NON-COVERED LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 13) (Non-covered loans, USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Recorded investment in total loans receivable related to each balance in the allowance for loan losses
Individually evaluated for impairment	$ 168,964	$ 183,477
Collectively evaluated for impairment	18,049,911	15,494,840
Acquired with deteriorated credit quality	58,893
Ending balance	18,277,768	15,678,317
Residential
Recorded investment in total loans receivable related to each balance in the allowance for loan losses
Individually evaluated for impairment	51,250	56,287
Collectively evaluated for impairment	4,397,218	4,129,022
Acquired with deteriorated credit quality	1,259
Ending balance	4,449,727	4,185,309
Commercial Real Estate ("CRE")
Recorded investment in total loans receivable related to each balance in the allowance for loan losses
Individually evaluated for impairment	76,743	84,436
Collectively evaluated for impairment	5,665,843	4,500,641
Acquired with deteriorated credit quality	55,717
Ending balance	5,798,303	4,585,077
Commercial and Industrial ("C&I")
Recorded investment in total loans receivable related to each balance in the allowance for loan losses
Individually evaluated for impairment	40,208	39,527
Collectively evaluated for impairment	6,631,178	5,320,666
Acquired with deteriorated credit quality	1,917
Ending balance	6,673,303	5,360,193
Consumer
Recorded investment in total loans receivable related to each balance in the allowance for loan losses
Individually evaluated for impairment	763	3,227
Collectively evaluated for impairment	1,355,672	1,544,511
Ending balance	$ 1,356,435	$ 1,547,738