Summary of Significant Accounting and Reporting Policies | 1. Summary of Significant Accounting and Reporting Policies Nature of Operations Hilltop Holdings Inc. (“Hilltop” and, collectively with its subsidiaries, the “Company”) is a financial holding company registered under the Bank Holding Company Act of 1956. The Company’s primary line of business is to provide business and consumer banking services from offices located throughout Texas through PlainsCapital Bank (the “Bank”). In addition, the Company provides an array of financial products and services through its broker-dealer, mortgage origination and insurance subsidiaries. The Company provides its products and services through three primary operating subsidiaries, PlainsCapital Corporation (“PlainsCapital”), Hilltop Securities Holdings LLC (“Securities Holdings”) and National Lloyds Corporation (“NLC”). PlainsCapital is a financial holding company, headquartered in Dallas, Texas, that provides, through its subsidiaries, traditional banking and wealth , investment management and treasury management services primarily in Texas and residential mortgage lending throughout the United States. Securities Holdings is a holding company, headquartered in Dallas, Texas, that provides, through its subsidiaries, investment banking and other related financial services, including municipal advisory, sales, trading and underwriting of taxable and tax-exempt fixed income securities, equity trading, clearing, securities lending, structured finance and retail brokerage services throughout the United States. NLC is a property and casualty insurance holding company, headquartered in Waco, Texas, that provides, through its subsidiaries, fire and homeowners insurance to low value dwellings and manufactured homes primarily in Texas and other areas of the southern United States. On January 1, 2015, Hilltop completed its acquisition of SWS Group, Inc. (“SWS”) in a stock and cash transaction (the "SWS Merger"), whereby SWS’s broker-dealer subsidiaries, Southwest Securities, Inc. and SWS Financial Services, Inc., became subsidiaries of Securities Holdings, and SWS’s banking subsidiary, Southwest Securities, FSB (“SWS FSB”), was merged into the Bank. As a result of the SWS Merger, each outstanding share of SWS common stock was converted into the right to receive 0.2496 shares of Hilltop common stock and $1.94 in cash, equating to $6.92 per share based on Hilltop’s closing price on December 31, 2014 and resulting in an aggregate purchase price of $349.1 million, consisting of 10.1 million shares of common stock, $78.2 million in cash and $70.3 million associated with Hilltop’s existing investment in SWS common stock. On October 5, 2015, Southwest Securities, Inc. and SWS Financial Services, Inc. were renamed “Hilltop Securities Inc.” (“Hilltop Securities”) and “Hilltop Securities Independent Network Inc.” (“HTS Independent Network”), respectively. Basis of Presentation The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates regarding the allowance for loan losses, the fair values of financial instruments, the amounts receivable from the Federal Deposit Insurance Corporation (the “FDIC”) under the loss-share agreements (“FDIC Indemnification Asset”), reserves for losses and loss adjustment expenses (“LAE”) , the mortgage loan indemnification liability, and the potential impairment of assets are particularly subject to change. The Company has applied its critical accounting policies and estimation methods consistently in all periods presented in these consolidated financial statements. Hilltop owns 100% of the outstanding stock of PlainsCapital. PlainsCapital owns 100% of the outstanding stock of the Bank and 100% of the membership interest in PlainsCapital Equity, LLC. The Bank owns 100% of the outstanding stock of PrimeLending, a PlainsCapital Company (“PrimeLending”) and has a 100% membership interest in PlainsCapital Securities, LLC. PrimeLending owns a 100% membership interest in PrimeLending Ventures Management, LLC, the controlling and sole managing member of PrimeLending Ventures, LLC (“Ventures”). PlainsCapital also owns 100% of the outstanding common securities of PCC Statutory Trusts I, II, III and IV (the “Trusts”), which are not included in the consolidated financial statements under the requirements of the Variable Interest Entities Subsections of the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”), because the primary beneficiaries of the Trusts are not within the consolidated group. Hilltop has a 100% membership interest in Securities Holdings, which operates through its wholly-owned subsidiaries, First Southwest Holdings, LLC (“First Southwest”), Hilltop Securities and HTS Independent Network. The principal subsidiaries of First Southwest as of December 31, 2015 were First Southwest Company, LLC (“FSC”), a broker-dealer registered with the SEC and the Financial Industry Regulatory Authority (“FINRA”) and a member of the New York Stock Exchange (“NYSE”), and First Southwest Asset Management, LLC, a registered investment advisor under the Investment Advisors Act of 1940. Hilltop Securities is a broker-dealer registered with the SEC and FINRA and a member of the NYSE, and HTS Independent Network is an introducing broker-dealer that is also registered with the SEC and FINRA. Hilltop also owns 