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Fair Value of Financial Instruments | 6 Months Ended
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Jun. 30, 2019
Fair Value Disclosures [Abstract] |
Fair Value of Financial Instruments | 6. Fair Value of Financial Instruments Assets by Hierarchy Level Assets and liabilities measured at fair value on a recurring basis are summarized below (in millions):
June 30, 2019 |  |  |  | Fair Value Measurement Using:
| Total |  | Level 1 |  | Level 2 |  | Level 3
Assets |  |  |  |  |  |  |  |
Fixed maturity securities |  |  |  |  |  |  |  |
U.S. Government and government agencies |  | $ | 18.5 |  |  | $ | 4.1 |  |  | $ | 14.4 |  |  | $ | — |
States, municipalities and political subdivisions |  | 442.5 |  |  | — |  |  | 438.8 |  |  | 3.7 |
Residential mortgage-backed securities |  | 80.1 |  |  | — |  |  | 67.6 |  |  | 12.5 |
Commercial mortgage-backed securities |  | 106.4 |  |  | — |  |  | 40.0 |  |  | 66.4 |
Asset-backed securities |  | 526.2 |  |  | — |  |  | 113.6 |  |  | 412.6 |
Corporate and other |  | 2,638.9 |  |  | 17.3 |  |  | 2,463.5 |  |  | 158.1 |
Total fixed maturity securities |  | 3,812.6 |  |  | 21.4 |  |  | 3,137.9 |  |  | 653.3 |
Equity securities |  |  |  |  |  |  |  |
Common stocks |  | 22.8 |  |  | 17.9 |  |  | — |  |  | 4.9 |
Perpetual preferred stocks |  | 120.4 |  |  | 7.4 |  |  | 55.9 |  |  | 57.1 |
Total equity securities |  | 143.2 |  |  | 25.3 |  |  | 55.9 |  |  | 62.0 |
Total assets accounted for at fair value |  | $ | 3,955.8 |  |  | $ | 46.7 |  |  | $ | 3,193.8 |  |  | $ | 715.3 |
Liabilities |  |  |  |  |  |  |  |
Embedded derivative |  | $ | 2.9 |  |  | $ | — |  |  | $ | — |  |  | $ | 2.9 |
Other |  | 5.4 |  |  | — |  |  | — |  |  | 5.4 |
Total liabilities accounted for at fair value |  | $ | 8.3 |  |  | $ | — |  |  | $ | — |  |  | $ | 8.3 |
December 31, 2018 |  |  |  | Fair Value Measurement Using:
| Total |  | Level 1 |  | Level 2 |  | Level 3
Assets |  |  |  |  |  |  |  |
Fixed maturity securities |  |  |  |  |  |  |  |
U.S. Government and government agencies |  | $ | 25.4 |  |  | $ | 6.1 |  |  | $ | 19.3 |  |  | $ | — |
States, municipalities and political subdivisions |  | 421.9 |  |  | — |  |  | 421.9 |  |  | — |
Residential mortgage-backed securities |  | 94.4 |  |  | — |  |  | 75.4 |  |  | 19.0 |
Commercial mortgage-backed securities |  | 93.9 |  |  | — |  |  | 35.7 |  |  | 58.2 |
Asset-backed securities |  | 511.5 |  |  | — |  |  | 33.3 |  |  | 478.2 |
Corporate and other |  | 2,244.5 |  |  | 6.6 |  |  | 2,152.9 |  |  | 85.0 |
Total fixed maturity securities |  | 3,391.6 |  |  | 12.7 |  |  | 2,738.5 |  |  | 640.4 |
Equity securities |  |  |  |  |  |  |  |
Common stocks |  | 15.0 |  |  | 9.1 |  |  | — |  |  | 5.9 |
Perpetual preferred stocks |  | 185.5 |  |  | 7.2 |  |  | 123.0 |  |  | 55.3 |
Total equity securities |  | 200.5 |  |  | 16.3 |  |  | 123.0 |  |  | 61.2 |
Total assets accounted for at fair value |  | $ | 3,592.1 |  |  | $ | 29.0 |  |  | $ | 2,861.5 |  |  | $ | 701.6 |
Liabilities |  |  |  |  |  |  |  |
Embedded derivative |  | $ | 8.4 |  |  | $ | — |  |  | $ | — |  |  | $ | 8.4 |
Other |  | 3.5 |  |  | — |  |  | — |  |  | 3.5 |
Total liabilities accounted for at fair value |  | $ | 11.9 |  |  | $ | — |  |  | $ | — |  |  | $ | 11.9 |
The Company reviews the fair value hierarchy classifications each reporting period. Changes in the observability of the valuation attributes may result in a reclassification of certain financial assets or liabilities. Such reclassifications are reported as transfers in and out of Level 3 at the beginning fair value for the reporting period in which the changes occur. Availability of secondary market activity and consistency of pricing from third-party sources impacts the Company's ability to classify securities as Level 2 or Level 3. The Company’s assessment resulted in a net transfer into Level 3 of $73.7 million primarily related to corporate securities during