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Leases - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Leased Assets [Line Items]
Operating lease expiration year	2026
Rent expense	$ 8,000,000	$ 6,900,000	$ 6,700,000
Related Party Transaction
Operating Leased Assets [Line Items]
Rent expense	$ 0	$ 150,000	$ 330,000

X

- 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

X

- 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

X

- 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

X

- Details

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