Regulatory Matters (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Common Equity Tier 1 to Risk-Weighted Assets [Abstract]
Common equity tier 1 capital ratio, minimum capital requirement	4.50%
Capital [Abstract]
Total capital to risk-weighted assets ratio, minimum capital requirement	8.00%
Tier One Risk Based Capital [Abstract]
Tier 1 capital to risk-weighted assets ratio, minimum capital requirement	6.00%
Tier One Leverage Capital [Abstract]
Tier 1 capital to average assets ratio, minimum capital requirement	4.00%
Live Oak Bancshares, Inc.
Common Equity Tier 1 to Risk-Weighted Assets [Abstract]
Common equity tier 1 capital	$ 499,513	$ 467,033
Common equity tier 1 capital ratio	14.85%	17.10%
Common equity tier 1 capital, minimum capital requirement	$ 151,365	$ 122,937
Common equity tier 1 capital ratio, minimum capital requirement	4.50%	4.50%
Capital [Abstract]
Total capital to risk-weighted assets	$ 541,635	$ 499,467
Total capital risk to weighted--assets, actual	16.10%	18.28%
Total capital to risk-weighted assets, minimum capital requirement	$ 269,093	$ 218,555
Total capital to risk-weighted assets ratio, minimum capital requirement	8.00%	8.00%
Tier One Risk Based Capital [Abstract]
Tier 1 capital to risk-weighted assets, actual	$ 499,513	$ 467,033
Tier 1 to risk-weighted assets, actual	14.85%	17.10%
Tier 1 capital to risk-weighted assets, minimum capital requirement	$ 201,820	$ 163,917
Tier 1 capital to risk-weighted assets ratio, minimum capital requirement	6.00%	6.00%
Tier One Leverage Capital [Abstract]
Tier 1 capital to average assets, actual	$ 499,513	$ 467,033
Tier 1 to average assets, actual	10.65%	13.40%
Tier 1 capital to average assets, minimum capital requirement	$ 187,582	$ 139,453
Tier 1 capital to average assets ratio, minimum capital requirement	4.00%	4.00%
Subsidiaries
Common Equity Tier 1 to Risk-Weighted Assets [Abstract]
Common equity tier 1 capital	$ 451,807	$ 385,030
Common equity tier 1 capital ratio	13.61%	14.35%
Common equity tier 1 capital, minimum capital requirement	$ 149,370	$ 120,706
Common equity tier 1 capital ratio, minimum capital requirement	4.50%	4.50%
Common equity tier 1 capital, minimum to be well capitalized under prompt corrective action	$ 215,757	$ 174,353
Common equity tier 1 ratio, minimum to be well capitalized under prompt corrective action provisions	6.50%	6.50%
Capital [Abstract]
Total capital to risk-weighted assets	$ 493,382	$ 417,609
Total capital risk to weighted--assets, actual	14.86%	15.57%
Total capital to risk-weighted assets, minimum capital requirement	$ 265,547	$ 214,588
Total capital to risk-weighted assets ratio, minimum capital requirement	8.00%	8.00%
Total capital to risk-weighted assets, minimum to be well capitalized under prompt corrective action provisions	$ 331,934	$ 268,235
Total capital to risk-weighted assets ratio, minimum to be well capitalized under prompt corrective action provisions	10.00%	10.00%
Tier One Risk Based Capital [Abstract]
Tier 1 capital to risk-weighted assets, actual	$ 451,807	$ 385,030
Tier 1 to risk-weighted assets, actual	13.61%	14.35%
Tier 1 capital to risk-weighted assets, minimum capital requirement	$ 199,161	$ 160,941
Tier 1 capital to risk-weighted assets ratio, minimum capital requirement	6.00%	6.00%
Tier 1 capital to risk-weighted assets, minimum to be well capitalized under prompt corrective action provisions	$ 265,547	$ 214,588
Tier 1 to risk-weighted assets ratio, minimum to be well capitalized under prompt corrective action provisions	8.00%	8.00%
Tier One Leverage Capital [Abstract]
Tier 1 capital to average assets, actual	$ 451,807	$ 385,030
Tier 1 to average assets, actual	9.68%	11.22%
Tier 1 capital to average assets, minimum capital requirement	$ 186,627	$ 137,304
Tier 1 capital to average assets ratio, minimum capital requirement	4.00%	4.00%
Tier 1 capital to average assets, minimum to be well capitalized under prompt corrective action provisions	$ 233,283	$ 171,630
Tier 1 to average assets ratio, minimum to be well capitalized under prompt corrective action provisions	5.00%	5.00%

Common equity tier 1 to risk-weighted assets.

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Tier one common equity minimum to be well capitalized.

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Tier one common equity required for capital adequacy to risk weighted assets.

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The amount of total capital as defined in the regulations.

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The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action.

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The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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Total Capital divided by risk weighted assets as defined in the regulations.

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Amount of Common Equity Tier One Risk-based Capital, as defined by regulatory framework.

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Percentage of Common Equity Tier One Risk-based Capital to total risk-weighted assets, as defined by regulatory framework.

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Amount of Common Equity Tier 1 Risk-based Capital required to be categorized as adequately capitalized under regulatory framework for prompt corrective action.

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Amount of Common Equity Tier 1 Risk-based Capital required to be categorized as well-capitalized under regulatory framework for prompt corrective action.

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Tier 1 Leverage Capital as defined in the regulations. Also called Core Capital.

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The minimum amount of Tier 1 Leverage Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action.

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Tier 1 Leverage Capital divided by average assets as defined in the regulations.

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Tier 1 Risk Based Capital as defined in the regulations.

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The amount of Tier 1 Risk Based Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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Tier 1 capital divided by risk weighted assets as defined by regulations.

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