100% of NLC, which operates through its wholly owned subsidiaries, National Lloyds Insurance Company (“NLIC”) and American Summit Insurance Company (“ASIC”). The consolidated financial statements include the accounts of the above-named entities. I ntercompany transactions and balances have been eliminated. Noncontrolling interests have been recorded for minority ownership in entities that are not wholly owned and are presented in compliance with the provisions of Noncontrolling Interest in Subsidiary Subsections of the ASC. The operations acquired in the SWS Merger were included in the Company’s operating results beginning January 1, 2015 and such operations included a preliminary bargain purchase gain of $82.8 million as disclosed in the Company’s Quarterly Report on Form 10-Q filed with the SEC on May 6, 2015. In accordance with the Business Combinations Topic of the ASC, during the quarter ended June 30, 2015, the estimated fair value of the customer relationship intangible asset acquired as of January 1, 2015 was adjusted downward as a result of management’s review and approval of certain key assumptions that existed as of January 1, 2015. Additionally, during the quarter ended September 30, 2015, the estimated fair value of deferred tax assets acquired as of January 1, 2015 was adjusted upward as a result of management’s review and filing of SWS’s consolidated federal tax return for the year ended December 31, 2014. Th ese changes are reflected in the consolidated statements of operations within noninterest income during the nine months ended September 30, 2015 . In the aggregate, the se adjustments to the preliminary bargain purchase gain decreased net income for the three months ended March 31, 2015 by $1.5 million as compared with amounts previously reported in the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2015. Additionally, certain amounts previously reported in the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2015 within the consolidated balance sheet as of March 31, 2015, and the related statements of comprehensive income, stockholders’ equity and cash flows for the three months ended March 31, 2015, as well as the notes to the consolidated financial statements, will be revised in future filings. Certain reclassifications have been made to the prior period consolidated financial statements to conform with the current period presentation. Acquisition Accounting Acquisitions are accounted for under the acquisition method of accounting. Purchased assets, including identifiable intangible assets, and assumed liabilities are recorded at their respective acquisition date fair values. If the fair value of net assets purchased exceeds the consideration given, a “bargain purchase gain” is recognized. If the consideration given exceeds the fair value of the net assets received, goodwill is recognized. Securities Purchased Under Agreements to Resell Securities purchased under agreements to resell (reverse repurchase agreements or reverse repos) are treated as collateralized financings and are carried at the amounts at which the securities will subsequently be resold as specified in the agreements. The Company is in possession of collateral with a fair value equal to or in excess of the contract amounts. Securities Management classifies securities at the time of purchase and reassesses such designation at each balance sheet date. Transfers between categories from these reassessments are rare. Securities held for resale to facilitate principal transactions with customers are classified as trading, and are carried at fair value, with changes in fair value reflected in the consolidated statements of operations. Hilltop reports interest income on trading securities as interest income on securities and other changes in fair value as other noninterest income. Securities held but not intended to be held to maturity or on a long-term basis are classified as available for sale. Securities included in this category are those that management intends to use as part of its asset/liability management strategy and that may be sold in response to changes in interest rates, resultant prepayment risk, and other factors related to interest rate and resultant prepayment risk changes. Securities available for sale are carried at fair value. Unrealized holding gains and losses on securities available for sale, net of taxes, are reported in other comprehensive income (loss) until realized. Premiums and discounts are recognized in interest income using the effective interest method and consider any optionality that may be embedded in the security. Purchases and sales (and related gain or loss) of securities are recorded on the trade date, based on specific identification. Declines in the fair value of available-for-sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses to the extent the other-than-temporary impairment (“OTTI”) is related to credit losses. The amount of the OTTI related to other factors is recognized in other comprehensive income (loss). In estimating OTTI, management considers in developing its best estimate of cash flows, among other things, (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer, (iii) the historic and implied volatility of the security, (iv) failure of the issuer to make scheduled interest payments and (v) changes