the six months ended June 30, 2019. The Company’s assessment resulted in a net transfer into Level 3 of $12.3 million primarily related to corporate securities during the six months ended June 30, 2018. The methods and assumptions the Company uses to estimate the fair value of assets and liabilities measured at fair value on a recurring basis are summarized below: Fixed Maturity Securities. The fair values of the Company’s publicly-traded fixed maturity securities are generally based on prices obtained from independent pricing services. Prices from pricing services are sourced from multiple vendors, and a vendor hierarchy is maintained by asset type based on historical pricing experience and vendor expertise. In some cases, the Company receives prices from multiple pricing services for each security, but ultimately uses the price from the pricing service highest in the vendor hierarchy based on the respective asset type. Consistent with the fair value hierarchy described above, securities with validated quotes from pricing services are generally reflected within Level 2, as they are primarily based on observable pricing for similar assets and/or other market observable inputs. If the Company ultimately concludes that pricing information received from the independent pricing service is not reflective of market activity, non-binding broker quotes are used, if available. If the Company concludes the values from both pricing services and brokers are not reflective of market activity, it may override the information from the pricing service or broker with an internally developed valuation, however, this occurs infrequently. Internally developed valuations or non-binding broker quotes are also used to determine fair value in circumstances where vendor pricing is not available. These estimates may use significant unobservable inputs, which reflect the Company’s assumptions about the inputs that market participants would use in pricing the asset. Pricing service overrides, internally developed valuations and non-binding broker quotes are generally based on significant unobservable inputs and are reflected as Level 3 in the valuation hierarchy. The inputs used in the valuation of corporate and government securities include, but are not limited to, standard market observable inputs which are derived from, or corroborated by, market observable data including market yield curve, duration, call provisions, observable prices and spreads for similar publicly traded or privately traded issues that incorporate the credit quality and industry sector of the issuer. For structured securities, valuation is based primarily on matrix pricing or other similar techniques using standard market inputs including spreads for actively traded securities, spreads off benchmark yields, expected prepayment speeds and volumes, current and forecasted loss severity, rating, weighted average coupon, weighted average maturity, average delinquency rates, geographic region, debt-service coverage ratios and issuance-specific information including, but not limited to: collateral type, payment terms of the underlying assets, payment priority within the tranche, structure of the security, deal performance and vintage of loans. When observable inputs are not available, the market standard valuation techniques for determining the estimated fair value of certain types of securities that trade infrequently, and therefore have little or no price transparency, rely on inputs that are significant to the estimated fair value but that are not observable in the market or cannot be derived principally from or corroborated by observable market data. These unobservable inputs are sometimes based in large part on management judgment or estimation, and cannot be supported by reference to market activity. Even though unobservable, these inputs are based on assumptions deemed appropriate given the circumstances and are believed to be consistent with what other market participants would use when pricing such securities. The fair values of private placement securities are primarily determined using a discounted cash flow model. In certain cases, these models primarily use observable inputs with a discount rate based upon the average of spread surveys collected from private market intermediaries who are active in both primary and secondary transactions, taking into account, among other factors, the credit quality and industry sector of the issuer and the reduced liquidity associated with private placements. Generally, these securities have been reflected within Level 3. For certain private fixed maturities, the discounted cash flow model may also incorporate significant unobservable inputs, which reflect the Company’s own assumptions about the inputs market participants would use in pricing the security. To the extent management determines that such unobservable inputs are not significant to the price of a security, a Level 2 classification is made. Otherwise, a Level 3 classification is used. Equity Securities. The balance consists principally of common and preferred stock of publicly and privately traded companies. The fair values of publicly traded equity securities are primarily based on quoted market prices in active markets and are classified within Level 1 in the fair value hierarchy. The fair values of preferred equity securities, for which quoted market prices are not readily available, are based on prices obtained from independent pricing services and these securities are generally classified within Level 2 in the fair value hierarchy. The fair value of common stock of privately held companies was determined using unobservable market inputs, including volatility and underlying security values and was classified as Level 3. Cash Equivalents. The balance consists of money market instruments, which are generally valued using unadjusted quoted prices in active markets that are accessible for identical assets and are primarily classified as Level 1. Various time deposits carried as cash equivalents are not measured at estimated fair value and, therefore, are excluded from the tables presented. Level 3 Measurements and Transfers The following tables summarize changes to the Company’s financial instruments carried at fair value and classified within Level 3 of the fair value hierarchy for the three and six months ended June 30, 2019 and 2018 (in millions):
|  |  | Total realized/unrealized gains (losses) included in |  |  |  |  |  |  |  |  |
| Balance at March 31, 2019 | Net earnings (loss) | Other comp. income (loss) | Purchases and issuances | Sales and settlements | Transfer to Level 3 |  | Transfer out of Level 3 |  | Balance at June 30, 2019
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
States, municipalities and political subdivisions |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (0.5 | ) |  | $ | 4.2 |  |  | $ | — |  |  | $ | 3.7 |
Residential mortgage-backed securities |  | 13.1 |  |  | — |  |  | 0.2 |  |  | — |  |  | (0.5 | ) |  | — |  |  | (0.3 | ) |  | 12.5 |
Commercial mortgage-backed securities |  | 61.8 |  |  | — |  |  | 0.6 |  |  | 5.1 |  |  | (0.1 | ) |  | — |  |  | (1.0 | ) |  | 66.4 |
Asset-backed securities |  | 472.1 |  |  | (1.6 | ) |  | 4.7 |  |  | 39.9 |  |  | (102.5 | ) |  | — |  |  | — |  |  | 412.6 |
Corporate and other |  | 198.5 |  |  | (0.1 | ) |  | (6.0 | ) |  | 15.8 |  |  | (12.9 | ) |  | — |  |  | (37.2 | ) |  | 158.1 |
Total fixed maturity securities |  | 745.5 |  |  | (1.7 | ) |  | (0.5 | ) |  | 60.8 |  |  | (116.5 | ) |  | 4.2 |  |  | (38.5 | ) |  | 653.3 |
Equity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stocks |  | 6.1 |  |  | — |  |  | — |  |  | — |  |  | (1.0 | ) |  | — |  |  | (0.2 | ) |  | 4.9 |
Perpetual preferred stocks |  | 55.1 |  |  | (3.4 | ) |  | — |  |  | 2.5 |  |  | — |  |  | 3.0 |  |  | (0.1 | ) |  | 57.1 |
Total equity securities |  | 61.2 |  |  | (3.4 | ) |  | — |  |  | 2.5 |  |  | (1.0 | ) |  | 3.0 |  |  | (0.3 | ) |  | 62.0 |
Total financial assets |  | $ | 806.7 |  |  | $ | (5.1 | ) |  | $ | (0.5 | ) |  | $ | 63.3 |  |  | $ | (117.5 | ) |  | $ | 7.2 |  |  | $ | (38.8 | ) |  | $ | 715.3 |
|  |  |  | Total realized/unrealized (gains) losses included in |  |  |  |  |  |  |  |  |  |
| Balance at March 31, 2019 | Net (earnings) loss | Other comp. (income) loss | Purchases and issuances | Sales and settlements |  | Transfer to Level 3 |  | Transfer out of Level 3 |  | Balance at June 30, 2019
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Embedded derivative |  | $ | 6.1 |  |  | $ | (3.2 | ) |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 2.9 |
Other |  | 2.7 |  |  | (0.3 | ) |  | — |  |  | 3.0 |  |  | — |  |  | — |  |  | — |  |  | 5.4 |
Total financial liabilities |  | $ | 8.8 |  |  | $ | (3.5 | ) |  | $ | — |  |  | $ | 3.0 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 8.3 |
|  |  | Total realized/unrealized gains (losses) included in |  |  |  |  |  |  |  |  |
| Balance at December 31, 2018 | Net earnings (loss) | Other comp. income (loss) | Purchases and issuances | Sales and settlements | Transfer to Level 3 |  | Transfer out of Level 3 |  | Balance at June 30, 2019
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
States, municipalities and political subdivisions |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (0.5 | ) |  | $ | 4.2 |  |  | $ | — |  |  | $ | 3.7 |
Residential mortgage-backed securities |  | 19.0 |  |  | — |  |  | 0.3 |  |  | — |  |  | (0.8 | ) |  | — |  |  | (6.0 | ) |  | 12.5 |
Commercial mortgage-backed securities |  | 58.2 |  |  | — |  |  | 2.1 |  |  | 7.5 |  |  | (0.5 | ) |  | — |  |  | (0.9 | ) |  | 66.4 |
Asset-backed securities |  | 478.2 |  |  | (1.6 | ) |  | 18.0 |  |  | 88.5 |  |  | (176.1 | ) |  | 5.6 |  |  | — |  |  | 412.6 |
Corporate and other |  | 85.0 |  |  | (0.1 | ) |  | 2.3 |  |  | 20.4 |  |  | (17.5 | ) |  | 105.0 |  |  | (37.0 | ) |  | 158.1 |
Total fixed maturity securities |  | 640.4 |  |  | (1.7 | ) |  | 22.7 |  |  | 116.4 |  |  | (195.4 | ) |  | 114.8 |  |  | (43.9 | ) |  | 653.3 |
Equity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stocks |  | 5.9 |  |  | 0.2 |  |  | — |  |  | — |  |  | (1.0 | ) |  | — |  |  | (0.2 | ) |  | 4.9 |
Perpetual preferred stocks |  | 55.3 |  |  | (3.7 | ) |  | — |  |  | 2.5 |  |  | — |  |  | 3.0 |  |  | — |  |  | 57.1 |
Total equity securities |  | 61.2 |  |  | (3.5 | ) |  | — |  |  | 2.5 |  |  | (1.0 | ) |  | 3.0 |  |  | (0.2 | ) |  | 62.0 |
Total financial assets |  | $ | 701.6 |  |  | $ | (5.2 | ) |  | $ | 22.7 |  |  | $ | 118.9 |  |  | $ | (196.4 | ) |  | $ | 117.8 |  |  | $ | (44.1 | ) |  | $ | 715.3 |
|  |  |  | Total realized/unrealized (gains) losses included in |  |  |  |  |  |  |  |  |  |
| Balance at December 31, 2018 | Net (earnings) loss | Other comp. (income) loss | Purchases and issuances | Sales and settlements |  | Transfer to Level 3 |  | Transfer out of Level 3 |  | Balance at June 30, 2019
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Embedded derivative |  | $ | 8.4 |  |  | $ | (5.5 | ) |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 2.9 |
Other |  | 3.5 |  |  | (1.1 | ) |  | — |  |  | 3.0 |  |  | — |  |  | — |  |  | — |  |  | 5.4 |
Total financial liabilities |  | $ | 11.9 |  |  | $ | (6.6 | ) |  | $ | — |  |  | $ | 3.0 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 8.3 |
|  |  |  | Total realized/unrealized gains (losses) included in |  |  |  |  |  |  |  |  |  |
| Balance at March 31, 2018 | Net earnings (loss) | Other comp. income (loss) | Purchases and issuances | Sales and settlements | Transfer to Level 3 | Transfer out of Level 3 | Balance at June 30, 2018
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
States, municipalities and political subdivisions |  | $ | 6.4 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (6.0 | ) |  | $ | 0.4 |
