BUSINESS SEGMENT RESULTS (Tables)

6 Months Ended

Jun. 30, 2012

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The business segment results are consistent with the Company’s internal reporting system and, in all material respects, with GAAP and practices predominant in the banking industry. The business segment results are summarized as follows:

				Corporate, Other and
				Intercompany
	First Bank			Reclassifications				ConsolidatedTotals
	June 30,		December 31,	June 30,		December 31,		June 30,	December 31,
	2012		2011	2012		2011		2012	2011
	(dollars expressed in thousands)
Balance sheet information:
Investment securities	$	2,841,624	2,470,704	—		—		2,841,624	2,470,704
Loans, net of net deferred loan fees		3,031,445	3,283,951	—		—		3,031,445	3,283,951
FRB and FHLB stock		26,115	27,078	—		—		26,115	27,078
Goodwill and other intangible assets		121,967	121,967	—		—		121,967	121,967
Assets of discontinued operations		20,501	21,009	—		—		20,501	21,009
Total assets		6,552,622	6,593,515	13,542		15,398		6,566,164	6,608,913
Deposits		5,394,874	5,454,664	(3,611	)	(2,834	)	5,391,263	5,451,830
Other borrowings		37,814	50,910	—		—		37,814	50,910
Subordinated debentures		—	—	354,095		354,057		354,095	354,057
Liabilities of discontinued operations		339,924	346,282	—		—		339,924	346,282
Stockholders’ equity		720,710	680,625	(434,577	)	(416,954	)	286,133	263,671

						Corporate, Other and
						Intercompany
	First Bank					Reclassifications				Consolidated Totals
	Three Months Ended					Three Months Ended				Three Months Ended
	June 30,					June 30,				June 30,
	2012			2011		2012		2011		2012		2011
	(dollars expressed in thousands)
Income statement information:
Interest income	$	51,608		58,990		—		3		51,608		58,993
Interest expense		3,804		7,943		3,681		3,364		7,485		11,307
Net interest income (loss)		47,804		51,047		(3,681	)	(3,361	)	44,123		47,686
Provision for loan losses		—		23,000		—		—		—		23,000
Net interest income (loss) after provision for
loan losses		47,804		28,047		(3,681	)	(3,361	)	44,123		24,686
Noninterest income		15,579		15,033		109		(65	)	15,688		14,968
Amortization of intangible assets		—		783		—		—		—		783
Other noninterest expense		49,733		54,485		368		(416	)	50,101		54,069
Income (loss) from continuing operations before
(benefit) provision for income taxes		13,650		(12,188	)	(3,940	)	(3,010	)	9,710		(15,198	)
(Benefit) provision for income taxes		(351	)	17		472		55		121		72
Net income (loss) from continuing operations, net
of tax		14,001		(12,205	)	(4,412	)	(3,065	)	9,589		(15,270	)
Loss from discontinued operations, net of tax		(2,466	)	(2,706	)	—		—		(2,466	)	(2,706	)
Net income (loss)		11,535		(14,911	)	(4,412	)	(3,065	)	7,123		(17,976	)
Net loss attributable to noncontrolling interest in
subsidiary		(385	)	(927	)	—		—		(385	)	(927	)
Net income (loss) attributable to First Banks, Inc.	$	11,920		(13,984	)	(4,412	)	(3,065	)	7,508		(17,049	)

						Corporate, Other and
						Intercompany
	First Bank					Reclassifications				Consolidated Totals
	Six Months Ended					Six Months Ended				Six Months Ended
	June 30,					June 30,				June 30,
	2012			2011		2012		2011		2012		2011
	(dollars expressed in thousands)
Income statement information:
Interest income	$	103,924		121,104		21		54		103,945		121,158
Interest expense		8,138		17,151		7,364		6,663		15,502		23,814
Net interest income (loss)		95,786		103,953		(7,343	)	(6,609	)	88,443		97,344
Provision for loan losses		2,000		33,000		—		—		2,000		33,000
Net interest income (loss) after provision for
loan losses		93,786		70,953		(7,343	)	(6,609	)	86,443		64,344
Noninterest income		32,398		28,896		181		(19	)	32,579		28,877
Amortization of intangible assets		—		1,566		—		—		—		1,566
Other noninterest expense		99,132		110,101		709		(422	)	99,841		109,679
Income (loss) from continuing operations before
(benefit) provision for income taxes		27,052		(11,818	)	(7,871	)	(6,206	)	19,181		(18,024	)
(Benefit) provision for income taxes		(219	)	160		435		(36	)	216		124
Net income (loss) from continuing operations, net
of tax		27,271		(11,978	)	(8,306	)	(6,170	)	18,965		(18,148	)
Loss from discontinued operations, net of tax		(5,004	)	(5,911	)	—		—		(5,004	)	(5,911	)
Net income (loss)		22,267		(17,889	)	(8,306	)	(6,170	)	13,961		(24,059	)
Net loss attributable to noncontrolling interest in
subsidiary		(445	)	(862	)	—		—		(445	)	(862	)
Net income (loss) attributable to First Banks, Inc.	$	22,712		(17,027	)	(8,306	)	(6,170	)	14,406		(23,197	)