Mirion Technologies, Inc. General form of registration statement for all companies including face-amount certificate companies

Stockholders' Equity - Additional Information (Detail)

v3.21.2

Stockholders' Equity - Additional Information (Detail) - shares	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020	Aug. 13, 2020	Jun. 30, 2020	Dec. 31, 2019
GS Acquisition Holdings Corp II [Member]
Equity [Line Items]
Preferred stock, shares authorized	5,000,000	5,000,000			5,000,000
Preferred stock, shares issued	0	0			0
Preferred stock, shares outstanding	0	0			0
Common Class A [Member]
Equity [Line Items]
Common stock, shares authorized	3,000,000			3,000,000
Common stock, shares issued	1,483,795			1,483,795
Common stock, shares outstanding	1,483,795			1,483,795
Common Class A [Member] \| GS Acquisition Holdings Corp II [Member]
Equity [Line Items]
Common stock, shares authorized	500,000,000	500,000,000			500,000,000
Common stock, shares issued		75,000,000
Shares subject to possible redemption, classified outside of permanent equity	75,000,000	75,000,000
Warrants Issued	18,750,000	18,750,000
Common Class A [Member] \| Shares Subject To Possible Redemption [Member] \| GS Acquisition Holdings Corp II [Member]
Equity [Line Items]
Common stock, shares issued	75,000,000
Common stock, shares outstanding	75,000,000	75,000,000
Common Class B [Member]
Equity [Line Items]
Common stock, shares authorized	7,000,000			7,000,000
Common stock, shares issued	5,353,970			5,353,970
Common stock, shares outstanding	5,353,970			5,353,970
Common Class B [Member] \| GS Acquisition Holdings Corp II [Member]
Equity [Line Items]
Common stock, shares authorized	50,000,000	50,000,000			50,000,000
Common stock, shares issued	18,750,000	18,750,000			20,125,000
Common stock, shares outstanding	18,750,000	18,750,000	18,750,000		20,125,000
Common Class B [Member] \| Shares Subject To Possible Redemption [Member] \| GS Acquisition Holdings Corp II [Member]
Equity [Line Items]
Common stock, shares issued	18,750,000
Common stock, shares outstanding		18,750,000

- Definition

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+ References

No definition available.

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- Definition

Warrants issued.

+ References

No definition available.

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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.

+ References

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- Definition

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

+ References

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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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
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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.

+ References

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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.

+ References

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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- 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.

+ References

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- Definition

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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