Regulatory Capital Requirements (Tables)

12 Months Ended

Dec. 31, 2019

Regulatory Capital Requirements

Schedule of regulatory capital ratios

					First Hawaiian				Minimum		Well-
	First Hawaiian, Inc.				Bank				Capital		Capitalized
(dollars in thousands)	Amount		Ratio		Amount		Ratio		Ratio(1)		Ratio(1)
December 31, 2019:
Common equity tier 1 capital to risk-weighted assets	$	1,676,515	11.88	%	$	1,654,304	11.72	%	4.50	%	6.50	%
Tier 1 capital to risk-weighted assets		1,676,515	11.88	%		1,654,304	11.72	%	6.00	%	8.00	%
Total capital to risk-weighted assets		1,807,645	12.81	%		1,785,434	12.65	%	8.00	%	10.00	%
Tier 1 capital to average assets (leverage ratio)		1,676,515	8.79	%		1,654,304	8.67	%	4.00	%	5.00	%
December 31, 2018:
Common equity tier 1 capital to risk-weighted assets	$	1,661,542	11.97	%	$	1,658,172	11.94	%	4.50	%	6.50	%
Tier 1 capital to risk-weighted assets		1,661,542	11.97	%		1,658,172	11.94	%	6.00	%	8.00	%
Total capital to risk-weighted assets		1,803,860	12.99	%		1,800,490	12.97	%	8.00	%	10.00	%
Tier 1 capital to average assets (leverage ratio)		1,661,542	8.72	%		1,658,172	8.70	%	4.00	%	5.00	%

(1) As defined by the regulations issued by the Board of Governors of the Federal Reserve System, the Office of the Comptroller of the Currency and the FDIC.