REGULATORY REQUIREMENTS AND MATTERS (Tables)

12 Months Ended

Dec. 31, 2016

Banking and Thrift [Abstract]

Schedule of regulatory capital information

The following tables present the regulatory capital information of the Company and the Bank as of December 31, 2016 and 2015:

	Basel III
	December 31, 2016								December 31, 2015
($ in thousands)	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	$	3,400,642	12.4	%	8.0	%	10.0	%	$	3,082,945	12.2	%	8.0	%	10.0	%
East West Bank	$	3,371,885	12.3	%	8.0	%	10.0	%	$	3,039,524	12.1	%	8.0	%	10.0	%
Tier I capital (to risk-weighted assets)
Company	$	2,976,002	10.9	%	6.0	%	8.0	%	$	2,686,627	10.7	%	6.0	%	8.0	%
East West Bank	$	3,095,245	11.3	%	6.0	%	8.0	%	$	2,754,201	11.0	%	6.0	%	8.0	%
CET1 capital(to risk-weighted assets)
Company	$	2,976,002	10.9	%	4.5	%	6.5	%	$	2,650,413	10.5	%	4.5	%	6.5	%
East West Bank	$	3,095,245	11.3	%	4.5	%	6.5	%	$	2,754,201	11.0	%	4.5	%	6.5	%
Tier I leverage capital (to adjusted average assets)
Company	$	2,976,002	8.7	%	4.0	%	5.0	%	$	2,686,627	8.5	%	4.0	%	5.0	%
East West Bank	$	3,095,245	9.1	%	4.0	%	5.0	%	$	2,754,201	8.8	%	4.0	%	5.0	%
Risk weighted assets
Company	$	27,357,753	N/A		N/A		N/A		$	25,232,575	N/A		N/A		N/A
East West Bank	$	27,310,540	N/A		N/A		N/A		$	25,129,885	N/A		N/A		N/A
Adjusted quarterly average total assets (1)
Company	$	34,209,827	N/A		N/A		N/A		$	31,458,517	N/A		N/A		N/A
East West Bank	$	34,163,667	N/A		N/A		N/A		$	31,385,333	N/A		N/A		N/A

(1) Reflects adjusted average total assets for the three months ended December 31, 2016 and 2015.

N/A = not applicable