Regulatory Capital - (Tables)

3 Months Ended

Mar. 31, 2018

FDIC Loss-Sharing Related

Capital Ratio Requirements under Prompt Corrective Action or Other Regulatory Requirements

	March 31, 2018
				Required to be			Required to be
				well capitalized under			considered
				prompt corrective			adequately
	Actual			action provisions			capitalized(1)
	Ratio	Amount		Ratio	Amount		Ratio	Amount
Tier 1 leverage ratio:
Consolidated	9.6%	$	527,873	N/A		N/A	4.0%	$	220,218
NBH Bank	8.8%		482,069	5.0%	$	273,067	4.0%		218,454
Common equity tier 1 risk-based capital:
Consolidated	12.4%	$	527,873	N/A		N/A	7.0%	$	385,382
NBH Bank	11.4%		482,069	6.5%	$	354,987	7.0%		382,294
Tier 1 risk-based capital ratio:
Consolidated	12.4%	$	527,873	N/A		N/A	8.5%	$	361,114
NBH Bank	11.4%		482,069	8.0%	$	338,103	8.5%		359,234
Total risk-based capital ratio:
Consolidated	13.2%	$	559,623	N/A		N/A	10.5%	$	446,082
NBH Bank	12.2%		513,819	10.0%	$	422,628	10.5%		443,760

	December 31, 2017
				Required to be			Required to be
				well capitalized under			considered
				prompt corrective			adequately
	Actual			action provisions			capitalized(1)
	Ratio	Amount		Ratio	Amount		Ratio	Amount
Tier 1 leverage ratio:
Consolidated	9.8%	$	470,877	N/A		N/A	4.0%	$	191,559
NBH Bank	8.1%		382,918	5.0%	$	237,772	4.0%		190,217
Common equity tier 1 risk-based capital:
Consolidated	12.9%	$	470,877	N/A		N/A	7.0%	$	335,228
NBH Bank	10.6%		382,918	6.5%	$	309,103	7.0%		332,881
Tier 1 risk-based capital ratio:
Consolidated	12.9%	$	470,877	N/A		N/A	8.5%	$	309,400
NBH Bank	10.6%		382,918	8.0%	$	289,022	8.5%		307,086
Total risk-based capital ratio:
Consolidated	13.8%	$	502,917	N/A		N/A	10.5%	$	382,200
NBH Bank	11.5%		414,958	10.0%	$	361,277	10.5%		379,341

(1) As of the fully phased-in date of January 1, 2019, including the capital conservation buffer.