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Municipal Bond Guarantee (Tables)
3 Months Ended
Mar. 31, 2019
Guarantees [Abstract]  
Schedule of Municipal Bond Guarantee Insured Obligations The following table presents a schedule of BAM’s insured obligations as of March 31, 2019 and December 31, 2018:
 
 
March 31, 2019
 
December 31, 2018
Contracts outstanding
 
7,786

 
7,525

Remaining weighted average contract period outstanding (in years)
 
10.7

 
10.7

Contractual debt service outstanding (in millions):
 
 
 
 
Principal
 
$
53,715.2

 
$
52,201.6

Interest
 
27,348.9

 
26,560.3

Total debt service outstanding
 
$
81,064.1

 
$
78,761.9

 
 
 
 
 
Gross unearned insurance premiums
 
$
179.6

 
$
176.0

Financial Guarantee Insurance Contracts, Premium Received over Contract Period The following table presents a schedule of BAM’s future premium revenues as of March 31, 2019:
Millions
 
March 31, 2019
April 1, 2019 - December 31, 2019
 
$
12.2

 
 
 
January 1, 2020 - March 31, 2020
 
3.9

April 1, 2020 - June 30, 2020
 
3.9

July 1, 2020 - September 30, 2020
 
3.9

October 1, 2020 - December 31, 2020
 
3.8

     Total 2020
 
15.5

 
 
 
2021
 
14.5

2022
 
13.6

2023
 
12.8

2024
 
12.0

2025 and thereafter
 
99.0

Total gross unearned insurance premiums
 
$
179.6


Schedule of Net Written Premiums The following table presents a schedule of net written premiums included in White Mountains’s HG Global/BAM segment for the three months ended March 31, 2019 and 2018:
 
 
Three Months Ended March 31,
Millions
 
2019
 
2018
Written premiums:
 
 
 
 
Direct
 
$
7.9

 
$
6.4

Assumed
 

 

Gross written premiums
 
$
7.9

 
$
6.4

Earned premiums:
 
 
 
 
Direct
 
$
3.7

 
$
3.0

Assumed
 
0.5

 

Gross earned premiums
 
$
4.2

 
$
3.0