FDIC LOSS SHARING ASSET (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Changes in the FDIC loss sharing asset
Balance, at the beginning of the period	$ 57,475
Addition from the FCAL acquisition	17,180
FDIC share of additional losses, net of recoveries	6,440
Cash received from FDIC	(6,724)
Net amortization	(18,718)
Balance, at the end of the period	55,653
FDIC loss sharing asset
FDIC loss sharing asset	55,653
True-up liability	6,581
Non-single family covered assets	461,280
Single family covered assets	132,730
Affinity
Changes in the FDIC loss sharing asset
Balance, at the end of the period	12,973
FDIC loss sharing asset
FDIC loss sharing asset	12,973
Non-single family covered assets	230,053
Single family covered assets	14,285
Los Padres Bank
Changes in the FDIC loss sharing asset
Balance, at the end of the period	27,717
FDIC loss sharing asset
FDIC loss sharing asset	27,717
Non-single family covered assets	157,504
Single family covered assets	77,126
Western Commercial Bank
Changes in the FDIC loss sharing asset
Balance, at the end of the period	2,153
FDIC loss sharing asset
FDIC loss sharing asset	2,153
True-up liability	1,510
Non-single family covered assets	21,844
San Luis Trust Bank
Changes in the FDIC loss sharing asset
Balance, at the end of the period	12,810
FDIC loss sharing asset
FDIC loss sharing asset	12,810
True-up liability	5,071
Non-single family covered assets	51,879
Single family covered assets	$ 41,319