Note 6 - Stockholders' Equity (Details Textual) $ / shares in Units, $ in Millions |
3 Months Ended | 6 Months Ended | |||||
|---|---|---|---|---|---|---|---|
|
Jun. 30, 2026
$ / shares
shares
|
Mar. 31, 2026
$ / shares
|
Jun. 30, 2025
$ / shares
|
Mar. 31, 2025
$ / shares
|
Jun. 30, 2026
USD ($)
$ / shares
shares
|
Jun. 30, 2025
USD ($)
$ / shares
|
Dec. 31, 2025
shares
|
|
| Capital Units, Authorized | 245,000,000 | 245,000,000 | |||||
| Common Stock, Shares Authorized | 200,000,000 | 200,000,000 | 200,000,000 | ||||
| Preferred Stock, Shares Authorized | 20,000,000 | 20,000,000 | |||||
| Common Stock, Voting Rights, Votes Per Share | 1 | 1 | |||||
| Common Stock, Dividends, Per Share, Declared | $ / shares | $ 0.08 | $ 0.08 | $ 0.08 | $ 0.08 | $ 0.16 | $ 0.16 | |
| Payments of Ordinary Dividends, Common Stock | $ | $ 17 | $ 16 | |||||
| Common Stock, Capital Shares Reserved for Future Issuance | 15,500,000 | 15,500,000 | |||||
| Class A Common Stock (No Par Value) [Member] | |||||||
| Common Stock, Shares Authorized | 25,000,000 | 25,000,000 | 25,000,000 | ||||
| Common Stock, Voting Rights, Votes Per Share | 10 | 10 | |||||
| Common Stock, Capital Shares Reserved for Future Issuance | 2,600,000 | 2,600,000 | |||||