to the rating of the security by a rating agency. Loans Held for Sale Loans held for sale consist primarily of single-family residential mortgages funded through PrimeLending. These loans are generally on the consolidated balance sheet for no more than 30 days. Substantially all mortgage loans originated by PrimeLending are sold to various investors in the secondary market, the majority with servicing released. Mortgage loans held for sale are carried at fair value in accordance with the provisions of t he Fair Value Option Subsections of the ASC ( the “Fair Value Option”) . Changes in the fair value of the loans held for sale are recognized in earnings and fees and costs associated with origination are recognized as incurred. The specific identification method is used to determine realized gains and losses on sales of loans, which are reported as net gains (losses) in noninterest income. Loans sold are subject to certain indemnification provisions with investors, including the repurchase of loans sold and repayment of certain sales proceeds to investors under certain conditions. In ad dition, certain mortgage loans guaranteed by U.S. Government agencies and sold into Government National Mortgage Association (“GNMA”) pools may, under certain conditions specified in the government programs, become subject t o repurchase by PrimeLending. Such loans subject to repurchase no longer qualify for sale accounting and are reported as loans held for sale in the consolidated balance sheets. Loans Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are stated at the amount of unpaid principal reduced by unearned income, net unamortized deferred fees and an allowance for loan losses. Unearned income on installment loans and interest on other loans is recognized using the effective interest method. Net fees received for providing loan commitments and letters of credit that result in loans are deferred and amortized to interest income over the life of the related loan, beginning with the initial borrowing. Net fees on commitments and letters of credit that are not expected to be funded are amortized to noninterest income over the commitment period. Income on direct financing leases is recognized on a basis that achieves a constant periodic rate of return on the outstanding investment. Impaired loans include non-accrual loans, troubled debt restructurings, p urchased credit impaired (“PCI”) loans and partially charged-off loans. The accrual of interest on impaired loans is discontinued when, in management’s opinion, there is a clear indication that the borrower’s cash flow may not be sufficient to meet principal and interest payments, which is generally when a loan is 90 days past due unless the asset is both well secured and in the process of collection . When a loan is placed on non-accrual status, all previously accrued and unpaid interest is charged against income. If the ultimate collectability of principal, wholly or partially, is in doubt, any payment received on a loan on which the accrual of interest has been suspended is applied to reduce principal to the extent necessary to eliminate such doubt. Once the collection of the remaining recorded loan balance is fully expected, interest income is recognized on a cash basis. The Bank originates loans to customers primarily in Texas. Although the Bank has diversified loan and leasing portfolios and, generally, holds collateral against amounts advanced to customers, its debtors’ ability to honor their contracts is substantially dependent upon the general economic conditions of the region and of the industries in which its debtors operate, which consist primarily of agribusiness, construction , energy, real estate and wholesale/retail trade. PrimeLending originates mortgage loans to customers in its offices, which are located throughout the United States. Substantially all mortgage loans originated by PrimeLending are sold to various investors in the secondary market, the majority with servicing released, although PrimeLending does retain servicing in certain circumstances. FSC , Hilltop Sec urities and HTS Independent Network (collectively, the “Hilltop Broker-Dealers”) make loans to customers and correspondents through margin transactions originated by both employees and independent retail representatives throughout the United States. The Hilltop Broker-Dealers control or controlled risk by requiring customers to maintain margin collateral in compliance with various re gulatory and internal guidelines, which may vary based upon market conditions. Securities owned by customers and held as collateral for margin loans are not included in the consolidated financial statements. Management has defined the loans acquired in a business combination as acquired loans. Acquired loans are recorded at estimated fair value on their purchase date with no carryover of the related allowance for loan losses. Acquired loans were segregated between those considered to be credit impaired and those without credit impairment at acquisition. To make this determination, management considered such factors as past due status, nonaccrual status and credit risk ratings. The fair value of acquired performing loans was determined by discounting expected cash flows, both principal and interest, at prevailing market interest rates. The