CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Issuance of shares pursuant to various stock compensation plans and agreements, shares	274,430	353,098
Cancellation of common stock due to forfeitures of issued restricted stock, shares	108,662	122,170
Purchase of treasury stock due to the vesting of restricted stock, shares	63,636	24,834
Repurchase of common stock warrants, shares		1,517,555
Purchase of treasury stock pursuant to the Stock Repurchase Program, shares	6,784,227
Preferred stock, Series A, non-cumulative convertible
Conversion of Series preferred stock (in shares)		31
Converted shares of common stock (in shares)		2,014