Regulatory Matters (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Bank
Tier 1 capital (to average assets)
Actual Amount	$ 724,382,000	$ 542,307,000
Actual Ratio (as a percent)	11.05%	8.84%
Minimum Capital Requirements, Amount	262,134,000	245,495,000
Minimum Capital Requirements, Ratio (as a percent)	4.00%	4.00%
Tier 1 capital (to risk-weighted assets)
Actual Amount	724,382,000	542,307,000
Actual Ratio (as a percent)	12.76%	11.83%
Minimum Capital Requirements, Amount	227,101,000	183,308,000
Minimum Capital Requirements, Ratio (as a percent)	4.00%	4.00%
Total capital (to risk-weighted assets)
Actual Amount	758,753,000	546,598,000
Actual Ratio (as a percent)	13.36%	11.93%
Minimum Capital Requirements, Amount	454,203,000	366,615,000
Minimum Capital Requirements, Ratio (as a percent)	8.00%	8.00%
Tier 1 capital (to average assets)
To Be Well Capitalized Minimum Capital Requirements, Amount	327,668,000	306,869,000
To Be Well Capitalized Minimum Capital Requirements, Ratio (as a percent)	5.00%	5.00%
Tier 1 capital (to risk-weighted assets)
To Be Well Capitalized Minimum Capital Requirements, Amount	274,961,000	274,961,000
To Be Well Capitalized Minimum Capital Requirements, Ratio (as a percent)	6.00%	6.00%
Total capital (to risk-weighted assets)
To Be Well Capitalized Minimum Capital Requirements, Amount	567,753,000	458,269,000
To Be Well Capitalized Minimum Capital Requirements, Ratio (as a percent)	10.00%	10.00%
Bank \| FNB
Total capital (to risk-weighted assets)
Actual Amount	25,000,000
Hilltop
Tier 1 capital (to average assets)
Actual Amount	986,507,000	871,379,000
Actual Ratio (as a percent)	13.96%	13.08%
Minimum Capital Requirements, Amount	282,603,000	266,514,000
Minimum Capital Requirements, Ratio (as a percent)	4.00%	4.00%
Tier 1 capital (to risk-weighted assets)
Actual Amount	986,507,000	871,379,000
Actual Ratio (as a percent)	16.56%	17.72%
Minimum Capital Requirements, Amount	238,347,000	196,670,000
Minimum Capital Requirements, Ratio (as a percent)	4.00%	4.00%
Total capital (to risk-weighted assets)
Actual Amount	1,021,436,000	875,670,000
Actual Ratio (as a percent)	17.14%	17.81%
Minimum Capital Requirements, Amount	476,695,000	393,340,000
Minimum Capital Requirements, Ratio (as a percent)	8.00%	8.00%
Hilltop \| FNB
Total capital (to risk-weighted assets)
Actual Amount	35,000,000
FSC
Financial Advisory
Net capital	69,800,000
Minimum net capital requirement	3,800,000
Net capital as a percentage of aggregate debits	37.00%
Net capital in excess of the minimum requirement	(66,000,000)
Amount required to be segregated in cash and securities for regulatory purposes		$ 19,000,000

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Represents the amount of net capital as a percentage of aggregate debit items maintained by the entity.

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The amount of net capital in excess of the alternative minimum required net capital.

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-Publisher SEC

-Name Rule 15c3

-Number 240

-Section 1

-Paragraph 1

-Subparagraph ii

-Article 15c3

-Subsection a

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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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Cash and securities deposited in a special reserve account for the exclusive benefit of customers.

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Net capital is equal to the net worth of the broker dealer, less certain items such as exchange memberships, carrying value of securities not readily marketable, haircuts on marketable securities in proprietary accounts, furniture and equipment and other illiquid assets as defined.

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-Article 15c3

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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 minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

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

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The minimum Tier One Capital Ratio (Tier one 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 Tier 1 Risk Based Capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action.

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The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) 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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- Definition

This element represents the amount of net capital of a broker or dealer that has elected not to be subject to the Aggregate Indebtedness Standard (as defined). The amount of net capital represented by this element is the greater of $250,000 or two percent of aggregate debit items computed in accordance with the Formula for Determination of Reserve Requirements for Brokers and Dealers (as defined).

+ References

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-Name Rule 15c3

-Number 240

-Section 1

-Paragraph 1

-Subparagraph ii

-Article 15c3

-Subsection a

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