difference between the fair value and principal balances due at acquisition date, the fair value discount, is accreted into income over the estimated life of each loan. PCI loans acquired in the PlainsCapital Merger are accounted for on an individual loan basis, while PCI loans acquired in each of the FNB Transaction (defined hereinafter) and SWS Merger are accounted for in pools as well as on an individual loan basis. The Company has established under its PCI accounting policy a framework to aggregate certain acquired loans into various loan pools based on a minimum of two layers of common risk characteristics for the purpose of determining their respective fair values as of their acquisition dates, and for applying the subsequent recognition and measurement provisions for income accretion and impairment testing. The common risk characteristics used for the pooling of the First National Bank (“FNB”) and SWS PCI loans are risk grade and loan collateral type. PCI loans showed evidence of credit deterioration that makes it probable that all contractually required principal and interest payments will not be collected. Their fair value was initially based on an estimate of cash flows, both principal and interest, expected to be collected, discounted at prevailing market rates of interest. Management estimated cash flows using key assumptions such as default rates, loss severity rates assuming default, prepayment speeds and estimated collateral values. The excess of cash flows expected to be collected from a loan or pool over its estimated fair value at acquisition is referred to as the accretable yield and is recognized in interest income using an effective yield method over the remaining life of the loan or pool. Subsequent to acquisition, management must update these estimates of cash flows expected to be collected at each reporting date. These updates require the continued use of key assumptions and estimates, similar to those used in the initial estimate of fair value. The Bank accretes the discount for PCI loans for which it can predict the timing and amount of cash flows. PCI loans for which a discount is accreted are considered performing. Allowance for Loan Losses The allowance for loan losses is a reserve established through a provision for loan losses charged to expense, which represents management’s best estimate of probable losses inherent in the existing portfolio of loans at the balance sheet date. The allowance for loan losses includes allowance allocations calculated in accordance with the Interagency Policy Statement on the Allowance for Loan and Lease Losses and the Receivables and Contingencies Topics of the ASC . T he level of the allowance reflects management’s continuing evaluation of industry concentrations, specific credit risks, loan loss experience, current loan portfolio quality, present economic, political and regulatory conditions, and unidentified losses inherent in the current loan portfolio. Portions of the allowance may be allocated for specific credits; however, the entire allowance is available for any credit that, in management’s judgment, should be charged off. While management utilizes its best judgment and information available, the ultimate adequacy of the allowance is dependent upon a variety of factors beyond the Bank’s control, including the performance of the Bank’s loan portfolio, the economy and changes in interest rates. The Bank’s allowance for loan losses consists of three elements: (i) specific valuation allowances established for probable losses on impaired loans; (ii) general historical valuation allowances calculated based on historical loan loss experience for homogenous loans with similar collateral; and (iii) valuation allowances to adjust general reserves based on recent economic conditions and other qualitative risk factors both internal and external to the Bank. The Bank’s methodology regarding the calculation of the allowance for loan losses is discussed in more detail within Note 5 to the consolidated financial statements. Broker-Dealer and Clearing Organization Transactions Amounts recorded in broker-dealer and clearing organization receivables and payables include securities lending activities, as well as amounts related to securities transactions for either customers of the Hilltop Broker-Dealers or for the account of the Hilltop Broker-Dealers. Securities-borrowed and securities-loaned transactions are generally reported as collateralized financings. Securities-borrowed transactions require the Hilltop Broker-Dealers to deposit cash, letters of credit, or other collateral with the lender. With respect to securities loaned, the Hilltop Broker-Dealers receive collateral in the form of cash or other assets in an amount generally in excess of the market value of securities loaned. The Hilltop Broker-Dealers monitor the market value of securities borrowed and loaned on a daily basis, with additional collateral obtained or refunded as necessary. Interest income and interest expense associated with collateralized financings is included in the accompanying consolidated statements of operations. Insurance Premiums Receivable Insurance premiums receivable include premiums written and not yet collected. NLC routinely evaluates the receivable balance to determine if an allowance for uncollectible