REGULATORY CAPITAL REQUIREMENTS (Tables)

12 Months Ended

Dec. 31, 2022

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Schedule of the Regulatory Capital Ratios and Minimum Regulatory Requirements

The following table shows the regulatory capital ratios of the Company and the Bank and the minimum regulatory requirements (dollars in thousands):

	Actual				Minimum for Capital Adequacy Purposes				Minimum to be Categorized as “Well-Capitalized” Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount		Ratio		Amount		Ratio
December 31, 2022:
Banner Corporation—consolidated:
Total capital to risk-weighted assets	$	1,769,064	14.04	%	$	1,008,232	8.00	%	$	1,260,290	10.00	%
Tier 1 capital to risk-weighted assets	1,528,694		12.13		756,174		6.00		756,174		6.00
Tier 1 capital to average leverage assets	1,528,694		9.45		647,345		4.00		n/a		n/a
Tier 1 common equity to risk-weighted assets	1,442,194		11.44		567,130		4.50		n/a		n/a
Banner Bank:
Total capital to risk- weighted assets	1,684,766		13.38		1,007,325		8.00		1,259,156		10.00
Tier 1 capital to risk- weighted assets	1,544,396		12.27		755,494		6.00		1,007,325		8.00
Tier 1 capital to average leverage assets	1,544,396		9.55		646,935		4.00		808,668		5.00
Tier 1 common equity to risk-weighted assets	1,544,396		12.27		566,620		4.50		818,452		6.50
December 31, 2021:
Banner Corporation—consolidated:
Total capital to risk-weighted assets	$	1,663,943	14.71	%	$	904,633	8.00	%	$	1,130,791	10.00	%
Tier 1 capital to risk-weighted assets	1,440,694		12.74		678,474		6.00		678,474		6.00
Tier 1 capital to average leverage assets	1,440,694		8.76		658,091		4.00		n/a		n/a
Tier 1 common equity to risk-weighted assets	1,305,194		11.54		508,856		4.50		n/a		n/a
Banner Bank:
Total capital to risk- weighted assets	1,552,204		13.73		904,159		8.00		1,130,199		10.00
Tier 1 capital to risk- weighted assets	1,428,955		12.64		678,119		6.00		904,159		8.00
Tier 1 capital to average leverage assets	1,428,955		8.69		657,882		4.00		822,353		5.00
Tier 1 common equity to risk-weighted assets	1,428,955		12.64		508,589		4.50		734,629		6.50