Residential mortgage-backed securities |  | 7.2 |  |  | — |  |  | 0.3 |  |  | — |  |  | (0.8 | ) |  | 5.6 |  |  | — |  |  | 12.3 |
Commercial mortgage-backed securities |  | 17.8 |  |  | — |  |  | (0.2 | ) |  | 4.5 |  |  | — |  |  | — |  |  | — |  |  | 22.1 |
Asset-backed securities |  | 137.9 |  |  | 0.5 |  |  | (1.8 | ) |  | 18.5 |  |  | (19.4 | ) |  | — |  |  | (2.9 | ) |  | 132.8 |
Corporate and other |  | 37.6 |  |  | — |  |  | (0.8 | ) |  | 23.9 |  |  | (2.6 | ) |  | 9.1 |  |  | — |  |  | 67.2 |
Total fixed maturity securities |  | 206.9 |  |  | 0.5 |  |  | (2.5 | ) |  | 46.9 |  |  | (22.8 | ) |  | 14.7 |  |  | (8.9 | ) |  | 234.8 |
Equity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stocks |  | 0.6 |  |  | (0.1 | ) |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 0.5 |
Perpetual preferred stocks |  | 23.9 |  |  | 0.4 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 24.3 |
Total equity securities |  | 24.5 |  |  | 0.3 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 24.8 |
Derivatives |  | 0.3 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 0.3 |
Total financial assets |  | $ | 231.7 |  |  | $ | 0.8 |  |  | $ | (2.5 | ) |  | $ | 46.9 |  |  | $ | (22.8 | ) |  | $ | 14.7 |  |  | $ | (8.9 | ) |  | $ | 259.9 |
|  |  |  | Total realized/unrealized (gains) losses included in |  |  |  |  |  |  |  |  |  |
| Balance at March 31, 2018 | Net (earnings) loss | Other comp. (income) loss | Purchases and issuances | Sales and settlements | Transfer to Level 3 | Transfer out of Level 3 | Balance at June 30, 2018
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other |  | $ | 4.1 |  |  | $ | 0.1 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 4.2 |
Total financial liabilities |  | $ | 4.1 |  |  | $ | 0.1 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 4.2 |
|  |  |  | Total realized/unrealized gains (losses) included in |  |  |  |  |  |  |  |  |  |
| Balance at December 31, 2017 | Net earnings (loss) | Other comp. income (loss) | Purchases and issuances | Sales and settlements | Transfer to Level 3 | Transfer out of Level 3 | Balance at June 30, 2018
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
States, municipalities and political subdivisions |  | $ | 6.0 |  |  | $ | — |  |  | $ | (0.1 | ) |  | $ | 0.1 |  |  | $ | — |  |  | $ | 0.4 |  |  | $ | (6.0 | ) |  | $ | 0.4 |
Residential mortgage-backed securities |  | 14.6 |  |  | 0.1 |  |  | 0.6 |  |  | — |  |  | (5.1 | ) |  | 5.5 |  |  | (3.4 | ) |  | 12.3 |
Commercial mortgage-backed securities |  | 12.2 |  |  | (0.1 | ) |  | (0.3 | ) |  | 10.3 |  |  | — |  |  | — |  |  | — |  |  | 22.1 |
Asset-backed securities |  | 133.7 |  |  | 1.2 |  |  | (3.2 | ) |  | 68.0 |  |  | (64.0 | ) |  | — |  |  | (2.9 | ) |  | 132.8 |
Corporate and other |  | 26.3 |  |  | 0.1 |  |  | (0.9 | ) |  | 29.0 |  |  | (3.0 | ) |  | 15.7 |  |  | — |  |  | 67.2 |
Total fixed maturity securities |  | 192.8 |  |  | 1.3 |  |  | (3.9 | ) |  | 107.4 |  |  | (72.1 | ) |  | 21.6 |  |  | (12.3 | ) |  | 234.8 |
Equity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stocks |  | 0.2 |  |  | (0.1 | ) |  | — |  |  | — |  |  | — |  |  | 0.4 |  |  | — |  |  | 0.5 |
Perpetual preferred stocks |  | 6.4 |  |  | 0.4 |  |  | — |  |  | 14.9 |  |  | — |  |  | 2.6 |  |  | — |  |  | 24.3 |
Total equity securities |  | 6.6 |  |  | 0.3 |  |  | — |  |  | 14.9 |  |  | — |  |  | 3.0 |  |  | — |  |  | 24.8 |
Derivatives |  | 0.3 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 0.3 |
Total financial assets |  | $ | 199.7 |  |  | $ | 1.6 |  |  | $ | (3.9 | ) |  | $ | 122.3 |  |  | $ | (72.1 | ) |  | $ | 24.6 |  |  | $ | (12.3 | ) |  | $ | 259.9 |
|  |  |  | Total realized/unrealized (gains) losses included in |  |  |  |  |  |  |  |  |  |
| Balance at December 31, 2017 | Net (earnings) loss | Other comp. (income) loss | Purchases and issuances | Sales and settlements | Transfer to Level 3 | Transfer out of Level 3 | Balance at June 30, 2018
