Subsequent Events (Details)	12 Months Ended
	Dec. 31, 2012
Subsequent Event [Line Items]
Number of shares of common stock issued (in shares)	3,925,000
Restricted stock sub-limit (in shares)	1,500,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Number of shares of common stock issued (in shares)	1,600,000