F860C123F55E855B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Receivable, after Allowance for Credit Loss, Current</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_92A9E2EF8BDBC4E5D3ED1D2E8645365C_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_4CB87BFC596257C289409A78A741049D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, Payments, Due Year Three</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_B0F628C01A3C713EF9831D2E8645F27B_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_D59CB222ADAD5013B9D29E9A18FAC411" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, Payments, Due Year Four</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_9F879906D2EA6605C7191D2E8645B5B0_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_B2E01C26E1A358739A8D26E8E5AEB744" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2023</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_CB62249BD562F702F0CC1D2E864574F7_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_EB19E70052AF5BFB9B07C96177FE4A60" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_CB62249BD562F702F0CC1D2E864574F7_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_EB19E70052AF5BFB9B07C96177FE4A60" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, Payments, Due</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_EB19E70052AF5BFB9B07C96177FE4A60" xlink:type="locator" />
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    <link:loc xlink:href="masi-20190928.xsd#masi_EmploymentAgreementSeveranceTerms" xlink:label="loc_masi_EmploymentAgreementSeveranceTerms_BB18F9B17635ED782D64136249E9972E" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_AC2EBD83399241548715002D99C28906_terseLabel_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_AC2EBD83399241548715002D99C28906" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provision (benefit) from doubtful accounts</link:label>
    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_AC2EBD83399241548715002D99C28906_label_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_AC2EBD83399241548715002D99C28906" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Receivable, Credit Loss Expense (Reversal)</link:label>
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    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_8BC603A1CD50CAAA3A23002D99C2EA02_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_8BC603A1CD50CAAA3A23002D99C2EA02" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Tax Expense (Benefit)</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_FEE398316D872D3E24CC002D99C2411C" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_FEE398316D872D3E24CC002D99C2411C" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_B58B9EC12E6FFE9A1431002D99C2A1A5_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_B58B9EC12E6FFE9A1431002D99C2A1A5" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">(Increase) decrease in accounts receivable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_B58B9EC12E6FFE9A1431002D99C2A1A5_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_B58B9EC12E6FFE9A1431002D99C2A1A5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Accounts Receivable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_B58B9EC12E6FFE9A1431002D99C2A1A5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_B58B9EC12E6FFE9A1431002D99C2A1A5" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_B58B9EC12E6FFE9A1431002D99C2A1A5" xlink:type="arc" />
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    <link:label id="lab_us-gaap_IncreaseDecreaseInInventories_339E021775922AFE8C01002D99C38663_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories_339E021775922AFE8C01002D99C38663" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Inventories</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_339E021775922AFE8C01002D99C38663" xlink:type="locator" />
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    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherCurrentAssets_4BF5BD43EDD22F5F89D6002D99C3DE8D_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherCurrentAssets_4BF5BD43EDD22F5F89D6002D99C3DE8D" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Increase in other current assets</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherCurrentAssets_4BF5BD43EDD22F5F89D6002D99C3DE8D_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherCurrentAssets_4BF5BD43EDD22F5F89D6002D99C3DE8D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Other Current Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_4BF5BD43EDD22F5F89D6002D99C3DE8D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_4BF5BD43EDD22F5F89D6002D99C3DE8D" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherCurrentAssets_4BF5BD43EDD22F5F89D6002D99C3DE8D" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromLeasePayments_C5CADA622A4B4DA0F6A9002D99C30403_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromLeasePayments_C5CADA622A4B4DA0F6A9002D99C30403" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase in lease receivable, net</link:label>
    <link:label id="lab_us-gaap_ProceedsFromLeasePayments_C5CADA622A4B4DA0F6A9002D99C30403_label_en-US" xlink:label="lab_us-gaap_ProceedsFromLeasePayments_C5CADA622A4B4DA0F6A9002D99C30403" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Lease Payments</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_6ED52140A3159C930C16002D99C59F48" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_8B7EAE7E311AADA2B2C8002D99C5CF7B_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_8B7EAE7E311AADA2B2C8002D99C5CF7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_8B7EAE7E311AADA2B2C8002D99C5CF7B" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_8B7EAE7E311AADA2B2C8002D99C5CF7B" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquireShortTermInvestments_5F3E49292C8D142CDD8D002D99C6D6AC_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireShortTermInvestments_5F3E49292C8D142CDD8D002D99C6D6AC" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Purchases of short-term investments, net</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireShortTermInvestments_5F3E49292C8D142CDD8D002D99C6D6AC_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireShortTermInvestments_5F3E49292C8D142CDD8D002D99C6D6AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Short-term Investments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireShortTermInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireShortTermInvestments_5F3E49292C8D142CDD8D002D99C6D6AC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireShortTermInvestments_5F3E49292C8D142CDD8D002D99C6D6AC" xlink:to="lab_us-gaap_PaymentsToAcquireShortTermInvestments_5F3E49292C8D142CDD8D002D99C6D6AC" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_6D885518F7E6023F203F002D99C5A8CD_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_6D885518F7E6023F203F002D99C5A8CD" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchases of property and equipment, net</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_6D885518F7E6023F203F002D99C5A8CD_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_6D885518F7E6023F203F002D99C5A8CD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_6D885518F7E6023F203F002D99C5A8CD" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsToAcquireIntangibleAssets_8CDBB2A914C629AE2075002D99C5A282_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireIntangibleAssets_8CDBB2A914C629AE2075002D99C5A282" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Increase in intangible assets</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireIntangibleAssets" xlink:label="loc_us-gaap_PaymentsToAcquireIntangibleAssets_8CDBB2A914C629AE2075002D99C5A282" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PaymentsToAcquireLongtermInvestments_BA36EA5A4AD302FB9F28002D99C62AF9_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireLongtermInvestments_BA36EA5A4AD302FB9F28002D99C62AF9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business combination, net of cash acquired, and strategic investments</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireLongtermInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireLongtermInvestments_BA36EA5A4AD302FB9F28002D99C62AF9" xlink:type="locator" />
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_61E44332E7C98CAEF0B1002D99C6F57D_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_61E44332E7C98CAEF0B1002D99C6F57D" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used in investing activities</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_61E44332E7C98CAEF0B1002D99C6F57D" xlink:type="locator" />
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