Stockholders' Equity and Restrictions - Changes in Stock (Details) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Common Stock Class A [Member]
Class of Stock [Line Items]
Common Stock, Balance at beginning of year	53,883	53,758
Stock issued for compensation	340	122
Common Stock, Balance at end of period	54,223	53,880
Acquisition of Class A shares	0	0
Treasury Stock, Shares, Acquired	0	325
Treasury Stock
Class of Stock [Line Items]
Common Stock, Balance at beginning of year	5,330	4,937
Stock issued for compensation	0	0
Common Stock, Balance at end of period	5,330	5,262