Percent of payout for performance based restricted stock unit grants

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Required stock price for payout on performance based restricted stock units

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Amount of decrease in additional paid in capital (APIC) resulting from a tax deficiency associated with a share-based compensation plan other than an employee stock ownership plan (ESOP).

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- Definition

Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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-Name Accounting Standards Codification

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Fair value of obligations measured on a recurring basis.

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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- References

No definition available.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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).

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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).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Share-Based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Share-Based Compensation (Details Textual)
Tax shortfall in earnings related to share-based compensation		$ 200	$ 200	$ 1,400	$ 1,900
Stock-based compensation expenses				2,153	3,683
Share-based compensation (capitalized)		$ 400	900	$ 700	2,000
Employee Stock Option [Member]
Share-Based Compensation (Details Textual)
Options canceled, shares				(1,800)
Options outstanding, end of period, shares	1,330,390	1,330,390		1,330,390
Remaining contract life of outstanding stock options	4 years 3 months
Remaining contract life of exercisable stock options	4 years 3 months
Restricted Stock Awards [Member]
Restricted stock activity
Restricted shares outstanding, beginning of period, shares				1,414,012
Restricted shares outstanding, beginning of period, weighted average price				$ 14.81
Restricted shares granted, shares				609,238
Restricted shares granted, weighted average price				$ 2.64
Restricted shares canceled, shares				(189,723)
Restricted shares canceled, weighted average price				$ 14.42
Restricted shares vested, shares				(237,484)
Restricted shares vested, weighted average price				$ 21.77
Restricted shares outstanding, end of period, shares	1,596,043	1,596,043		1,596,043
Restricted shares outstanding, end of period, weighted average price	$ 9.17	$ 9.17		$ 9.17
Share-Based Compensation (Details Textual)
Grant date fair value of shares vested				$ 5,200
Unrecognized compensation cost for stock grants	$ 6,400	$ 6,400		$ 6,400
Weighted average remaining recognition period of cost for stock grants				1 year 8 months
Restricted Stock Units (RSUs) [Member]
Restricted stock activity
Restricted shares outstanding, beginning of period, shares				374,950
Restricted shares outstanding, beginning of period, weighted average price				$ 13.36
Restricted shares granted, shares				216,450
Restricted shares granted, weighted average price				$ 1.98
Restricted shares canceled, shares				0
Restricted shares canceled, weighted average price				$ 0.00
Restricted shares vested, shares				0
Restricted shares vested, weighted average price				$ 0.00
Restricted shares outstanding, end of period, shares	591,400	591,400		591,400
Restricted shares outstanding, end of period, weighted average price	$ 9.20	$ 9.20		$ 9.20
Share-Based Compensation (Details Textual)
Required stock price for payout on performance based restricted stock units				$ 5.22
Percent of payout for performance based restricted stock unit grants				100.00%
Restricted Stock Awards Vesting Term				3 years
Unrecognized compensation cost for stock grants	$ 1,400	$ 1,400		$ 1,400
Weighted average remaining recognition period of cost for stock grants				1 year 10 months
Cash-settled Restricted Stock Unit (RSUs) [Member]
Restricted stock activity
Restricted shares granted, shares				147,812
Share-Based Compensation (Details Textual)
Restricted Stock Awards Vesting Term				1 year
Cash-Settled Restricted Stock Unit Liability	$ 100	100		$ 100
Minimum [Member]
Share-Based Compensation (Details Textual)
Percent of payout for performance based restricted stock unit grants				0.00%
Minimum [Member] \| Restricted Stock Awards [Member]
Share-Based Compensation (Details Textual)
Restricted Stock Awards Vesting Term				1 year
Maximum Payout [Member]
Share-Based Compensation (Details Textual)
Percent of payout for performance based restricted stock unit grants				200.00%
Maximum Payout [Member] \| Restricted Stock Awards [Member]
Share-Based Compensation (Details Textual)
Restricted Stock Awards Vesting Term				3 years
General and Administrative Expense [Member]
Share-Based Compensation (Details Textual)
Stock-based compensation expenses		1,200	1,700	$ 2,000	3,300
Lease Operating Cost [Member]
Share-Based Compensation (Details Textual)
Stock-based compensation expenses		$ 100	$ 100	$ 100	$ 100