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Series A Preferred Stock (Details) (Series A Preferred Stock [Member], USD $)
In Millions, except Share data, unless otherwise specified |
0 Months Ended | |||
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Dec. 23, 2011
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Jan. 31, 2013
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Dec. 23, 2011
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Jul. 31, 2011
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Series A Preferred Stock [Member]
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| Class of Stock [Line Items] | ||||
| Preferred stock, shares authorized (in shares) |
10,000,000us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Preferred stock, par value |
$ 100us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
$ 100us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
$ 0.01us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Preferred stock, shares issued (in shares) |
1,400,000us-gaap_PreferredStockSharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
1,400,000us-gaap_PreferredStockSharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Exchange of advances from SEACOR for Series A Preferred Stock |
$ 140.0era_ExchangeofAdvancesfromAffiliateforPreferredStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
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| Shares exchanged (in shares) |
1,400,000era_PreferredStockSharesExchanged / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |
| X | ||||||||||
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- Definition
Exchange of Advances from Affiliate for Preferred Stock No definition available.
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- Definition
Preferred Stock, Shares Exchanged No definition available.
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- Details
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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