amounts is necessary. At December 31, 2015 and 2014 , NLC determined that no valuation allowance was necessary. Deferred Policy Acquisition Costs Costs of acquiring insurance vary with , and are primarily related to , the successful acquisition of new and renewal business, primarily consisting of commissions, premium taxes and underwriting expenses, and are deferred and amortized over the terms of the policies or reinsurance treaties to which they relate. Proceeds from reinsurance transactions that represent recovery of acquisition costs reduce applicable unamortized acquisition costs in such a manner that net acquisition costs are capitalized and charged to expense in proportion to net revenue recognized. Future investment income is considered in determining the recoverability of deferred policy acquisition costs. NLC regularly reviews the categories of acquisition costs that are deferred and assesses the recoverability of this asset. A premium deficiency and a corresponding charge to income is recognized if the sum of the expected loss and LAE , unamortized policy acquisition costs, and maintenance costs exceed related unearned insurance premiums and anticipated investment income. At December 31, 2015 and 2014 , there was no premium deficiency. Reinsurance In the normal course of business, NLC seeks to reduce the loss that may arise from catastrophes or other events that could cause unfavorable underwriting results by reinsuring certain levels of risk in various areas of exposure with other insurance enterprises or reinsurers. Amounts recoverable from reinsurers are estimated in a manner consistent with the reinsured policy. NLC routinely evaluates the receivable balance to determine if any uncollectible balances exist. Net insurance premiums earned, losses and LAE , and policy acquisition and other underwriting expenses are reported net of the amounts related to reinsurance ceded to other companies. Amounts recoverable from reinsurers related to the portions of the liability for losses and LAE and unearned insurance premiums ceded to them are included in other assets within the consolidated balance sheets. Reinsurance assumed from other companies, including assumed premiums written and earned, and losses and LAE, is accounted for in the same manner as direct insurance written. Premises and Equipment Premises and equipment are stated at cost less accumulated depreciation and amortization computed principally on the straight-line method over the estimated useful lives of the assets, which range betw een 3 and 40 years. G ains or losses on disposals of premises and equipment are included in results of operations. Other Real Estate Owned Real estate acquired through foreclosure (“OREO”) is included in other assets within the consolidated balance sheets and is carried at management’s estimate of fair value, less estimated cost to sell . Any excess of recorded investment over fair value, less cost to sell, is charged against either the allowance for loan losses or the related PCI pool discount when property is initially transferred to OREO. Subsequent to the initial transfer to OREO, downward valuation adjustments are charged against earnings . Valuation adjustments, revenue and expenses from operations of the properties and resulting gains or losses on sale are included in other noninterest expense within the consolidated statements of operations. Acquired OREO subject to FDIC loss-share agreements is referred to as “covered OREO” and reported separately in the consolidated balance sheets. Covered OREO is reported exclusive of expected reimbursement cash flows from the FDIC. Foreclosed covered loan collateral is transferred into covered OREO at the collateral’s fair value, less selling costs. Covered OREO was initially recorded at its estimated fair value based on similar market comparable valuations, less estimated selling costs. Subsequently, loan collateral transferred to OREO is recorded at its net realizable value. Any subsequent valuation adjustments due to declines in fair value of the covered OREO will be charged to noninterest expense, while a ny recoveries of previous valuation decreases will be credited to noninterest expense. FDIC Indemnification Asset The Company has elected to account for the FDIC Indemnification Asset in accordance with FASB ASC 805. The FDIC Indemnification Asset is initially recorded at fair value, based on the discounted value of expected future cash flows under the loss-share agreements. The difference between the present value and the undiscounted cash flows the Company expects to collect from the FDIC will be accreted into noninterest income within the consolidated statements of operations over the life of the FDIC Indemnification Asset. The FDIC Indemnification Asset is reviewed quarterly and the accretion rate is adjusted for changes in the timing of cash flows expected to be collected from the FDIC. Cumulative net losses over the life of the loss-share agreements of less than $240.4 million will reduce the value of the FDIC Indemnification Asset. Any amortization of changes in value of the FDIC Indemnification Asset is limited to the contractual term of the loss-share agreements. Increases and decreases to the FDIC Indemnification Asset are recorded as adjustments to noninterest income within the consolidated