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v3.8.0.1

Leases - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Operating Leased Assets [Line Items] |  |  |
Operating lease expiration year | 2025 |  |
Rent expense | $ 6,900 | $ 6,700 | $ 7,200
Related Party Transaction |  |  |
Operating Leased Assets [Line Items] |  |  |
Rent expense | $ 150 | $ 330 | $ 1,800

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- Definition Non cancellable operating leases expiration year. + References No definition available. + Details
Name: | tyl_NonCancellableOperatingLeasesExpirationYear
Namespace Prefix: | tyl_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OperatingLeasedAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_RelatedPartyTransactionAxis=tyl_RelatedPartyTransactionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |