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Financial Guarantees in Force (Tables) | 12 Months Ended
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Dec. 31, 2017
Guarantees [Abstract] |
Schedule of Financial Guarantee Insurance In Force By Bond Type | As of December 31, 2017 and 2016, the guarantee portfolio was diversified by type of guaranteed bond as shown in the following table:
Net Par Outstanding December 31, | 2017 |  | 2016
Public Finance: |  |  |
Lease and tax-backed revenue | $ | 11,893,000 |  |  | $ | 15,688,000 |
Housing revenue | 6,312,000 |  |  | 6,508,000 |
General obligation | 6,257,000 |  |  | 9,867,000 |
Utility revenue | 2,212,000 |  |  | 4,298,000 |
Transportation revenue | 2,002,000 |  |  | 3,860,000 |
Higher education | 1,642,000 |  |  | 2,339,000 |
Health care revenue | 807,000 |  |  | 1,484,000 |
Other | 963,000 |  |  | 1,018,000 |
Total Public Finance | 32,088,000 |  |  | 45,062,000 |
Structured Finance: |  |  |
Mortgage-backed and home equity | 7,267,000 |  |  | 9,383,000 |
Investor-owned utilities | 3,274,000 |  |  | 3,833,000 |
Student loan | 1,238,000 |  |  | 1,388,000 |
Asset-backed (1) | 443,000 |  |  | 565,000 |
CDOs | 33,000 |  |  | 132,000 |
Other | 1,561,000 |  |  | 1,650,000 |
Total Structured Finance | 13,816,000 |  |  | 16,951,000 |
International Finance: |  |  |
Investor-owned and public utilities | 5,696,000 |  |  | 6,168,000 |
Sovereign/sub-sovereign | 5,664,000 |  |  | 5,211,000 |
Asset-backed (1) | 2,609,000 |  |  | 2,951,000 |
Transportation | 1,777,000 |  |  | 1,700,000 |
Mortgage-backed and home equity | 246,000 |  |  | 254,000 |
CDOs | — |  |  | 186,000 |
Other | 820,000 |  |  | 863,000 |
Total International Finance | 16,812,000 |  |  | 17,333,000 |
Total | $ | 62,716,000 |  |  | $ | 79,346,000 |
(1) | At December 31, 2017 and 2016, all asset-backed net par amounts outstanding relate to commercial asset-based transactions.
Schedule of International Financial Guarantee Insurance In Force Portfolio By Location Of Risk | As of December 31, 2017 and 2016, the International Finance guaranteed portfolio by location of risk was as outlined in the table below:
Net Par Outstanding December 31, | 2017 |  | 2016
United Kingdom | $ | 13,554,000 |  |  | $ | 12,798,000 |
Italy | 877,000 |  |  | 898,000 |
Austria | 770,000 |  |  | 696,000 |
Australia | 608,000 |  |  | 1,393,000 |
France | 329,000 |  |  | 286,000 |
Internationally diversified (1) | 368,000 |  |  | 648,000 |
Other international | 306,000 |  |  | 614,000 |
Total International Finance | $ | 16,812,000 |  |  | $ | 17,333,000 |
(1) | Internationally diversified obligations represent pools of geographically diversified exposures which may include components of U.S. exposure.

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