REGULATORY REQUIREMENTS AND MATTERS (Tables)

12 Months Ended

Dec. 31, 2015

Banking and Thrift [Abstract]

Schedule of actual and required capital amounts and ratios

The following tables present the regulatory capital information of the Company and the Bank as of December 31, 2015 and 2014:

	December 31, 2015								December 31, 2014
($ in thousands)	Basel III								Basel I
	Actual				Minimum Requirement		Well Capitalized Requirement		Actual				Minimum Requirement		Well Capitalized Requirement
	Amount		Ratio		Ratio		Ratio		Amount		Ratio		Ratio		Ratio
Total capital (to risk-weighted assets)
Company	$	3,082,945	12.2	%	8.0	%	10.0	%	$	2,753,599	12.6	%	8.0	%	10.0	%
East West Bank	$	3,039,524	12.1	%	8.0	%	10.0	%	$	2,590,173	11.8	%	8.0	%	10.0	%
Tier I capital (to risk-weighted assets)
Company	$	2,686,627	10.7	%	6.0	%	8.0	%	$	2,405,452	11.0	%	4.0	%	6.0	%
East West Bank	$	2,754,201	11.0	%	6.0	%	8.0	%	$	2,316,615	10.6	%	4.0	%	6.0	%
CET1 capital (1) (to risk-weighted assets)
Company	$	2,650,413	10.5	%	4.5	%	6.5	%	N/A		N/A		N/A		N/A
East West Bank	$	2,754,201	11.0	%	4.5	%	6.5	%	N/A		N/A		N/A		N/A
Tier I leverage capital (to adjusted average assets)
Company	$	2,686,627	8.5	%	4.0	%	5.0	%	$	2,405,452	8.4	%	4.0	%	5.0	%
East West Bank	$	2,754,201	8.8	%	4.0	%	5.0	%	$	2,316,615	8.2	%	4.0	%	5.0	%
Risk weighted assets
Company	$	25,232,575	N/A		N/A		N/A		$	21,931,486	N/A		N/A		N/A
East West Bank	$	25,129,885	N/A		N/A		N/A		$	21,875,078	N/A		N/A		N/A
Adjusted quarterly average total assets (2)
Company	$	31,458,517	N/A		N/A		N/A		$	28,501,115	N/A		N/A		N/A
East West Bank	$	31,385,333	N/A		N/A		N/A		$	28,418,340	N/A		N/A		N/A

(1) CET1 capital measurement was introduced under the Basel III Capital Rules implemented during 2015.

(2) Reflects adjusted average total assets for the three months ended December 31, 2015 and 2014.

N/A = not applicable