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Regulatory Capital Requirements (Tables)

3 Months Ended

Mar. 31, 2019

Regulatory Capital Requirements [Abstract]

Actual Capital Amounts and Ratios

The Bank and the Company reported the following capital ratios as of March 31, 2019 and December 31, 2018:

(Bank Only)

		As of March 31, 2019								Well Capitalized⁽¹⁾				Adequately Capitalized⁽¹⁾⁽²⁾
(dollars in thousands)		Amount				Ratio				Well Capitalized⁽¹⁾				Adequately Capitalized⁽¹⁾⁽²⁾

Tier 1 leverage capital		$	492,918				9.760	%			5.000	%			4.000	%
Common equity tier 1 capital			492,918				18.299				6.500				7.000
Tier 1 risk-based capital			492,918				18.299				8.000				8.500
Total risk-based capital			526,727				19.555				10.000				10.500

		As of December 31, 2018								Well				Adequately
(dollars in thousands)		Amount				Ratio				Capitalized⁽¹⁾				Capitalized⁽¹⁾⁽³⁾

Tier 1 (core) capital		$	484,581				9.767	%			5.000	%			4.000	%
Common equity tier 1 capital			484,581				18.233				6.500				6.380
Tier 1 risk-based capital			484,581				18.233				8.000				7.880
Total risk-based capital			517,948				19.489				10.000				9.880

(Consolidated)
										Minimum for Capital Adequacy plus Capital Conservation Buffer⁽¹⁾⁽²⁾

		As of March 31, 2019
(dollars in thousands)		Amount				Ratio

Tier 1 leverage capital		$	508,176				10.057	%			4.000	%
Common equity tier 1 capital			508,176				18.856				7.000
Tier 1 risk-based capital			508,176				18.856				8.500
Total risk-based capital			542,003				20.111				10.500

(dollars in thousands)										Minimum for Capital Adequacy plus Capital Conservation Buffer⁽¹⁾⁽²⁾
		As of December 31, 2018
		Amount				Ratio

Tier 1 leverage ratio		$	499,626				10.129	%			4.000	%
Common equity Tier 1 capital			499,626				18.790				6.380
Tier 1 risk-based capital			499,626				18.790				7.880
Total risk-based capital			533,009				20.046				9.880

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

(2)	The March 31, 2019 common equity tier 1, tier 1 risk-based, and total risk-based capital ratios include a capital conservation buffer of 2.50 percent

(3)	The December 31, 2018 common equity tier 1, tier 1 risk-based, and total risk-based capital ratios include a transition capital conservation buffer of 1.88 percent