Stockholders' Deficit Schedule of Stock Options Outstanding (Details) (USD $)	6 Months Ended	12 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Common shares, outstanding	114,445	0	0
Common shares, granted	350,418		119,707
Common shares, exercised	(551)		(683)
Common shares, forfeited	(89,442)		(4,579)
Common shares, outstanding	374,870		114,445
Common shares, exercisable at June 30, 2012	74,984
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted average exercise price, outstanding (per share)	$ 17.61	$ 0.00	$ 0.00
Weighted average exercise price, granted (per share)	$ 6.03		$ 17.09
Weighted average exercise price, exercised (per share)	$ 2.00		$ 2.00
Weighted average exercise price, forfeited (per share)	$ 19.73		$ 6.18
Weighted average exercise price, outstanding (per share)	$ 6.40		$ 17.61
Weighted average exercise price, exercisable at June 30, 2012 (per share)	$ 5.59
Weighted average remaining life, outstanding (in years)	4 years 9 months		4 years 5 months
Weighted average remaining life, exercisable at June 30, 2012 (in years)	4 years 7 months
Proceeds from exercise of stock options (in dollars)	$ 1,099	$ 405
Instrinsic value of options exercised (in dollars)	5,769
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Modified option agreement unvested shares	2,329
Share-based compensation arrangement by share-based payment award, award vesting period (in days)	90 days
Incremental difference in stock-based compensation expense (in dollars)	$ 11,744
Stock Options [Member] \| Extended Share Exercise Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Share-based compensation arrangement by share-based payment award, award vesting period (in days)	180 days

Modified option agreement unversted shares

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Modified Options, Incremental Difference in Stock-based Compensation Expense

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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- Definition

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.

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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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- Definition

The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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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

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

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including 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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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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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

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

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