Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2021

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Components of Accumulated Other Comprehensive Income, Net of Tax

The following tables summarize those reclassification adjustments (net of taxes) for the periods indicated:

	Year Ended December 31, 2021
	Accumulated other comprehensive income (1)
Balance at December 31, 2020	$	3.4
Change in accumulated other comprehensive income before reclassifications	(1.1)
Amounts reclassified from accumulated other comprehensive income	(0.1)
Net current-period other comprehensive loss	(1.2)
Balance at December 31, 2021	$	2.2

	Year Ended December 31, 2020
	Accumulated other comprehensive income (1)
Balance at December 31, 2019	$	2.7
Change in accumulated other comprehensive income before reclassifications	0.8
Amounts reclassified from accumulated other comprehensive income	(0.1)
Net current-period other comprehensive income	0.7
Balance at December 31, 2020	$	3.4

	Year Ended December 31, 2019
		Accumulated other comprehensive income
Balance at December 31, 2018		$	1.7
Change in accumulated other comprehensive income before reclassifications		$	1.0
Amounts reclassified from accumulated other comprehensive income		$	—
Net current-period other comprehensive income		$	1.0
Balance at December 31, 2019		$	2.7

(1) Accumulated other comprehensive income consists of net unrealized gains on securities.

Summary of the Reclassifications Out of Accumulated Other Comprehensive Income

The following tables summarize the reclassifications out of AOCI for the periods indicated:

Details about AOCI components	Amount reclassified from AOCI						Affected line item in the statement where net income is presented
	Years Ended December 31,
	2021		2020		2019
Unrealized losses (gains) on securities	$	(0.1)	$	(0.1)	$	—	Net realized gains on investments
Total reclassifications for the period	$	(0.1)	$	(0.1)	$	—	Net of tax