Condensed Consolidated Statements of Changes In Stockholders' Equity (Parenthetical) In Thousands, unless otherwise specified	Sep. 30, 2011		Dec. 31, 2010		Dec. 31, 2009
Common Stock [Member]
Balance, shares	72,739	[1]	70,753	[1]	69,412
Treasury Stock [Member]
Balance, shares	246	[1]	246	[1]	246

[1] Restated