Statement Of Cash Flows [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Adjustments for interest income |
95,400,000
USD
|
46,100,000
USD
|
| Adjustments for dividend income |
11,300,000
USD
|
8,100,000
USD
|
| Adjustments for increase (decrease) in insurance, reinsurance and investment contract liabilities |
220,400,000
USD
|
239,700,000
USD
|
| Adjustments for amortisation expense |
200,000
USD
|
—
USD
|
| Adjustments for depreciation expense |
4,300,000
USD
|
3,100,000
USD
|
| Cash flows from (used in) financing activities [abstract] | ||
| Dividends paid to equity holders of parent, classified as financing activities |
155,300,000
USD
|
36,200,000
USD
|