statements of operations over the life of the loss-share agreements. Debt Issuance Costs The Company capitalizes debt issuance costs associated with financing of debt. These costs are amortized using the effective interest method over the repayment term of the debt. Unamortized debt issuance costs are presented in the consolidated balance sheets as a reduction from the associated debt liability. Debt issuance costs of $0.4 million and $2.3 million during 2015 and 2013 were amortized and included in interest expense within the consolidated statements of operations. In April 2015, debt issuance costs of $1.9 million were capitalized in connection with Hilltop’s issuance of the 5% senior notes due 2025. In November 2013, the total remaining unamortized balance of $2.1 million related to the 7.5% Senior Exchangeable Notes due 2025 ( the “Exchangeable Notes”) was expensed as a result of the redemption of all outstanding Exchangeable Notes . Goodwill Goodwill, which represents the excess of cost over the fair value of the net assets acquired, is allocated to reporting units and tested for impairment annually, or whenever events or changes in circumstances indicate that the carrying amount should be assessed. The Company performs required annual impairment tests of its goodwill as of October 1 st for each of its reporting units , which is one level below an operating segment . Goodwill is assigned to reporting units at the date the goodwill is initially recorded. Once goodwill has been assigned to reporting units, it no longer retains its association with a particular acquisition, and all of the activities within a reporting unit, whether acquired or internally generated, are available to support the value of the goodwill. Prior to testing goodwill for impairment, the Company has the option to assess on a qualitative basis whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If determined, based on its assessment of qualitative factors that it is more likely than not that fair value of a reporting unit is less than its carrying amount, the Company will proceed to test goodwill for impairment as a part of a two-step process. The first step, used to identify potential impairment, involves comparing each reporting unit’s estimated fair value to its carrying value, including goodwill. If the carrying value exceeds the estimated fair value, there is an indication of potential impairment and the second step is performed to measure the amount of impairment. The second step involves calculating an implied fair value of goodwill for each reporting unit for which the first step indicated impairment. I f the carrying amount of a reporting unit exceeds the implied fair value of the goodwill, an impairment ch arge is recorded for the excess . The implied fair value of goodwill is determined by allocating the fair value of the reporting unit in a manner similar to a purchase price allocation. The residual fair value after this allocation is the implied fair value of the reporting unit goodwill. Intangibles and Other Long-Lived Assets Intangible assets are acquired assets that lack physical substance but can be distinguished from goodwill because of contractual or other legal rights or because the asset is capable of being sold or exchanged either on its own or in combination with a related contract, asset or liability. The Company’s intangible assets primarily consist of core deposits, trade names and customer relationships. Intangible assets with definite useful lives are generally amortized on the straight-line method over their estimated lives, although certain intangibles, including core deposits, and customer and agent relationships, are amortized on an accelerated basis. Amortization of intangible assets is recorded in other noninterest expense within the consolidated statements of operations. Intangible assets with indefinite useful lives are tested for impairment annually as of October 1 st , or more often if events or circumstances indicate there may be impairment, and not amortized until their lives are determined to be definite. Intangible assets with definite useful lives, premises and equipment, and other long-lived assets are tested for impairment whenever events or changes in circumstances indicate the carrying amount of the assets may not be recoverable from future undiscounted cash flows. If impaired, the assets are recorded at fair value. Mortgage Servicing Rights The Company determines its classes of residential mortgage servicing assets based on the asset type being serviced along with the methods used to manage the risk inherent in the servicing assets, which includes the market inputs used to value the servicing assets. The Company measures its servicing assets at fair value and reports changes in fair value through earnings. The retained mortgage servicing rights (“MSR”) asset is measured at fair value as of the date of sale of the related mortgage loan. Subsequent fair va lue measurements of the MSR asset are determined by valuing the projected net servicing cash flows, which are then discounted to estimate fair value using a discounted cash flow model. Assumptions used include market discount rates, a nticipated prepayment speeds, delinquency and foreclosure rates, and ancillary fee income. The model assumptions and the MSR asset f |