Significant Accounting Policies Significant Accounting Policies	9 Months Ended
Sep. 30, 2018
Accounting Policies [Abstract]
Significant Accounting Policies	SIGNIFICANT ACCOUNTING POLICIES (a) Changes to Significant Accounting Policies We have made no changes to our significant accounting policies as reported in our Annual Report on Form 10-K for the year ended December 31, 2017, except as noted below. (b) Income Taxes As of September 30, 2018, we have not fully completed our accounting for the tax effects of the enactment of the legislation commonly known as the Tax Cuts and Jobs Act of 2017 (Tax Act) with regards to the deductibility of compensation expense for certain covered executives due to uncertainty surrounding the appropriate tax treatment of outstanding performance-based awards and the grandfather rule for existing executive compensation agreements and the uncertainty surrounding the discount factors to be applied for loss reserve discounting. The U.S. Treasury Department and the Internal Revenue Service has recently issued further clarification and guidance on the deductibility of compensation expense that we are currently reviewing for potential impact on our accounting and disclosures. Interpretive guidance of the Tax Act will be received throughout 2018, and we expect to update our estimates and our disclosure on a quarterly basis as interpretive guidance is received within each quarter that it is received. (c) Reinsurance We record provisional ceding commissions that we receive in connection with our reinsurance contracts for the 2018 underwriting year as an offset to deferred acquisition costs to the extent that they relate to compensation for acquisition costs that are incurred that are deferrable. The remaining provisional ceding commissions are recorded as unearned reinsurance commission and are recognized as an offset to other acquisition costs based in proportion to the premiums earned or coverage provided by the reinsurance contracts. (d) Recently Adopted Accounting Pronouncements In May 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting (ASU 2017-09). This standard provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU 2017-09 is effective for annual periods beginning after December 15, 2017, including interim periods within those annual periods, with early adoption permitted for certain requirements. We did not early adopt and the new guidance did not impact the way in which we account for share-based payment transactions. Therefore, the adoption as of January 1, 2018 had no impact on our results of operations. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (ASU 2016-18). This standard provides guidance on the presentation of restricted cash in the statement of cash flows. We are required to explain the changes during a reporting period in the total of cash, cash equivalents and amounts generally described as restricted cash or restricted cash equivalents in the statement of cash flows. We retrospectively adopted this standard on April 1, 2018. The adoption of this new accounting standard impacted the presentation of our Unaudited Condensed Consolidated Statement of Cash Flows but had no effect on our results of operations. The restricted cash on our Condensed Consolidated Balance Sheets at September 30, 2018 and December 31, 2017 represents cash that is held in trust for assumed business and cash held in deposit accounts to satisfy state statutory deposit requirements. In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities (ASU 2016-01). This update substantially revises standards for the recognition, measurement and presentation of financial instruments. This standard revised our accounting related to (1) the classification and measurement of investments in equity securities and (2) the presentation of certain fair value changes for financial liabilities measured at fair value. It also amended certain disclosure requirements associated with the fair value of financial instruments. ASU 2016-01 is effective for annual periods beginning after December 15, 2017, including interim periods within those annual periods, with early adoption permitted for certain requirements. We adopted this standard as of January 1, 2018, which resulted in a reclassification of a $9,338,000 gain, net of tax, on equity securities from accumulated other comprehensive income to retained earnings on our condensed consolidated financial statements. Refer to Note 14 in these Notes to Unaudited Condensed Consolidated Financial Statements for a reconciliation. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (ASU 2014-09). Insurance contracts are excluded from the scope of this standard. Under the standard, guidance is provided on revenue recognition for entities that enter into contracts with customers to transfer goods or services or enter into contracts for the transfer of nonfinancial assets. The transaction price is attributed to underlying performance obligations in the contract and revenue is recognized as the entity satisfies the performance obligation and transfers control of the good or service to the customer. ASU 2014-09 is effective beginning in the first quarter of 2018. We adopted this standard as of January 1, 2018. The adoption of this new accounting standard did not have an impact on our condensed consolidated financial statements and related disclosures. (e) Pending Accounting Pronouncements We have evaluated recent accounting pronouncements that have had or may have a significant effect on our financial statements or on our disclosures. In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (ASU 2018-13). This update modifies the existing disclosure requirements on fair value measurements in Topic 820 by changing requirements regarding Level 1, Level 2 and Level 3 investments. ASU 2018-13 is effective for annual reporting periods beginning after December 15, 2019, including interim periods within those annual periods, with early adoption permitted. Entities are permitted to early adopt any removed or modified disclosures of ASU 2018-13 immediately and delay the adoption of the additional disclosures until their effective date. We have early adopted the guidance on removed and modified disclosures. We do not intend to early adopt the additional disclosures and are assessing the impact of retrospectively adopting the additions from this new accounting standard on our fair value disclosures. In January 2017, the FASB issued ASU No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (ASU 2017-04). This update simplifies the manner in which an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. ASU 2017-07 is effective for annual periods beginning after December 15, 2019, including interim periods within those annual periods, with early adoption permitted for certain requirements. We do not intend to early adopt and are assessing the impact of prospectively adopting this new accounting standard on our condensed consolidated financial statements and related disclosures. Any impact of the standard on our condensed consolidated financial statements and related disclosures will be dependent on market conditions of the reporting units at the time of adoption. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (ASU 2016-02). This update is intended to replace existing lease guidance by requiring a lessee to recognize substantially all leases (whether operating or finance leases) on the balance sheet as a right-of-use asset and an associated lease liability. Short-term leases of 12 months or less are excluded from this amendment. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, with early adoption permitted. We do not intend to early adopt and are assessing the impact of adopting this new accounting standard on our condensed consolidated financial statements and related disclosures using a modified retrospective approach upon adoption. We are currently quantifying the expected recognition on our balance sheet for a right to use asset and a lease liability as required by this standard.

