Regulatory Capital Matters - Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Common Equity Tier I Capital
Common Equity Tier I Capital	$ 358,600	$ 357,767
Common Equity Tier I Capital (as a percent)	10.35%	10.74%
Common Equity Tier I Capital, Minimum for Capital Adequacy Purposes	$ 155,844	$ 149,936
Common Equity Tier I Capital, Minimum for Capital Adequacy Purposes (as a percent)	4.50%	4.50%
Common Equity Tier I Capital, Minimum for Be Well Capitalized	$ 225,108	$ 216,575
Common Equity Tier I Capital, Minimum to Be Well Capitalized (as a percent)	6.50%	6.50%
Tier 1 Capital (to total adjusted assets)
Tier 1 Capital (to Total Adjusted Assets)	$ 358,600	$ 357,767
Tier 1 Capital (to Total Adjusted Assets) (as a percent)	0.1011	0.0981
Tier 1 Capital (to Total Adjusted Assets), Minimum for Capital Adequacy Purposes	$ 141,814	$ 145,933
Tier 1 Capital (to Total Adjusted Assets), Minimum for Capital Adequacy Purposes (as a percent)	0.0400	0.0400
Tier 1 Capital (to Total Adjusted Assets), Minimum to Be Well Capitalized	$ 177,267	$ 182,417
Tier 1 Capital (to Total Adjusted Assets), Minimum to Be Well Capitalized (as a percent)	0.0500	0.0500
Tier 1 Capital (to risk-weighted assets)
Tier 1 Capital (to Risk-weighted Assets)	$ 358,600	$ 357,767
Tier 1 Capital (to Risk-weighted Assets) (as a percent)	0.1035	0.1074
Tier 1 Capital (to Risk-weighted Assets), Minimum for Capital Adequacy Purposes	$ 207,792	$ 199,915
Tier 1 Capital (to Risk-weighted Assets), Minimum for Capital Adequacy Purposes (as a percent)	0.0600	0.0600
Tier 1 Capital (to Risk-weighted Assets), Minimum to Be Well Capitalized	$ 277,057	$ 266,553
Tier I Capital (to Risk-weighted Assets), Minimum to Be Well Capitalized (as a percent)	0.0800	0.0800
Total Risk-based Capital (to risk-weighted assets)
Total Risk-based Capital (to Risk-weighted Assets)	$ 381,765	$ 380,855
Total Risk-based Capital (to Risk-weighted Assets) (as a percent)	0.1102	0.1143
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum	$ 277,057	$ 266,553
Total Risk-based Capital (to Risk-weighted Assets), Minimum for Capital Adequacy Purposes (as a percent)	0.0800	0.0800
Total Risk-based Capital (to Risk-weighted Assets), Minimum to Be Well Capitalized	$ 346,321	$ 333,192
Total Risk-based Capital (to Risk-weighted Assets), Minimum to Be Well Capitalized (as a percent)	0.1000	0.1000
HomeTrust Bancshares, Inc.
Common Equity Tier I Capital
Common Equity Tier I Capital	$ 372,797	$ 375,320
Common Equity Tier I Capital (as a percent)	10.76%	11.26%
Common Equity Tier I Capital, Minimum for Capital Adequacy Purposes	$ 155,844	$ 149,943
Common Equity Tier I Capital, Minimum for Capital Adequacy Purposes (as a percent)	4.50%	4.50%
Common Equity Tier I Capital, Minimum for Be Well Capitalized	$ 225,108	$ 216,584
Common Equity Tier I Capital, Minimum to Be Well Capitalized (as a percent)	6.50%	6.50%
Tier 1 Capital (to total adjusted assets)
Tier 1 Capital (to Total Adjusted Assets)	$ 372,797	$ 375,320
Tier 1 Capital (to Total Adjusted Assets) (as a percent)	0.1050	0.1029
Tier 1 Capital (to Total Adjusted Assets), Minimum for Capital Adequacy Purposes	$ 142,028	$ 145,915
Tier 1 Capital (to Total Adjusted Assets), Minimum for Capital Adequacy Purposes (as a percent)	0.0400	0.0400
Tier 1 Capital (to Total Adjusted Assets), Minimum to Be Well Capitalized	$ 177,535	$ 182,393
Tier 1 Capital (to Total Adjusted Assets), Minimum to Be Well Capitalized (as a percent)	0.0500	0.0500
Tier 1 Capital (to risk-weighted assets)
Tier 1 Capital (to Risk-weighted Assets)	$ 372,797	$ 375,320
Tier 1 Capital (to Risk-weighted Assets) (as a percent)	0.1076	0.1126
Tier 1 Capital (to Risk-weighted Assets), Minimum for Capital Adequacy Purposes	$ 207,792	$ 199,924
Tier 1 Capital (to Risk-weighted Assets), Minimum for Capital Adequacy Purposes (as a percent)	0.0600	0.0600
Tier 1 Capital (to Risk-weighted Assets), Minimum to Be Well Capitalized	$ 277,057	$ 266,565
Tier I Capital (to Risk-weighted Assets), Minimum to Be Well Capitalized (as a percent)	0.0800	0.0800
Total Risk-based Capital (to risk-weighted assets)
Total Risk-based Capital (to Risk-weighted Assets)	$ 395,962	$ 398,408
Total Risk-based Capital (to Risk-weighted Assets) (as a percent)	0.1143	0.1196
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum	$ 277,057	$ 266,565
Total Risk-based Capital (to Risk-weighted Assets), Minimum for Capital Adequacy Purposes (as a percent)	0.0800	0.0800
Total Risk-based Capital (to Risk-weighted Assets), Minimum to Be Well Capitalized	$ 346,321	$ 333,206
Total Risk-based Capital (to Risk-weighted Assets), Minimum to Be Well Capitalized (as a percent)	0.1000	0.1000

Common Equity Tier One Risk Based Capital

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Amount of total capital as defined by regulatory framework.

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