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Regulatory Capital Requirements (Tables)

3 Months Ended

Mar. 31, 2023

Regulatory Capital Requirements [Abstract]

Actual Capital Amounts and Ratios

The Bank and the Company reported the following capital ratios as of March 31, 2023 and December 31, 2022:

(Bank Only)
														Minimum for
		As of March 31, 2023								Well				Capital Adequacy plus
		As of March 31, 2023								Well				Capital Conservation
(dollars in thousands)		Amount				Ratio				Capitalized⁽¹⁾				Buffer⁽¹⁾⁽²⁾

Tier 1 leverage ratio			619,731				10.305	%			5.000	%			4.000	%
Common equity tier 1 capital			619,731				18.470				6.500				7.000
Tier 1 risk-based capital			619,731				18.470				8.000				8.500
Total risk-based capital			661,764				19.723				10.000				10.500

		As of December 31, 2022								Well				Minimum for
														Capital Adequacy plus
														Capital Conservation
(dollars in thousands)		Amount				Ratio				Capitalized⁽¹⁾				Buffer ⁽¹⁾⁽²⁾

Tier 1 leverage ratio			609,998				10.116	%			5.000	%			4.000	%
Common equity tier 1 capital			609,998				18.431				6.500				7.000
Tier 1 risk-based capital			609,998				18.431				8.000				8.500
Total risk-based capital			651,462				19.684				10.000				10.500

(Consolidated)
		As of March 31, 2023								Minimum for
										Capital Adequacy plus
										Capital Conservation
(dollars in thousands)		Amount				Ratio				Buffer⁽¹⁾⁽²⁾

Tier 1 leverage ratio			637,524				10.594	%			4.000	%
Common equity tier 1 capital			637,524				18.995				7.000
Tier 1 risk-based capital			637,524				18.995				8.500
Total risk-based capital			679,570				20.248				10.500

		As of December 31, 2022								Minimum for
										Capital Adequacy plus
										Capital Conservation
(dollars in thousands)		Amount				Ratio				Buffer⁽¹⁾⁽²⁾

Tier 1 leverage ratio			626,628				10.390	%			4.000	%
Common equity Tier 1 capital			626,628				18.929				7.000
Tier 1 risk-based capital			626,628				18.929				8.500
Total risk-based capital			668,102				20.182				10.500

(1)	Federal regulatory minimum requirements to be considered to be Well Capitalized and Adequately Capitalized

(2)	The March 31, 2023 and December 31, 2022 common equity tier 1, tier 1 risk-based, and total risk-based capital ratios include a capital conservation buffer of 2.50 percent