Stock-Based Compensation - Plans (Details) - shares	1 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2018
Stock options
Stock-Based Compensation
Expiration term		10 years
Vesting period		4 years
Stock options \| Vesting, Tranche 1
Stock-Based Compensation
Vesting period		1 year
Vesting (as a percent)		25.00%
Stock options \| Vesting, Tranche 2
Stock-Based Compensation
Period of monthly vesting		36 months
Monthly vesting (as a percent)		2.08%
Stock options \| Employee owning more than 10% of voting power
Stock-Based Compensation
Expiration term		5 years
Expiration term after termination		90 days
Expiration term after death or termination due to disability		1 year
Stock options \| Minimum \| Employee owning more than 10% of voting power
Stock-Based Compensation
Ownership (as a percent)		10.00%
Option price as percentage of fair market value of common stock on the date of grant		110.00%
2016 Plan
Stock-Based Compensation
Threshold limit to issue or transfer authorized shares (in shares)	800,000
Automatic increase on share reserve (as a percent)	5.00%
Additional shares authorized		964,876
Available for future grant (in shares)		598,178

Represents the option price as percentage of fair market value of common stock on the date of grant

No definition available.

Name:	trhc_OptionPriceAsPercentageOfFairMarketValueOfCommonStockOnGrantDate
Namespace Prefix:	trhc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Ownership of the entity as a percentage of voting power.

+ References

No definition available.

+ Details

Name:	trhc_OwnershipVotingPower
Namespace Prefix:	trhc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the percentage of stock awards vesting each month.

+ References

No definition available.

+ Details

Name:	trhc_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentagePerMonth
Namespace Prefix:	trhc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period from grant date that an equity-based award expires after death or termination due to disability, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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

- Definition

Period from grant date that an equity-based award expires after termination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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

- Definition

Represents threshold limit to issue or transfer authorized shares under the terms of the Plan.

+ References

No definition available.

+ Details

Name:	trhc_ShareBasedCompensationArrangementByShareBasedPaymentAwardThresholdLimitToIssueOrTransferAuthorizedShares
Namespace Prefix:	trhc_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Period of specified share-based compensation award differentiated by a particular vesting feature, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of vesting of share-based compensation awards.

+ References

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_AwardTypeAxis=trhc_EmployeeAndNonEmployeeStockOptionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TitleOfIndividualAxis=trhc_EmployeeOwningMoreThanTenPercentOfVotingPowerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_PlanNameAxis=trhc_EquityCompensationPlan2016Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: