The Company, basis of presentation and significant accounting policies - Concentration of risk (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| U.S. Medicare and Medicaid (excluding Medicare Part C, also known as Medicare Advantage plans) | |||
| Concentration of Risk | |||
| Percentage of revenues which were earned and subject to regulations | 16.00% | 18.00% | 18.00% |