Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Net Investment	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Total
Balance at Dec. 31, 2013	$ 2,696,876				$ (45,765)	$ 2,651,111
Balance (in shares) at Dec. 31, 2013		139,459,620
Increase (Decrease) in Stockholders' Equity
Net income	216,672					216,672
Distributions	(192,527)					(192,527)
Contributions	5,476					5,476
Other comprehensive income, net of tax					(5,692)	(5,692)
Balance at Dec. 31, 2014	2,726,497				(51,457)	2,675,040
Balance (in shares) at Dec. 31, 2014		139,459,620
Increase (Decrease) in Stockholders' Equity
Net income	213,780					213,780
Distributions	(164,228)					(164,228)
Contributions	12,151					12,151
Other comprehensive income, net of tax					198	198
Balance at Dec. 31, 2015	2,788,200				(51,259)	$ 2,736,941
Balance (in shares) at Dec. 31, 2015		139,459,620				139,459,620
Increase (Decrease) in Stockholders' Equity
Net income | Subsequent to reorganization on April 1, 2016				$ 164,647		$ 164,647
Net income | Prior to reorganization on April 1, 2016	65,531					65,531
Net income						230,178
Distributions | Subsequent to reorganization on April 1, 2016			$ (70,813)			(70,813)
Distributions | Prior to reorganization on April 1, 2016	(363,624)					(363,624)
Contributions			61,992			61,992
Recapitalization of First Hawaiian, Inc.	$ (2,490,107)	$ 1,395	2,488,712
Cash dividends declared ($0.62 per share)				(85,797)		(85,797)
Equity-based awards (in shares)		71,034
Equity-based awards			4,360			4,360
Other comprehensive income, net of tax					(36,752)	(36,752)
Balance at Dec. 31, 2016		$ 1,395	$ 2,484,251	$ 78,850	$ (88,011)	$ 2,476,485
Balance (in shares) at Dec. 31, 2016		139,530,654				139,530,654