SHAREHOLDERS' DEFICIT, Preferred Shares and Ordinary Shares (Q1) (Details)	3 Months Ended	12 Months Ended
Mar. 31, 2022 VoteperShare $ / shares shares	Dec. 31, 2021 VoteperShare $ / shares shares	Dec. 31, 2020 $ / shares shares
Stockholders' Deficit [Abstract]
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000	1,000,000
Preferred stock, par value (in dollars per share) \| $ / shares	$ 0.0001	$ 0.0001	$ 0.0001
Preferred stock, shares issued (in shares)	0	0	0
Preferred stock, shares outstanding (in shares)	0	0	0
Stock conversion percentage threshold	20.00%	20.00%
Stock conversion basis at time of business combination	1	1
Class A Ordinary Shares [Member]
Stockholders' Deficit [Abstract]
Ordinary shares, shares authorized (in shares)	200,000,000	200,000,000	200,000,000
Ordinary shares, par value (in dollars per share) \| $ / shares	$ 0.0001	$ 0.0001	$ 0.0001
Voting right per share \| VoteperShare	1	1
Ordinary shares, shares issued (in shares)	27,600,000	27,600,000	27,600,000
Ordinary shares, shares outstanding (in shares)	27,600,000	27,600,000	27,600,000
Ordinary shares, shares issued (in shares)	0	0
Ordinary shares, shares outstanding (in shares)	0	0
Class B Ordinary Shares [Member]
Stockholders' Deficit [Abstract]
Ordinary shares, shares authorized (in shares)	20,000,000	20,000,000	20,000,000
Ordinary shares, par value (in dollars per share) \| $ / shares	$ 0.0001	$ 0.0001	$ 0.0001
Voting right per share \| VoteperShare	1	1
Ordinary shares, shares issued (in shares)	6,900,000	6,900,000	6,900,000
Ordinary shares, shares outstanding (in shares)	6,900,000	6,900,000	6,900,000

Number of votes each holder is entitled to vote per share.

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- Definition

The stock conversion percentage threshold equal to the sum of the total number of all shares of common stock outstanding upon the completion of the Initial Public Offering plus all shares of Class A common stock and equity-linked securities issued or deemed issued in connection with the initial Business Combination (excluding any shares or equity-linked securities issued, or to be issued, to any seller in the initial Business Combination and any private placement-equivalent warrants issued to the Sponsor or its affiliates upon conversion of loans made to the Company).

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- Definition

Ratio applied to the conversion of stock, for example but not limited to, one share converted to two or two shares converted to one.

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- Definition

Face amount or stated value per share of common stock.

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
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Reference 2: 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(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

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

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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

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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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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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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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- Definition

The number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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