Achievement of Specified Share Price Thresholds.

No definition available.

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Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of anniversaries the the awards are granted on.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Securities That Met Specified Share Price Thresholds

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Number of installments in 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.

+ References

No definition available.

+ Details

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Data Type:	xbrli:decimalItemType
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- Definition

The number of incremental equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

No definition available.

+ Details

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Namespace Prefix:	th_
Data Type:	xbrli:sharesItemType
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- Definition

The weighted average fair value as of grant date pertaining to incremental equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

No definition available.

+ Details

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Namespace Prefix:	th_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The correlation coefficient assumption that is used in valuing an option on its own shares.

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of target level based on which vesting of incremental award is determined under share-based payment arrangement.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Number of award's shares considered as liability-based awards upon approval of plan amendment.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The period to achieve cumulative operating cash flow amounts.

+ References

No definition available.

+ Details

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Namespace Prefix:	th_
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- Definition

The right to buy number of common stock upon vesting.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Face amount per share of no-par value common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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- Definition

Face amount or stated value per share of common stock.

+ References

+ Details

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Period Type:	instant

- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Period Type:	duration

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

+ Details

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

+ References

+ Details

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

+ Details

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- References

No definition available.

+ Details

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

+ Details

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

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- Definition

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-Publisher FASB
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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

+ Details

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

+ Details

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

+ Details

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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

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- Definition

Number of additional shares authorized for issuance under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

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- 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

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Gross number of share options (or share units) granted during the period.

+ References

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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- Definition

