Equity and EPS - Computations (Details) - USD ($) $ / shares in Units, $ in Thousands	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	Nov. 16, 2021
Operations:
Net income	$ 13,088	$ 31,964	$ 31,032	$ 23,628	$ 25,362	$ 37,371	$ 76,084	$ 86,361
Net loss attributable to noncontrolling interest	123			180			324	444
Income attributable to participating securities (unvested shares and units), basic	(129)			(188)			(760)	(688)
Income attributable to participating securities (unvested shares and units), diluted	(129)			(188)			(760)	(688)
Net income used in earnings per common share calculation, basic	13,082			23,620			75,648	86,117
Net income used in earnings per common share calculation, diluted	$ 13,082			$ 23,620			$ 75,648	$ 86,117
Share information:
Basic weighted average common shares (in shares)	22,066,159			22,008,381			22,056,270	22,000,026
Diluted weighted average common shares (in shares)	22,381,516			22,228,814			22,207,031	22,000,026
Basic EPS (in dollars per share)	$ 0.59			$ 1.07			$ 3.43	$ 3.91
Diluted EPS (in dollars per share)	$ 0.58			$ 1.06			$ 3.41	$ 3.91
Convertible Senior Notes, 1.88% (fixed rate) due 2041 | Convertible Debt
Share information:
Conversion price (in dollars per share)									$ 96.24
Restricted Stock Units (RSUs)
Share information:
Participating securities (in shares)							226,410	176,398