Regulatory Capital (Tables)

12 Months Ended

Dec. 31, 2020

Banking and Thrift, Interest [Abstract]

Capital adequacy guidelines and compliance

The following tables illustrate the FRB’s adequacy guidelines and the Company’s and the Bank’s compliance with those guidelines:

	December 31, 2020
	Actual				Required for Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Regulations
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total capital (to risk-weighted assets)
Consolidated	$	1,900,621	14.63	%	$	1,039,094	8.00	%	N/A		N/A
Glacier Bank	1,824,269		14.06	%	1,038,148		8.00	%	$	1,297,686	10.00	%
Tier 1 capital (to risk-weighted assets)
Consolidated	1,613,066		12.42	%	779,321		6.00	%	N/A		N/A
Glacier Bank	1,674,714		12.91	%	778,611		6.00	%	1,038,148		8.00	%
Common Equity Tier 1 (to risk-weighted assets)
Consolidated	1,613,066		12.42	%	584,491		4.50	%	N/A		N/A
Glacier Bank	1,674,714		12.91	%	583,959		4.50	%	843,496		6.50	%
Tier 1 capital (to average assets)
Consolidated	1,613,066		9.12	%	707,823		4.00	%	N/A		N/A
Glacier Bank	1,674,714		9.56	%	700,529		4.00	%	875,662		5.00	%

	December 31, 2019
	Actual				Required for Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Regulations
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total capital (to risk-weighted assets)
Consolidated	$	1,661,249	14.95	%	$	888,986	8.00	%	N/A		N/A
Glacier Bank	1,625,527		14.64	%	888,110		8.00	%	$	1,110,137	10.00	%
Tier 1 capital (to risk-weighted assets)
Consolidated	1,528,683		13.76	%	666,740		6.00	%	N/A		N/A
Glacier Bank	1,500,461		13.52	%	666,082		6.00	%	888,110		8.00	%
Common Equity Tier 1 (to risk-weighted assets)
Consolidated	1,398,183		12.58	%	500,055		4.50	%	N/A		N/A
Glacier Bank	1,500,461		13.52	%	499,562		4.50	%	721,589		6.50	%
Tier 1 capital (to average assets)
Consolidated	1,528,683		11.65	%	524,987		4.00	%	N/A		N/A
Glacier Bank	1,500,461		11.50	%	522,040		4.00	%	652,550		5.00	%

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N/A - Not applicable