Earnings per Share Repurchase of Common Stock (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2015
Stock Repurchased and Retired During Period, Value	$ 260,000	$ 2,690,000	$ 10,400,000	$ 2,070,000	$ 18,830,000	$ 9,060,000
10b5-1 share repurchase program [Member]
Stock Repurchase Program, Authorized Amount	$ 250,000,000						$ 250,000,000		$ 50,000,000
Stock Repurchased and Retired During Period, Shares	10,506			76,167			462,388	1,004,154
Stock Repurchased and Retired During Period, Value	$ 300,000			$ 2,100,000			$ 13,400,000	$ 30,000,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 92,300,000						$ 92,300,000