Municipal Bond Guarantee Insurance (Tables)

12 Months Ended

Dec. 31, 2019

Financial Guarantee Insurance Contracts, Premium Received over Contract Period [Table Text Block]

The following table presents a schedule of BAM’s future premium revenues as of December 31, 2019:



Millions	December 31, 2019
January 1, 2020 - March 31, 2020	$	4.8
April 1, 2020 - June 30, 2020	4.8
July 1, 2020 - September 30, 2020	4.6
October 1, 2020 - December 31, 2020	4.5
	18.7
2021	17.3
2022	16.3
2023	15.2
2024	14.2
2025 and thereafter	116.7
Total gross unearned insurance premiums	$	198.4

Schedule of Insured Obligations

The following table presents a schedule of BAM’s insured obligations as of December 31, 2019 and 2018:



	December 31, 2019		December 31, 2018
Contracts outstanding	8,987		7,525
Remaining weighted average contract period (in years)	10.7		10.7
Contractual debt service outstanding (in millions):
Principal	$	62,250.5	$	52,201.6
Interest and capital appreciation	31,799.7		26,560.3
Total debt service outstanding	$	94,050.2	$	78,761.9

Gross unearned insurance premiums	$	198.4	$	176.0

Schedule of Net Written Premiums

The following table presents a schedule of net written premiums and net earned premiums included in White Mountains’s HG Global/BAM segment for the years ended December 31, 2019, 2018 and 2017:



Millions	December 31, 2019		December 31, 2018		December 31, 2017
Written premiums:
Direct	$	28.1	$	44.8	$	63.2
Assumed	10.6		8.1		—
Gross written premiums	$	38.7	$	52.9	$	63.2
Earned premiums:
Direct	$	13.6	$	13.6	$	9.4
Assumed	2.7		.3		—
Gross earned premiums	$	16.3	$	13.9	$	9.4