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Share Based Compensation (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
3 Months Ended | 3 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2013
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Jan. 31, 2013
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Dec. 31, 2012
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Mar. 31, 2013
Common Stock [Member]
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Dec. 31, 2012
Common Stock [Member]
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Mar. 31, 2013
SEACOR Common Stock [Member]
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Mar. 31, 2013
Era Group Common Stock [Member]
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Mar. 31, 2013
Restricted Stock [Member]
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Mar. 31, 2013
Era Group Inc. 2012 Incentive Plan [Member]
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Mar. 31, 2013
Era Group Inc. 2012 Incentive Plan [Member]
Common Stock [Member]
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Jan. 14, 2013
Era Group Inc. 2012 Incentive Plan [Member]
Common Stock [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||||
| Maximum number of shares authorized | 4,000,000 | ||||||||||
| Common stock, par value | $ 0.01 | $ 0.01 | $ 10 | $ 0.01 | $ 0.01 | $ 0.01 | |||||
| Shares remaining available for grant | 3,412,232 | ||||||||||
| Stock-based compensation expense | $ 0.3 | ||||||||||
| Restricted stock awarded | 233,710 | ||||||||||
| Restricted stock awarded average grant date fair value | $ 20.48 | ||||||||||
| Stock options granted | 185,000 | ||||||||||
| Converted stock options | 169,058 | 37,900 | 169,058 | ||||||||
| X | ||||||||||
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- Definition
Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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