Reinsurance (Summary of Reinsurance Activity) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Insurance [Abstract]
Net assumed written premiums	$ 17.3	$ 11.9	$ 34.6	$ 27.7
Net premiums earned	14.2	13.1	27.1	25.3
Provision for claims	9.3	8.3	18.1	14.9
Amortization of capitalized acquisition costs	$ 0.2	$ 0.4	$ 0.6	$ 0.7

The amount of expense recognized in the current period that reflects the allocation of capitalized costs associated with acquisition of business. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of written premiums assumed from other entities.

+ References

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Amount, after effects of policies assumed or ceded, of expense related to the provision for policy benefits and costs incurred.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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