Regulatory Capital (Tables)

3 Months Ended

Mar. 31, 2025

Banking and Thrift, Interest [Abstract]

Schedule of Regulatory Capital Requirement

The following table presents Horizon and the Bank’s actual and required capital ratios as of March 31, 2025 and December 31, 2024, as well as the revisions to Horizon's regulatory capital ratios to reflect the correction of the capital computations for the foregoing periods:

	Actual				Required for Capital Adequacy Purposes(1)				Required For Capital Adequacy Purposes with Capital Buffer(1)				Well Capitalized  Under Prompt Corrective Action Provisions(1)
	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount	Ratio
March 31, 2025
Total capital (to risk-weighted assets) 1
Consolidated	$	815,504	14.26	%	$	457,564	8.00	%	$	600,553	10.50	%	N/A	N/A
Bank	737,823		12.93		456,510		8.00		599,169		10.50		$570,637	10.00%
Tier 1 capital1(to risk-weighted assets)
Consolidated	704,937		12.33		343,173		6.00		486,162		8.50		N/A	N/A
Bank	683,028		11.97		342,382		6.00		485,042		8.50		456,510	8.00
Common equity tier 1 capital1(to risk-weighted assets)
Consolidated	647,406		11.32		257,380		4.50		400,369		7.00		N/A	N/A
Bank	683,028		11.97		256,787		4.50		399,446		7.00		370,914	6.50
Tier 1 capital (to average assets) 1
Consolidated	704,937		9.25		304,754		4.00		304,754		4.00		N/A	N/A
Bank	683,028		8.98		304,288		4.00		304,288		4.00		380,360	5.00
	Actual				Required for Capital Adequacy Purposes(1)				Required For Capital Adequacy Purposes with Capital Buffer(1)				Well Capitalized  Under Prompt Corrective Action Provisions(1)
	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount	Ratio
December 31, 2024
Total capital (to risk-weighted assets) (1)
Consolidated	$	800,209	13.91	%	$	460,266	8.00	%	$	604,099	10.50	%	N/A	N/A
Bank	725,383		12.64	%	459,039		8.00	%	602,489		10.50	%	573,799	10.00%
Tier 1 capital(1)(to risk-weighted assets)
Consolidated	690,183		12.00	%	345,199		6.00	%	489,033		8.50	%	N/A	N/A
Bank	671,095		11.70	%	344,279		6.00	%	487,729		8.50	%	459,039	8.00%
Common equity tier 1 capital(1)(to risk-weighted assets)
Consolidated	632,760		11.11	%	258,900		4.50	%	402,733		7.00	%	N/A	N/A
Bank	671,095		11.70	%	258,209		4.50	%	401,659		7.00	%	372,969	6.50%
Tier 1 capital(to average assets) (1)
Consolidated	690,183		8.88	%	310,825		4.00	%	310,825		4.00	%	N/A	N/A
Bank	671,095		8.64	%	310,539		4.00	%	310,539		4.00	%	388,174	5.00%
(1) As defined by regulatory agencies