CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net income	$ 21,579	$ 241,923	$ 25,981
Other comprehensive income (loss):
Unrealized gains (losses) on available-for-sale investment securities, net of tax	6,451	(23,486)	17,420
Reclassification adjustment for available-for-sale investment securities gains included in net income, net of tax	(992)	(246)	(758)
Amortization of net unrealized gain associated with reclassification of available-for-sale investment securities to held-to-maturity investment securities, net of tax	(1,559)	(1,303)	(913)
Reclassification adjustment for deferred tax asset valuation allowance on investment securities	0	(15,033)	15,014
Net (loss) gain and amortization of net loss related to pension liability, net of tax	(1,291)	895	(911)
Reclassification adjustment for deferred tax asset valuation allowance on pension liability	0	1,416	(659)
Other comprehensive income (loss)	2,609	(37,757)	29,193
Comprehensive income	24,188	204,166	55,174
Comprehensive (loss) income attributable to noncontrolling interest in subsidiary	(76)	179	(297)
Comprehensive income attributable to First Banks, Inc.	$ 24,264	$ 203,987	$ 55,471