Summary of Significant Accounting Policies (Schedule of Stock by Class) (Details) - shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Class A Common Stock | |||
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||
| Beginning Balance (in shares) | 32,636,000 | 32,077,000 | 31,525,000 |
| Employee and non-employee director stock transactions (in shares) | 1,028,000 | 559,000 | 552,000 |
| Share repurchases (in shares) | (2,449,000) | 0 | 0 |
| Ending Balance (in shares) | 31,215,000 | 32,636,000 | 32,077,000 |
| Class B Common Stock | |||
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||
| Beginning Balance (in shares) | 11,484,000 | 11,484,000 | 11,484,000 |
| Employee and non-employee director stock transactions (in shares) | 0 | 0 | 0 |
| Share repurchases (in shares) | 0 | ||
| Ending Balance (in shares) | 11,484,000 | 11,484,000 | 11,484,000 |