Share Based Compensation (Details 2) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Options Outstanding Summary [Line Items]
Balance,	690,000
Number Of Options [Member]
Stock Options Outstanding Summary [Line Items]
Balance,	1,246,000	1,357,000	1,459,000
Forfeited	(513,000)	(110,000)	(68,000)
Exercised	(43,000)	(1,000)	(34,000)
Balance,	690,000	1,246,000	1,357,000
Weighted Average Exercise Price [Member]
Stock Options Outstanding Summary [Line Items]
Exercise Price, Lower Range Limit	$ 25.68	$ 16.97	$ 16.97	$ 16.97
Exercise Price, Upper Range Limit	$ 98.87	$ 98.87	$ 98.87	$ 98.87
Exercise Price, Lower Range Limit Forfeited	$ 33.57	$ 25.68	$ 25.08
Exercise Price, Upper Range Limit Forfeited	$ 75.18	$ 75.18	$ 75.18
Exercise Price, Lower Range Limit Exercised	$ 16.97	$ 16.97	$ 16.97
Exercise Price, Upper Range Limit Exercised	$ 25.68	$ 16.97	$ 19.18

Lower exercise price range for options exercised during the period.

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- Definition

Lower exercise price range of forfeited stock options.

+ References

No definition available.

+ Details

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- Definition

Shares of stock options exercised during the period.

+ References

No definition available.

+ Details

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- Definition

Forfeited Stock Option Shares

+ References

No definition available.

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- Definition

Upper exercise price range for options exercised during the period.

+ References

No definition available.

+ Details

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- Definition

Upper exercise price range of forfeited stock options.

+ References

No definition available.

+ Details

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- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ 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 (g)

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

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- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ 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)(1)(i)-(ii)

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

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- Definition

The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

+ Details

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