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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2017
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements The following table presents the carrying amounts and estimated fair values of our financial instruments as of December 31, 2017 and 2016:
|  | December 31, 2017 |  | December 31, 2016
($ in thousands) |  | Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
Financial Assets |  |  |  |  |  |  |  |  |  |  |  |
Fixed income securities: |  |  |  |  |  |  |  |  |  |  |  |
HTM |  | $ | 42,129 |  |  | 44,100 |  |  | 101,556 |  |  | 105,211 |
AFS |  | 5,162,522 |  |  | 5,162,522 |  |  | 4,792,540 |  |  | 4,792,540 |
Equity securities, AFS |  | 182,705 |  |  | 182,705 |  |  | 146,753 |  |  | 146,753 |
Short-term investments |  | 165,555 |  |  | 165,555 |  |  | 221,701 |  |  | 221,701 |
Long-term debt: |  |  |  |  |  |  |  |
7.25% Senior Notes |  | 49,904 |  |  | 61,391 |  |  | 49,901 |  |  | 56,148 |
6.70% Senior Notes |  | 99,446 |  |  | 116,597 |  |  | 99,430 |  |  | 108,333 |
5.875% Senior Notes |  | 185,000 |  |  | 186,332 |  |  | 185,000 |  |  | 176,860 |
1.61% Borrowings from FHLBNY |  | 25,000 |  |  | 24,270 |  |  | 25,000 |  |  | 24,286 |
1.56% Borrowings from FHLBNY |  | 25,000 |  |  | 24,210 |  |  | 25,000 |  |  | 24,219 |
3.03% Borrowings from FHLBI |  | 60,000 |  |  | 60,334 |  |  | 60,000 |  |  | 59,313 |
Subtotal long-term debt |  | 444,350 |  |  | 473,134 |  |  | 444,331 |  |  | 449,159 |
Unamortized debt issuance costs |  | (5,234 | ) |  |  |  | (5,664 | ) |  |
Total long-term debt |  | $ | 439,116 |  |  |  |  |  | 438,667 |  |  |  |
For discussion regarding the fair value techniques of our financial instruments, refer to Note 2. "Summary of Significant Accounting Policies" in this Form 10-K. The following tables provide quantitative disclosures of our financial assets that were measured and recorded at fair value at December 31, 2017 and 2016:
December 31, 2017 |  |  |  | Fair Value Measurements Using
($ in thousands) |  | Assets Measured at Fair Value |  | Quoted Prices in Active Markets for Identical Assets/ Liabilities (Level 1)1 |  | Significant Other Observable Inputs (Level 2)1 |  | Significant Unobservable Inputs (Level 3)
Description |  |  |  |  |  |  |  |  |  |  |  |
Measured on a recurring basis: |  |  |  |  |  |  |  |  |  |  |  |
AFS fixed income securities: |  |  |  |  |  |  |  |
U.S. government and government agencies |  | $ | 49,740 |  |  | 24,652 |  |  | 25,088 |  |  | — |
Foreign government |  | 18,555 |  |  | — |  |  | 18,555 |  |  | — |
Obligations of states and political subdivisions |  | 1,582,970 |  |  | — |  |  | 1,582,970 |  |  | — |
Corporate securities |  | 1,617,468 |  |  | — |  |  | 1,617,468 |  |  | — |
CLO and other ABS |  | 795,458 |  |  | — |  |  | 795,458 |  |  | — |
CMBS |  | 383,449 |  |  | — |  |  | 376,895 |  |  | 6,554 |
RMBS |  | 714,882 |  |  | — |  |  | 714,882 |  |  | — |
Total AFS fixed income securities |  | 5,162,522 |  |  | 24,652 |  |  | 5,131,316 |  |  | 6,554 |
AFS equity securities: |  |  |  |  |  |  |  |
Common stock2 |  | 167,757 |  |  | 138,640 |  |  | — |  |  | 5,398 |
Preferred stock |  | 14,948 |  |  | 14,948 |  |  | — |  |  | — |
Total AFS equity securities |  | 182,705 |  |  | 153,588 |  |  | — |  |  | 5,398 |
Total AFS securities |  | 5,345,227 |  |  | 178,240 |  |  | 5,131,316 |  |  | 11,952 |
Short-term investments |  | 165,555 |  |  | 165,555 |  |  | — |  |  | — |
Total assets measured at fair value |  | $ | 5,510,782 |  |  | 343,795 |  |  | 5,131,316 |  |  | 11,952 |
December 31, 2016 |  |  |  | Fair Value Measurements Using
($ in thousands) |  | Assets Measured at Fair Value |  | Quoted Prices in Active Markets for Identical Assets/ Liabilities (Level 1)1 |  | Significant Other Observable Inputs (Level 2)1 |  | Significant Unobservable Inputs (Level 3)
Description |  |  |  |  |  |  |  |  |  |  |  |
Measured on a recurring basis: |  |  |  |  |  |  |  |  |  |  |  |
AFS fixed income securities: |  |  |  |  |  |  |  |
U.S. government and government agencies |  | $ | 77,333 |  |  | 27,520 |  |  | 49,813 |  |  | — |
Foreign government |  | 26,865 |  |  | — |  |  | 26,865 |  |  | — |
Obligations of states and political subdivisions |  | 1,379,593 |  |  | — |  |  | 1,379,593 |  |  | — |
Corporate securities |  | 1,997,753 |  |  | — |  |  | 1,997,753 |  |  | — |
CLO and other ABS |  | 528,960 |  |  | — |  |  | 528,960 |  |  | — |
CMBS |  | 256,842 |  |  | — |  |  | 256,842 |  |  | — |