SIGNIFICANT ACCOUNTING POLICIES

(a) Changes to Significant Accounting Policies

We have made no changes to our significant accounting policies as reported in our Annual Report on Form 10-K for the year ended December 31, 2017, except as noted below.

(b) Income Taxes

As of September 30, 2018, we have not fully completed our accounting for the tax effects of the enactment of the legislation commonly known as the Tax Cuts and Jobs Act of 2017 (Tax Act) with regards to the deductibility of compensation expense for certain covered executives due to uncertainty surrounding the appropriate tax treatment of outstanding performance-based awards and the grandfather rule for existing executive compensation agreements and the uncertainty surrounding the discount factors to be applied for loss reserve discounting. The U.S. Treasury Department and the Internal Revenue Service has recently issued further clarification and guidance on the deductibility of compensation expense that we are currently reviewing for potential impact on our accounting and disclosures. Interpretive guidance of the Tax Act will be received throughout 2018, and we expect to update our estimates and our disclosure on a quarterly basis as interpretive guidance is received within each quarter that it is received.

We record provisional ceding commissions that we receive in connection with our reinsurance contracts for the 2018 underwriting year as an offset to deferred acquisition costs to the extent that they relate to compensation for acquisition costs that are incurred that are deferrable. The remaining provisional ceding commissions are recorded as unearned reinsurance commission and are recognized as an offset to other acquisition costs based in proportion to the premiums earned or coverage provided by the reinsurance contracts.

(d) Recently Adopted Accounting Pronouncements

In May 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting (ASU 2017-09). This standard provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU 2017-09 is effective for annual periods beginning after December 15, 2017, including interim periods within those annual periods, with early adoption permitted for certain requirements. We did not early adopt and the new guidance did not impact the way in which we account for share-based payment transactions. Therefore, the adoption as of January 1, 2018 had no impact on our results of operations.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (ASU 2016-18). This standard provides guidance on the presentation of restricted cash in the statement of cash flows. We are required to explain the changes during a reporting period in the total of cash, cash equivalents and amounts generally described as restricted cash or restricted cash equivalents in the statement of cash flows. We retrospectively adopted this standard on April 1, 2018. The adoption of this new accounting standard impacted the presentation of our Unaudited Condensed Consolidated Statement of Cash Flows but had no effect on our results of operations. The restricted cash on our Condensed Consolidated Balance Sheets at September 30, 2018 and December 31, 2017 represents cash that is held in trust for assumed business and cash held in deposit accounts to satisfy state statutory deposit requirements.

In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities (ASU 2016-01). This update substantially revises standards for the recognition, measurement and presentation of financial instruments. This standard revised our accounting related to (1) the classification and measurement of investments in equity securities and (2) the presentation of certain fair value changes for financial liabilities measured at fair value. It also amended certain disclosure requirements associated with the fair value of financial instruments. ASU 2016-01 is effective for annual periods beginning after December 15, 2017, including interim periods within those annual periods, with early adoption permitted for certain requirements. We adopted this standard as of January 1, 2018, which resulted in a reclassification of a $9,338,000 gain, net of tax, on equity securities from accumulated other comprehensive income to retained earnings on our condensed consolidated financial statements. Refer to Note 14 in these Notes to Unaudited Condensed Consolidated Financial Statements for a reconciliation.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (ASU 2014-09). Insurance contracts are excluded from the scope of this standard. Under the standard, guidance is provided on revenue recognition for entities that enter into contracts with customers to transfer goods or services or enter into contracts for the transfer of nonfinancial assets. The transaction price is attributed to underlying performance obligations in the contract and revenue is recognized as the entity satisfies the performance obligation and transfers control of the good or service to the customer. ASU 2014-09 is effective beginning in the first quarter of 2018. We adopted this standard as of January 1, 2018. The adoption of this new accounting standard did not have an impact on our condensed consolidated financial statements and related disclosures.

(e) Pending Accounting Pronouncements

We have evaluated recent accounting pronouncements that have had or may have a significant effect on our financial statements or on our disclosures.

In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (ASU 2018-13). This update modifies the existing disclosure requirements on fair value measurements in Topic 820 by changing requirements regarding Level 1, Level 2 and Level 3 investments. ASU 2018-13 is effective for annual reporting periods beginning after December 15, 2019, including interim periods within those annual periods, with early adoption permitted. Entities are permitted to early adopt any removed or modified disclosures of ASU 2018-13 immediately and delay the adoption of the additional disclosures until their effective date. We have early adopted the guidance on removed and modified disclosures. We do not intend to early adopt the additional disclosures and are assessing the impact of retrospectively adopting the additions from this new accounting standard on our fair value disclosures.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (ASU 2017-04). This update simplifies the manner in which an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. ASU 2017-07 is effective for annual periods beginning after December 15, 2019, including interim periods within those annual periods, with early adoption permitted for certain requirements. We do not intend to early adopt and are assessing the impact of prospectively adopting this new accounting standard on our condensed consolidated financial statements and related disclosures. Any impact of the standard on our condensed consolidated financial statements and related disclosures will be dependent on market conditions of the reporting units at the time of adoption.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (ASU 2016-02). This update is intended to replace existing lease guidance by requiring a lessee to recognize substantially all leases (whether operating or finance leases) on the balance sheet as a right-of-use asset and an associated lease liability. Short-term leases of 12 months or less are excluded from this amendment. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, with early adoption permitted. We do not intend to early adopt and are assessing the impact of adopting this new accounting standard on our condensed consolidated financial statements and related disclosures using a modified retrospective approach upon adoption. We are currently quantifying the expected recognition on our balance sheet for a right to use asset and a lease liability as required by this standard.