SHAREHOLDERS' DEFICIT - Preferred Stock Shares (Details) - $ / shares	Sep. 30, 2021	Jan. 11, 2021	Dec. 31, 2020	Sep. 30, 2020	Jul. 31, 2020
Shareholders' Equity (Deficit)
Preferred shares, shares authorized	1,000,000	1,000,000	1,000,000	1,000,000	1,000,000
Preferred stock, par value, (per share)	$ 0.0001	$ 0.0001	$ 0.0001	$ 0.0001	$ 0.0001
Preferred shares, shares issued	0	0	0	0	0
Preferred shares, shares outstanding	0	0	0	0	0

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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- Definition

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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- Definition

Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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