Software Development Costs (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Software Development Costs
Software development costs	$ 10,884		$ 9,873
Less: accumulated amortization	(5,558)		(4,872)
Software development costs, net	5,326		5,001
Capitalized software costs not yet subject to amortization	1,592		$ 1,021
Amortization expense	$ 686	$ 400

The carrying amount of capitalized computer software costs not yet subject to amortization.

No definition available.

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- Definition

For each balance sheet presented, the amount of accumulated amortization for internally developed computer software for long-term internal use.

+ References

No definition available.

+ Details

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Namespace Prefix:	trhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount before accumulated amortization of capitalized costs for internally developed computer software for long-term internal use.

+ References

No definition available.

+ Details

Name:	trhc_CapitalizedSoftwareDevelopmentCostsGross
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The carrying amount of costs for internally developed computer software for long-term internal use net of accumulated amortization as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	trhc_CapitalizedSoftwareDevelopmentCostsNet
Namespace Prefix:	trhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of expense for amortization of capitalized computer software costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration