Net Loss Per Share (Details) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Shares for basic and dilutive net loss per share:
Weighted average common shares outstanding	85,553		63,428		85,536		63,307
Denominator for basic and diluted earnings per share	85,553	[1]	63,428	[1]	85,536	[1]	63,307	[1]

[1] (1) There is a lack of comparability in the per share amounts between the periods presented as a result of the issuance of shares of common stock pursuant to a public offering in November 2011. Please see Note 4 of the Notes to Condensed Financial Statements for further discussion.