Equity awards granted during the period, total, Grants in Period, Gross

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Performance Period

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Percent

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Required Average Closing Stock Price Per Share

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Duration of Trading Period Stock Price Must be Maintained

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options, Performance Multiplier Maximum

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options, Semi-Annual Performance Period Multiplier, Maximum

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Percent Attainment of Performance Goals Required

+ References

No definition available.

+ Details

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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).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

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

+ Details

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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Stock-based Compensation - Equity Awards (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended	3 Months Ended
	Dec. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent attainment of performance goals required	100.00%
2007 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, grants in period		555	49
Total grants in period		2,010	218
2007 Stock Plan [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options, grants in period		5	2
Semi-annual performance period multiplier, maximum		2.75
Performance multiplier maximum		2.5
2007 Stock Plan [Member] \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options, grants in period		1,450	167
$3.45 Average Closing Stock Price [Member] \| 2007 Stock Plan [Member] \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percent		50.00%
Duration of trading period stock price must be maintained		30 days
Required average closing stock price (usd per share)		3.45
Award performance period		3 years
$4.25 Average Closing Stock Price [Member] \| 2007 Stock Plan [Member] \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percent		50.00%
Duration of trading period stock price must be maintained		30 days
Required average closing stock price (usd per share)		4.25
Award performance period		4 years