Earnings Per Common Share (Narrative) (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011	Sep. 30, 2012 Warrants - Series A1 And A2 [Member]	Sep. 30, 2011 Warrants - Series A1 And A2 [Member]	Sep. 30, 2012 Warrants - Series A1 [Member]	Jul. 28, 2011 Warrants - Series A1 [Member]	Oct. 15, 2011 Warrants - Series A2 [Member]	Sep. 30, 2012 Series A Preferred Stock [Member]	Sep. 30, 2011 Series A Preferred Stock [Member]	Sep. 30, 2012 Warrants - Other [Member]	Sep. 30, 2011 Warrants - Other [Member]
Earnings Per Share Basic And Diluted By Common Class [Line Items]
Number of shares under stock options	2,000,000	1,800,000	2,000,000	1,800,000
Non-participating restricted stock awards	127,200	1,000	145,400	11,200
Potential common stock shares											1,100,000	1,100,000	700,000
Purchase of common stock	90,728,276		90,728,276		90,709,350	8,600,000	8,600,000
Exercise price per share (in dolars per share)								$ 10	$ 11.50	$ 13