Stock Compensation Plans (Combined Activity) (Details) (Equity Incentive Plan, Stock Options, Common Stock, USD $)	3 Months Ended
Mar. 31, 2015
Equity Incentive Plan \| Stock Options \| Common Stock
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period (shares)	11,116,000
Granted (shares)	1,349,000
Exercised (shares)	(76,000)
Forfeitures and cancelled (shares)	(559,000)
Outstanding at end of period (shares)	11,830,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of period (usd per share)	$ 4.96
Granted (usd per share)	$ 3.49
Exercised (usd per share)	$ 2.81
Forfeited and cancelled (usd per share)	$ 4.14
Outstanding at end of period (usd per share)	$ 4.85
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number	7,821,000
Options vested and exercisable at end of period, Weighted Average Exercise Price	$ 5.57

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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-Section 50

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For presentations that combine terminations, 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 or that expired.

+ References

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-Publisher FASB

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Weighted average price of options that were either forfeited or expired.

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-Publisher FASB

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

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No definition available.

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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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No definition available.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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