Interest rate of Non-Cumulative Perpetual Preferred Stock, Series A

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- Definition

Non-cumulative Perpetual Preferred Stock, Series A, Shares Authorized

+ References

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- Definition

Non-cumulative Perpetual Preferred Stock, Shares Outstanding

+ References

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(4))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 4

-Article 4

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 2

-Article 4

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-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=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29

-Article 5

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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Shareholders Equity Details Narrative (Details) (USD $) In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Jun. 30, 2014 Citizens Republic Bancorp	Feb. 04, 2013 Citizens Republic Bancorp	Jun. 30, 2013 Citizens Republic Bancorp FirstMerit	Apr. 12, 2013 Citizens Republic Bancorp FirstMerit	Jun. 30, 2014 Citizens Republic Bancorp	Dec. 31, 2013 Citizens Republic Bancorp	Apr. 12, 2013 Citizens Republic Bancorp
Shareholders Equity Narrative [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 1.0		$ 1.5
Class of Warrant or Right, Number of Securities Called by Warrants or Rights						2,408,203.0	2,408,203.0	2,515,892.0		1,757,812.5
Class of Warrant or Right, Exercise Price of Warrants or Rights									17.89
5.875% Non-Cumulative Perpetual Preferred stock, Series A, authorized 115,000 shares	7,000,000
Non-cumulative Perpetual Preferred Stock, Series A, Shares Authorized	115,000	115,000	0
Interest rate of Non-Cumulative Perpetual Preferred Stock, Series A				5.875%	5.875%
Non-cumulative Perpetual Preferred Stock, Shares Outstanding	100,000