RMBS |  | 525,194 |  |  | — |  |  | 525,194 |  |  | — |
Total AFS fixed income securities |  | 4,792,540 |  |  | 27,520 |  |  | 4,765,020 |  |  | — |
AFS equity securities: |  |  |  |  |  |  |  |
Common stock |  | 130,608 |  |  | 122,932 |  |  | — |  |  | 7,676 |
Preferred stock |  | 16,145 |  |  | 16,145 |  |  | — |  |  | — |
Total AFS equity securities |  | 146,753 |  |  | 139,077 |  |  | — |  |  | 7,676 |
Total AFS securities |  | 4,939,293 |  |  | 166,597 |  |  | 4,765,020 |  |  | 7,676 |
Short-term investments |  | 221,701 |  |  | 221,701 |  |  | — |  |  | — |
Total assets measured at fair value |  | $ | 5,160,994 |  |  | 388,298 |  |  | 4,765,020 |  |  | 7,676 |
1 There were no transfers of securities between Level 1 and Level 2. 2 In accordance with ASU 2015-07, investments amounting to $23.7 million at December 31, 2017, respectively, were measured at fair value using the net asset value per share (or its practical expedient) and have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to total assets measured at fair value. The following table provides a summary of the changes in the fair value of securities measured using Level 3 inputs and related quantitative information during 2017:
2017 |  |  |  |
($ in thousands) |  | CMBS |  | Common Stock
Fair value, December 31, 2016 |  | $ | — |  |  | 7,676 |
Total net (losses) gains for the period included in: |  |  |  |  |
OCI |  | 4 |  |  | — |
Net income |  | — |  |  | — |
Purchases |  | 6,550 |  |  | 3,780 |
Sales |  | — |  |  | (3,958 | )
Issuances |  | — |  |  | — |
Settlements |  | — |  |  | — |
Transfers into Level 3 |  | — |  |  | — |
Transfers out of Level 3 |  | — |  |  | (2,100 | )
Fair value, December 31, 2017 |  | $ | 6,554 |  |  | $ | 5,398 |
The following tables provide quantitative information regarding our financial assets and liabilities that were not measured, but were disclosed at fair value at December 31, 2017 and 2016:
December 31, 2017 |  |  |  | Fair Value Measurements Using
($ in thousands) |  | Assets/Liabilities Disclosed at Fair Value |  | Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Financial Assets |  |  |  |  |  |  |  |
HTM: |  |  |  |  |  |  |  |
Obligations of states and political subdivisions |  | $ | 26,261 |  |  | — |  |  | 26,261 |  |  | — |
Corporate securities |  | 17,839 |  |  | — |  |  | 12,306 |  |  | 5,533 |
Total HTM fixed income securities |  | $ | 44,100 |  |  | — |  |  | 38,567 |  |  | 5,533 |
Financial Liabilities |  |  |  |  |  |  |  |
Long-term debt: |  |  |  |  |  |  |  |
7.25% Senior Notes |  | $ | 61,391 |  |  | — |  |  | 61,391 |  |  | — |
6.70% Senior Notes |  | 116,597 |  |  | — |  |  | 116,597 |  |  | — |
5.875% Senior Notes |  | 186,332 |  |  | 186,332 |  |  | — |  |  | — |
1.61% Borrowings from FHLBNY |  | 24,270 |  |  | — |  |  | 24,270 |  |  | — |
1.56% Borrowings from FHLBNY |  | 24,210 |  |  | — |  |  | 24,210 |  |  | — |
3.03% Borrowings from FHLBI |  | 60,334 |  |  | — |  |  | 60,334 |  |  | — |
Total long-term debt |  | $ | 473,134 |  |  | 186,332 |  |  | 286,802 |  |  | — |
December 31, 2016 |  |  |  | Fair Value Measurements Using
($ in thousands) |  | Assets/Liabilities Disclosed at Fair Value |  | Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Financial Assets |  |  |  |  |  |  |  |
HTM: |  |  |  |  |  |  |  |
Obligations of states and political subdivisions |  | $ | 79,916 |  |  | — |  |  | 79,916 |  |  | — |
Corporate securities |  | 24,075 |  |  | — |  |  | 16,565 |  |  | 7,510 |
CMBS |  | 1,220 |  |  | — |  |  | 1,220 |  |  | — |
Total HTM fixed income securities |  | $ | 105,211 |  |  | — |  |  | 97,701 |  |  | 7,510 |
Financial Liabilities |  |  |  |  |  |  |  |
Long-term debt: |  |  |  |  |  |  |  |
7.25% Senior Notes |  | $ | 56,148 |  |  | — |  |  | 56,148 |  |  | — |
6.70% Senior Notes |  | 108,333 |  |  | — |  |  | 108,333 |  |  | — |
5.875% Senior Notes |  | 176,860 |  |  | 176,860 |  |  | — |  |  | — |
1.61% Borrowings from FHLBNY |  | 24,286 |  |  | — |  |  | 24,286 |  |  | — |
1.56% Borrowings from FHLBNY |  | 24,219 |  |  | — |  |  | 24,219 |  |  | — |
3.03% Borrowings from FHLBI |  | 59,313 |  |  | — |  |  | 59,313 |  |  | — |
Total long-term debt |  | $ | 449,159 |  |  | 176,860 |  |  | 272,299 |  |  | — |

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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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -URI http://asc.fasb.org/topic&trid=2155941 + Details
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