Municipal Bond Guarantee Insurance (Tables)

12 Months Ended

Dec. 31, 2022

Insurance [Abstract]

Schedule of Insured Obligations

The following table presents a schedule of BAM’s insured obligations as of December 31, 2022 and 2021:

	December 31,
	2022		2021
Contracts outstanding	13,382		12,350
Remaining weighted average contract period (in years)	10.8		10.8
Contractual debt service outstanding (in millions):
Principal	$	99,996.9	$	89,196.5
Interest	48,880.6		41,486.5
Total debt service outstanding	$	148,877.5	$	130,683.0
Gross unearned insurance premiums (in millions)	$	298.3	$	266.3

Schedule of BAM’s future premium revenues

The following table presents a schedule of BAM’s future premium revenues as of December 31, 2022:

Millions	December 31, 2022
January 1, 2023 - March 31, 2023	$	7.0
April 1, 2023 - June 30, 2023	7.0
July 1, 2023 - September 30, 2023	6.8
October 1, 2023 - December 31, 2023	6.7
	27.5
2024	25.9
2025	24.2
2026	22.6
2027	21.0
2028 and thereafter	177.1
Total gross unearned insurance premiums	$	298.3

Schedule of Net Written Premiums

The following table presents a schedule of written premiums and earned premiums included in White Mountains’s HG Global/BAM segment for the years ended December 31, 2022, 2021 and 2020:

	December 31,
Millions	2022		2021		2020
Written premiums:
Direct	$	63.8	$	51.0	$	61.5
Assumed	1.3		4.6		.2
Gross written premiums (1)	$	65.1	$	55.6	$	61.7
Earned premiums:
Direct	$	28.6	$	23.2	$	19.4
Assumed	4.7		3.7		3.4
Gross earned premiums (1)	$	33.3	$	26.9	$	22.8

(1) There are no ceded premium amounts in the periods presented and Gross earned premium are equivalent to net written premiums and net earned premiums.