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other |  | $ | 4.8 |  |  | $ | (0.6 | ) |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 4.2 |
Total financial liabilities |  | $ | 4.8 |  |  | $ | (0.6 | ) |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 4.2 |
Internally developed fair values of Level 3 assets represent less than 1% of the Company’s total assets. Any justifiable changes in unobservable inputs used to determine internally developed fair values would not have a material impact on the Company’s financial position. Fair Value of Financial Instruments Not Measured at Fair Value The following table presents the carrying amounts and estimated fair values of the Company’s financial instruments, which were not measured at fair value on a recurring basis. The table excludes carrying amounts for cash and cash equivalents, accounts receivable, accounts payable and other current liabilities, and other assets and liabilities approximate fair value due to relatively short periods to maturity (in millions):
June 30, 2019 |  |  |  |  |  | Fair Value Measurement Using:
| Carrying Value |  | Estimated Fair Value |  | Level 1 |  | Level 2 |  | Level 3
Assets |  |  |  |  |  |  |  |  |  |
Mortgage loans |  | $ | 151.8 |  |  | $ | 151.8 |  |  | $ | — |  |  | $ | — |  |  | $ | 151.8 |
Policy loans |  | 19.4 |  |  | 19.4 |  |  | — |  |  | 19.4 |  |  | — |
Total assets not accounted for at fair value |  | $ | 171.2 |  |  | $ | 171.2 |  |  | $ | — |  |  | $ | 19.4 |  |  | $ | 151.8 |
Liabilities |  |  |  |  |  |  |  |  |  |
Annuity benefits accumulated (1) |  | $ | 237.8 |  |  | $ | 235.2 |  |  | $ | — |  |  | $ | — |  |  | $ | 235.2 |
Debt obligations (2) |  | 789.0 |  |  | 758.4 |  |  | — |  |  | 758.4 |  |  | — |
Total liabilities not accounted for at fair value |  | $ | 1,026.8 |  |  | $ | 993.6 |  |  | $ | — |  |  | $ | 758.4 |  |  | $ | 235.2 |
December 31, 2018 |  |  |  |  |  | Fair Value Measurement Using:
| Carrying Value |  | Estimated Fair Value |  | Level 1 |  | Level 2 |  | Level 3
Assets |  |  |  |  |  |  |  |  |  |
Mortgage loans |  | $ | 137.6 |  |  | $ | 137.6 |  |  | $ | — |  |  | $ | — |  |  | $ | 137.6 |
Policy loans |  | 19.8 |  |  | 19.8 |  |  | — |  |  | 19.8 |  |  | — |
Other invested assets |  | 1.6 |  |  | 1.6 |  |  | — |  |  | — |  |  | 1.6 |
Total assets not accounted for at fair value |  | $ | 159.0 |  |  | $ | 159.0 |  |  | $ | — |  |  | $ | 19.8 |  |  | $ | 139.2 |
Liabilities |  |  |  |  |  |  |  |  |  |
Annuity benefits accumulated (1) |  | $ | 244.0 |  |  | $ | 241.7 |  |  | $ | — |  |  | $ | — |  |  | $ | 241.7 |
Debt obligations (2) |  | 702.5 |  |  | 703.0 |  |  | — |  |  | 703.0 |  |  | — |
Total liabilities not accounted for at fair value |  | $ | 946.5 |  |  | $ | 944.7 |  |  | $ | — |  |  | $ | 703.0 |  |  | $ | 241.7 |
(1) Excludes life contingent annuities in the payout phase. (2) Excludes certain lease obligations accounted for under ASC 842, Leases. Mortgage Loans on Real Estate. The fair value of mortgage loans on real estate is estimated by discounting cash flows, both principal and interest, using current interest rates for mortgage loans with similar credit ratings and similar remaining maturities. As such, inputs include current treasury yields and spreads, which are based on the credit rating and average life of the loan, corresponding to the market spreads. The valuation of mortgage loans on real estate is considered Level 3 in the fair value hierarchy. Annuity Benefits Accumulated. The fair value of annuity benefits was determined using the surrender values of the annuities and classified as Level 3. Long-term Obligations. The fair value of the Company’s long-term obligations was determined using Bloomberg Valuation Service BVAL. The methodology combines direct market observations from contributed sources with quantitative pricing models to generate evaluated prices and classified as Level 2.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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