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Other Non-Current Assets - Other non-current assets (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Other Non-Current Assets
Cloud computing implementation costs	$ 7,198	$ 7,198
Less: accumulated amortization	(5,033)	(3,844)
Other non-current assets	$ 2,165	$ 3,354

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- Definition

Other Assets Noncurrent, Accumulated Amortization

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No definition available.

+ Details

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Namespace Prefix:	th_
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- Definition

Other Assets Noncurrent, Gross

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No definition available.

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- Definition

Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.

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No definition available.

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

No definition available.

+ Details

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Balance Type:	na
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