Revenue - General (Details)	9 Months Ended
Sep. 30, 2018
Contract with customer
Revenue, Practical Expedient, Financing Component	true
Minimum
Contract with customer
Contract term	1 year
Termination notice period	0 days
Maximum
Contract with customer
Contract term	5 years
Termination notice period	180 days
Pharmacy cost management services
Contract with customer
Collection period after data submission	180 days

No definition available.

Name:	trhc_ContractWithCustomerAbstract
Namespace Prefix:	trhc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of contract with customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	trhc_ContractWithCustomerTerm
Namespace Prefix:	trhc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Termination notice period of contract with customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	trhc_ContractWithCustomerTerminationNoticePeriod
Namespace Prefix:	trhc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period within which revenue is collected after submission of data.

+ References

No definition available.

+ Details

Name:	trhc_RevenueCollectionPeriod
Namespace Prefix:	trhc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Indicates (true false) whether practical expedient was elected not to adjust consideration for effect of financing component when transfer and customer payment for product or service occurs within one year or less.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130569-203045

+ Details

Name:	us-gaap_RevenuePracticalExpedientFinancingComponent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ProductOrServiceAxis=trhc_PharmacyCostManagementServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: