Hanmi Financial Corporation Quarterly report pursuant to Section 13 or 15(d)

Off-Balance Sheet Commitments - Distribution of Undisbursed Loan Commitments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Loss Contingencies [Line Items]
Total undisbursed loan commitments	$ 363,228		$ 273,537
Allowance for Loan Off-Balance Sheet Items [Roll Forward]
Balance at beginning of period	42,935
Provision (negative provision)	(1,525)	$ (1,673)
Balance at end of period	41,026
Non-PCI Loans [Member]
Allowance for Loan Off-Balance Sheet Items [Roll Forward]
Balance at beginning of period	37,494	51,640
Provision (negative provision)	(1,729)	(1,783)
Balance at end of period	35,381	51,515
Allowance for off-balance sheet items [Member] \| Non-PCI Loans [Member]
Allowance for Loan Off-Balance Sheet Items [Roll Forward]
Balance at beginning of period	986	1,366
Provision (negative provision)	234	(312)
Balance at end of period	1,220	$ 1,054
Commitments to extend credit [Member]
Loss Contingencies [Line Items]
Total undisbursed loan commitments	349,931		262,680
Standby letters of credit [Member]
Loss Contingencies [Line Items]
Total undisbursed loan commitments	7,943		6,839
Commercial letters of credit [Member]
Loss Contingencies [Line Items]
Total undisbursed loan commitments	$ 5,354		$ 4,018