Segment Information (Narrative) (Details) $ in Millions	12 Months Ended
Dec. 31, 2022 USD ($) Segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Operating segments \| Segment	4
Identifiable assets	$ 86.2	$ 107.1
Liabilities held-for-sale	120.4	121.7
Accident and Health Insurance Business [Member]
Segment Reporting Information [Line Items]
Identifiable assets	84.3	87.7
Liabilities held-for-sale	91.1	92.3
Income (loss) from discontinued businesses, net of taxes	(0.8)	(2.5)	$ (3.7)
Income tax benefit related to discontinued operations	$ 0.2	$ 0.7	$ 1.7

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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- Definition

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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