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Schedule I-Summary of Investments Other-Than-Investments in Related Parties
12 Months Ended
Dec. 31, 2018
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract]  
Schedule I-Summary of Investments Other-Than-Investments in Related Parties
Schedule I — Summary of Investments
Other-Than-Investments in Related Parties
 
 
Cost or
Amortized
Cost
 
Fair
Value
 
Amount at
which shown in
balance sheet
 
 
(in millions)
Fixed maturity securities:
U.S. government and government agencies and authorities
 
$
0.8

 
$
0.9

 
$
0.9

States, municipalities and political subdivisions
 
3.0

 
3.2

 
3.2

Foreign governments
 
0.2

 
0.3

 
0.3

Asset-backed
 
7.9

 
7.9

 
7.9

Residential mortgage-backed
 
2.4

 
2.5

 
2.5

U.S. corporate
 
24.3

 
25.4

 
25.4

Foreign corporate
 
8.1

 
8.5

 
8.5

Total fixed maturity securities
 
46.7

 
48.7

 
48.7

Short-term investments
 
0.7

 
0.7

 
0.7

Total investments
 
$
47.4

 
$
49.4

 
$
49.4