Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Net income	$ 6,604	$ 33,561	$ 54,490	$ 14,507	$ 40,165	$ 68,997
Less income allocated to non-controlling interests	(430)		(107)		(857)	(202)
Less income allocated to participating securities:
Non-forfeitable dividends on participating securities	(146)		(133)		(293)	(270)
Income allocated to participating securities			(185)			(137)
Total net income allocated to participating securities	(146)		(318)		(293)	(407)
Net income available to common stockholders	6,028		54,065		39,015	68,388
Net income for diluted net income per share	$ 6,028		$ 54,065		$ 39,015	$ 68,388
Reconciliation of shares
Shares for basic net income per share	41,145		39,492		41,113	39,347
Effect of dilutive securities:
Total effect of dilutive securities (in shares)	87		173		87	173
Shares for diluted net income per share	41,232		39,665		41,200	39,520
Basic net income per share (in dollars per share)	$ 0.15		$ 1.37		$ 0.95	$ 1.74
Diluted net income per share (in dollars per share)	$ 0.15		$ 1.36		$ 0.95	$ 1.73
Performance-based stock units
Effect of dilutive securities:
Stock options and performance-based stock units (in shares)	87		173		87	173