Bank of Hawaii Corporation Financial Statements - Schedule of Condensed Statements of Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Investment Securities Held-to-Maturity	$ 5,414,139	$ 4,694,780
Goodwill	31,517	31,517
Other Assets	573,988	384,727
Total Assets	23,606,877	22,784,941	$ 20,603,651
Liabilities
Other Liabilities	394,083	196,237
Total Liabilities	22,289,882	21,173,330
Common Shareholders’ Equity	1,316,995	1,611,611	$ 1,374,507	$ 1,286,832
Total Liabilities and Shareholders’ Equity	23,606,877	22,784,941
Parent Company
Assets
Cash with Bank of Hawai‘i	19,147	6,376
Investment Securities Held-to-Maturity	2,500	2,500
Goodwill	14,129	14,129
Other Assets	11,596	14,130
Equity in Net Assets of Subsidiaries	1,279,736	1,586,473
Total Assets	1,327,108	1,623,608
Liabilities
Income Taxes Payable	349	38
Other Liabilities	9,764	11,959
Total Liabilities	10,113	11,997
Common Shareholders’ Equity	1,316,995	1,611,611
Total Liabilities and Shareholders’ Equity	$ 1,327,108	$ 1,623,608