Significant transactions (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Feb. 12, 2026 |
Jan. 01, 2026 |
Oct. 03, 2025 |
Dec. 31, 2025 |
Jun. 30, 2026 |
|
| Business Interruption Loss [Line Items] | |||||
| Assets held for sale | $ 115.2 | $ 0.0 | |||
| Goodwill | $ 0.0 | 18.6 | |||
| Payments to purchase equity interests | $ 47.0 | ||||
| Assist America | |||||
| Business Interruption Loss [Line Items] | |||||
| Aggregate consideration | $ 44.0 | ||||
| Goodwill | 18.6 | ||||
| Arcadian Holdings Limited | |||||
| Business Interruption Loss [Line Items] | |||||
| Equity method investment, amount sold | $ 140.4 | ||||
| Equity method investment, expected gain on disposal | $ 25.2 | ||||
| Variable Interest Entity, Primary Beneficiary, Arcadian Risk Capital Ltd | |||||
| Business Interruption Loss [Line Items] | |||||
| VIE, ownership percentage | 49.00% | 49.00% |
| X | ||||||||||
- Definition Amount classified as assets attributable to disposal group held for sale or disposed of. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of an equity method investment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of the entity's equity method investment which has been sold. No definition available.
|
| X | ||||||||||
- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|