Percentage of vesting of award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- 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://www.xbrl.org/2003/role/exampleRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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Stock-Based Compensation (Details)													12 Months Ended
Stock-Based Compensation (Details)	May 22, 2025 $ / shares shares	Feb. 27, 2025 $ / shares shares	Feb. 29, 2024 $ / shares shares	Mar. 01, 2023 $ / shares shares	Jul. 12, 2022 $ / shares shares	May 24, 2022 $ / shares shares	May 22, 2022 shares	May 19, 2022 shares	Feb. 24, 2022 shares	Feb. 25, 2021 shares	May 21, 2019 installment item $ / shares shares	Mar. 15, 2019 shares	Dec. 31, 2025 $ / shares shares	Dec. 31, 2024 $ / shares shares	Dec. 31, 2023 $ / shares shares	Dec. 31, 2021 shares	Dec. 12, 2024 $ / shares
Stock-Based Compensation
Shares authorized (in shares)												4,000,000	13,000,000
Number of additional shares authorized							5,000,000	4,000,000
Number of anniversaries the awards vest \| item											4
Common stock, par value (in dollars per share) \| $ / shares													$ 0.0001	$ 0.0001			$ 0.0001
Exercisable													345,227
RSUs
Stock-Based Compensation
Right to buy number of shares upon vesting											1
Other than options
Outstanding Options at beginning of period (in shares)													985,077	1,682,206	2,658,581
Granted (in shares)													731,442	430,661	287,849
Forfeited (in shares)													(1,170)	(125,792)	(101,495)
Vested (in shares)													(424,715)	(1,001,998)	(1,162,729)
Outstanding Options at end of period (in shares)													1,290,634	985,077	1,682,206
Weighted Average Grant Date Fair Value per Share
Outstanding Options at beginning of period (in shares) \| $ / shares													$ 7.6	$ 4.65	$ 2.98
Granted (in dollars per share) \| $ / shares													5.89	9.85	15.14
Forfeited (in dollars per share) \| $ / shares													10.93	5.66	4.91
Vested (in dollars per share) \| $ / shares													7.07	3.86	3.4
Outstanding Options at end of period (in dollars per share) \| $ / shares													$ 6.8	$ 7.6	$ 4.65
RSUs \| Executive Officers and Other Employees
Stock-Based Compensation
Granted (in shares)										1,134,524
PSUs
Stock-Based Compensation
Vesting (in percentage)												150.00%	150.00%
Share awards are available for future grant													2,645,618	953,569
Other than options
Outstanding Options at beginning of period (in shares)													1,401,407	1,358,868	1,495,017
Granted (in shares)									245,017				2,992,858	203,057	91,025
Incremental PSUs vested in period (in shares)													87,207
Forfeited (in shares)													(425,000)	(160,518)	(227,174)
Vested (in shares)													(786,626)
Outstanding Options at end of period (in shares)													3,269,846	1,401,407	1,358,868
Weighted Average Grant Date Fair Value per Share
Outstanding Options at beginning of period (in shares) \| $ / shares													$ 6.02	$ 5.23	$ 4.72
Granted (in dollars per share) \| $ / shares													1.65	11.59	17.82
Incremental PSUs vested in period (in dollars per share) \| $ / shares													2.98
Forfeited (in dollars per share) \| $ / shares													4.17	6.36	6.9
Vested (in dollars per share) \| $ / shares													4.13
Outstanding Options at end of period (in dollars per share) \| $ / shares													$ 2.64	$ 6.02	$ 5.23
Percentage of target level													150.00%
PSUs \| 2022 PSU Agreement
Stock-Based Compensation
Period to achieve cumulative operating cash flow amounts (in years)									3 years
PSUs \| Award Date February 24, 2022 [Member]
Other than options
Outstanding Options at beginning of period (in shares)													174,419
Outstanding Options at end of period (in shares)														174,419
Stock Appreciation Rights (SARs)
Other than options
Granted (in shares)																1,578,537
Outstanding Options at end of period (in shares)													0
Employee Stock Option
Stock-Based Compensation
Right to buy number of shares upon vesting											1
Expiration Period (in years)											10 years
Par value \| $ / shares											$ 0.0001
Expected term (years)													6 years 3 months
Expected dividend rate													0.00%
Liability Based Restricted Stock Units
Other than options
Outstanding Options at end of period (in shares)													0
Share-Based Payment Arrangement, Nonemployee [Member] \| RSUs
Stock-Based Compensation
Vesting period (in years)											1 year	1 year
Employees \| RSUs
Stock-Based Compensation
Number of equal installments \| installment											4
Number of anniversaries the awards vest \| item											4
Employees \| RSUs \| Share-Based Payment Arrangement, Tranche One [Member]
Stock-Based Compensation
Vesting (in percentage)											50.00%
Employees \| RSUs \| Share-Based Payment Arrangement, Tranche Two [Member]
Stock-Based Compensation
Vesting (in percentage)											50.00%
Employees \| PSUs \| Employees
Stock-Based Compensation
Vesting (in percentage)													0.00%
Expected volatility				45.86%
Expected term (years)				2 years 10 months 2 days
Correlation Coefficient				0.621
Expected dividend rate				0.00%
Expected risk-free interest				4.60%
Exercise price \| $ / shares				$ 20.66
Other than options
Granted (in shares)				91,025
Outstanding Options at end of period (in shares)													73,931
Employees \| PSUs \| Executive officers and employees
Stock-Based Compensation
Expected volatility		37.97%	36.30%
Expected term (years)		2 years 10 months 2 days	2 years 10 months 2 days
Correlation Coefficient		0.5426	0.5832
Expected dividend rate		0.00%	0.00%
Expected risk-free interest		4.01%	4.41%
Exercise price \| $ / shares		$ 7.93	$ 13.5
TSR Criteria satisfied Shares													68,948
Other than options
Granted (in shares)		392,858	203,057
Outstanding Options at end of period (in shares)													203,057
Employees \| PSUs \| President and Chief Executive Officer
Stock-Based Compensation
Right to buy number of shares upon vesting		1				1
Shares authorized (in shares)		2,000,000
Expected volatility	38.83%	38.39%				53.82%
Expected term (years)	3 years 1 month 9 days	3 years 4 months 2 days				3 years 1 month 6 days
Expected dividend rate	0.00%	0.00%				0.00%
Expected risk-free interest	3.96%	4.02%				2.65%
Exercise price \| $ / shares	$ 0.72	$ 0.34				$ 2.21
Number of award's shares considered as liability-based awards	2,494,120
Other than options
Vested (in shares)													(250,000)
Weighted Average Grant Date Fair Value per Share
Outstanding Options at end of period (in dollars per share) \| $ / shares						$ 12.5
Employees \| PSUs \| Chief Accounting Officer and Chief Financial Officer
Stock-Based Compensation
Shares authorized (in shares)		600,000
Employees \| PSUs \| Executive Officer
Stock-Based Compensation
Right to buy number of shares upon vesting					1
Common stock, par value (in dollars per share) \| $ / shares					$ 0.0001
Expected volatility					55.76%
Expected term (years)					2 years 11 months 19 days
Expected dividend rate					0.00%
Expected risk-free interest					3.05%
Exercise price \| $ / shares					$ 6.96
Other than options
Granted (in shares)					750,000
Weighted Average Grant Date Fair Value per Share
Granted (in dollars per share) \| $ / shares					$ 12.5
Employees \| PSUs \| Executive Officer \| Share-Based Payment Arrangement, Tranche One [Member]
Other than options
Vested (in shares)													(275,000)
Employees \| Employee Stock Option
Stock-Based Compensation
Number of equal installments \| installment											4
Minimum \| PSUs
Stock-Based Compensation
Vesting (in percentage)												0.00%
Minimum \| PSUs \| 2022 PSU Agreement
Stock-Based Compensation
Vesting (in percentage)									0.00%
Minimum \| Stock Appreciation Rights (SARs)
Stock-Based Compensation
Vesting period (in years)												3 years
Minimum \| Employee Stock Option
Stock-Based Compensation
Share Price \| $ / shares											$ 4.51
Expected volatility													25.94%
Exercise price \| $ / shares													$ 4.51
Minimum \| Share-Based Payment Arrangement, Nonemployee [Member] \| RSUs
Stock-Based Compensation
Vesting period (in years)												3 years
Minimum \| Employees \| PSUs \| President and Chief Executive Officer
Stock-Based Compensation
Achievement of Specified Share Price Thresholds \| $ / shares		$ 20
Maximum \| PSUs
Stock-Based Compensation
Vesting (in percentage)												200.00%
Maximum \| PSUs \| 2022 PSU Agreement
Stock-Based Compensation
Vesting (in percentage)									150.00%
Maximum \| Stock Appreciation Rights (SARs)
Stock-Based Compensation
Vesting period (in years)												4 years
Maximum \| Employee Stock Option
Stock-Based Compensation
Share Price \| $ / shares											$ 10.83
Expected volatility													30.90%
Exercise price \| $ / shares													$ 10.83
Maximum \| Share-Based Payment Arrangement, Nonemployee [Member] \| RSUs
Stock-Based Compensation
Vesting period (in years)												4 years
Maximum \| Employees \| PSUs \| President and Chief Executive Officer
Stock-Based Compensation
Achievement of Specified Share Price Thresholds \| $ / shares		$ 30
Other than options
Granted (in shares)						500,000