WARRANTS (Details) - $ / shares	9 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Class A Common stock
Warrants
Threshold minimum percentage of gross proceeds on total equity proceeds (as a percent)	60.00%
Threshold trading days for calculating Market Value	20 days
Class A Common stock \| Maximum
Warrants
Newly Issued Price (in dollars per share)	$ 9.20
Public Warrants
Warrants
Class of warrant or right outstanding	16,710,785	16,710,785
Warrants exercisable term after the completion of a business combination	30 days
Warrants exercisable term from the closing of the public offering	12 months
Threshold maximum period for filing registration statement after business combination	20 days
Threshold maximum period for registration statement to become effective after business combination	60 days
Minimum threshold written notice period for redemption of public warrants	30 days
Public Warrants \| Redemption of Warrants when price per share of Class A common stock equals or exceeds $18.00
Warrants
Redemption price per warrant (in dollars per share)	$ 0.01
Minimum threshold written notice period for redemption of public warrants	30 days
Stock price trigger for redemption of warrants (in dollars per share)	$ 18.00
Threshold trading days for redemption of warrants	20 days
Threshold consecutive trading days for redemption of warrants	30 days
Threshold number of trading days before sending notice of redemption to warrant holders	3 days
Newly Issued Price (in dollars per share)	$ 18.00
Adjustment of exercise price of warrants based on market value and newly issued price (as a percent)	115.00%
Public Warrants \| Redemption of Warrants when price per share of Class A common stock equals or exceeds $10.00
Warrants
Redemption price per warrant (in dollars per share)	$ 0.10
Minimum threshold written notice period for redemption of public warrants	30 days
Stock price trigger for redemption of warrants (in dollars per share)	$ 10.00
Threshold trading days for redemption of warrants	20 days
Threshold consecutive trading days for redemption of warrants	30 days
Threshold number of trading days before sending notice of redemption to warrant holders	3 days
Adjustment of exercise price of warrants based on market value and newly issued price (as a percent)	180.00%
Private Placement Warrants
Warrants
Class of warrant or right outstanding	9,700,000	9,700,000
Private Placement Warrants \| Redemption of Warrants when price per share of Class A common stock is less than $18.00
Warrants
Stock price trigger for redemption of warrants (in dollars per share)	$ 18.00
Threshold trading days for redemption of warrants	20 days
Threshold consecutive trading days for redemption of warrants	30 days

Percentage of adjustment of exercise price of warrants based on market value and newly issued price.

No definition available.

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Period Type:	duration

- Definition

The minimum threshold period during which a written notice is required for redemption of warrants, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Price of the entity's common stock which would be required to be attained to trigger the redemption of warrants.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Threshold number of specified consecutive trading days for stock price trigger considered for redemption of warrants.

+ References

No definition available.

+ Details

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Namespace Prefix:	twnd_
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- Definition

Threshold number of specified trading days for stock price trigger considered for redemption of warrants.

+ References

No definition available.

+ Details

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- Definition

Threshold number of trading days before sending notice of redemption to warrant holders.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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- Definition

Redemption price per share or per unit of warrants or rights outstanding.

+ References

No definition available.

+ Details

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- Definition

The maximum threshold period for filing registration statement after business combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	twnd_
Data Type:	xbrli:durationItemType
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Period Type:	duration

- Definition

The maximum threshold period for registration statement to become effective after business combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

The aggregate gross proceeds as a threshold minimum percentage of total equity proceeds.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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Period Type:	duration

- Definition

+ References

No definition available.

+ Details

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

- Definition

Threshold trading days for calculating Market Value of shares.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
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- Definition

The warrants exercisable term after the completion of a business combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	twnd_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The warrants exercisable term from the closing of the public offering, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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