Basis of Presentation and Summary of Significant Accounting Policies	9 Months Ended
Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies The accompanying unaudited condensed consolidated financial statements of PICO Holdings, Inc. and subsidiaries (collectively, the “Company” or “PICO”) have been prepared in accordance with the interim reporting requirements of Form 10-Q, pursuant to the rules and regulations of the United States Securities and Exchange Commission (the “SEC”). Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America (“U.S. GAAP”) for complete consolidated financial statements. In the opinion of management, all adjustments and reclassifications considered necessary for a fair and comparable presentation of the financial statements presented have been included and are of a normal recurring nature. Operating results presented are not necessarily indicative of the results that may be expected for the year ending December 31, 2016. These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 filed with the SEC. Use of Estimates in Preparation of Financial Statements: The preparation of condensed consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses for each reporting period. The significant estimates made in the preparation of the Company’s condensed consolidated financial statements relate to the assessment of other-than-temporary impairments, the application of the equity method of accounting, goodwill and intangibles, real estate and water assets, deferred income taxes, stock-based compensation, and contingent liabilities. It is reasonably possible that actual results could differ from the estimates upon which the carrying values were based. Noncontrolling Interest Re-allocation The Company allocates UCP, Inc. (“UCP”) Class A common stock issued in connection with the vesting of UCP restricted stock units (“RSU”) and stock-based compensation expense between additional paid-in-capital and noncontrolling interest within its condensed consolidated statements of equity. The equity allocations for the UCP, LLC operating partnership are based on the economic and voting interest percentages of the Company and its noncontrolling interest in UCP. Issuances of UCP Class A common stock for UCP RSUs affect the economic and voting interest percentages, which accordingly are adjusted at the end of each issuance period. The economic and voting interest percentages prevailing during the period are used to determine the current period equity allocations for the operating partnership. Recently Issued Accounting Pronouncements: In August 2016, the Financial Accounting Standards Board (“FASB”) issued guidance on classification of certain cash receipts and cash payments in the statement of cash flows. The amendments in this update clarify guidance on the following eight specific cash flow issues: debt prepayment or debt extinguishment costs, settlement of zero-coupon debt instruments or other instruments with coupon rates that are insignificant in relation to the effective interest rate, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, proceeds from the settlement of company-owned life insurance policies, distributions received from equity method investees, beneficial interests in securitization transactions and separately identifiable cash flows and application of the predominance principle For public business entities, the guidance is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The guidance should be applied using a retrospective transition method to each period presented. The Company is currently evaluating the effect this guidance will have on the consolidated financial statements. In April 2015, the FASB issued guidance on simplifying the presentation of debt issuance costs, which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. For public business entities, the guidance was effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. Entities are to apply the new guidance on a retrospective basis, wherein the balance sheet of each individual period presented should be adjusted to reflect the period-specific effects of applying the new guidance. The Company adopted the guidance effective January 1, 2016. Prior to adoption, the Company included debt issuance costs in other assets on its condensed consolidated balance sheets. Beginning with the Form 10-Q for the three months ended March 31, 2016, the Company changed its presentation of debt issuance costs for all periods presented and the Company reclassified $1.5 million of debt issuance costs at December 31, 2015 as a direct deduction from the carrying amounts of its debt liabilities both on the condensed consolidated balance sheets and in the notes to the condensed consolidated financial statements.

Basis of Presentation and Summary of Significant Accounting Policies

The accompanying unaudited condensed consolidated financial statements of PICO Holdings, Inc. and subsidiaries (collectively, the “Company” or “PICO”) have been prepared in accordance with the interim reporting requirements of Form 10-Q, pursuant to the rules and regulations of the United States Securities and Exchange Commission (the “SEC”). Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America (“U.S. GAAP”) for complete consolidated financial statements.

In the opinion of management, all adjustments and reclassifications considered necessary for a fair and comparable presentation of the financial statements presented have been included and are of a normal recurring nature. Operating results presented are not necessarily indicative of the results that may be expected for the year ending December 31, 2016.

These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 filed with the SEC.

Use of Estimates in Preparation of Financial Statements:

The preparation of condensed consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses for each reporting period. The significant estimates made in the preparation of the Company’s condensed consolidated financial statements relate to the assessment of other-than-temporary impairments, the application of the equity method of accounting, goodwill and intangibles, real estate and water assets, deferred income taxes, stock-based compensation, and contingent liabilities. It is reasonably possible that actual results could differ from the estimates upon which the carrying values were based.

Noncontrolling Interest Re-allocation

The Company allocates UCP, Inc. (“UCP”) Class A common stock issued in connection with the vesting of UCP restricted stock units (“RSU”) and stock-based compensation expense between additional paid-in-capital and noncontrolling interest within its condensed consolidated statements of equity. The equity allocations for the UCP, LLC operating partnership are based on the economic and voting interest percentages of the Company and its noncontrolling interest in UCP. Issuances of UCP Class A common stock for UCP RSUs affect the economic and voting interest percentages, which accordingly are adjusted at the end of each issuance period. The economic and voting interest percentages prevailing during the period are used to determine the current period equity allocations for the operating partnership.

Recently Issued Accounting Pronouncements:

In August 2016, the Financial Accounting Standards Board (“FASB”) issued guidance on classification of certain cash receipts and cash payments in the statement of cash flows. The amendments in this update clarify guidance on the following eight specific cash flow issues: debt prepayment or debt extinguishment costs, settlement of zero-coupon debt instruments or other instruments with coupon rates that are insignificant in relation to the effective interest rate, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, proceeds from the settlement of company-owned life insurance policies, distributions received from equity method investees, beneficial interests in securitization transactions and separately identifiable cash flows and application of the predominance principle For public business entities, the guidance is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The guidance should be applied using a retrospective transition method to each period presented. The Company is currently evaluating the effect this guidance will have on the consolidated financial statements.

In April 2015, the FASB issued guidance on simplifying the presentation of debt issuance costs, which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. For public business entities, the guidance was effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. Entities are to apply the new guidance on a retrospective basis, wherein the balance sheet of each individual period presented should be adjusted to reflect the period-specific effects of applying the new guidance. The Company adopted the guidance effective January 1, 2016. Prior to adoption, the Company included debt issuance costs in other assets on its condensed consolidated balance sheets. Beginning with the Form 10-Q for the three months ended March 31, 2016, the Company changed its presentation of debt issuance costs for all periods presented and the Company reclassified $1.5 million of debt issuance costs at December 31, 2015 as a direct deduction from the carrying amounts of its debt liabilities both on the condensed consolidated balance sheets and in the notes to the condensed consolidated financial statements.