Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended							9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Net income	$ 13,389	$ 54,490	$ 14,507	$ 12,930	$ 11,114	$ 18,330	$ 13,850	$ 82,386	$ 43,294
Less income allocated to non-controlling interests	(99)				(92)			(301)	(271)
Less income allocated to participating securities:
Non-forfeitable dividends on participating securities	(131)				(113)			(401)	(346)
Income allocated to participating securities								(80)
Total net income allocated to participating securities	(131)				(113)			(481)	(346)
Net income available to common stockholders	13,159				10,909			81,604	42,677
Net income for diluted net income per share	$ 13,159				$ 10,909			$ 81,604	$ 42,677
Reconciliation of shares
Shares for basic net income per share	40,270,000				39,177,000			39,658,000	39,149,000
Effect of dilutive securities:
Total effect of dilutive securities (in shares)	282,000							281,000
Shares for diluted net income per share	40,552,000				39,177,000			39,939,000	39,149,000
Basic net income per share (in dollars per share)	$ 0.33				$ 0.28			$ 2.06	$ 1.09
Diluted net income per share (in dollars per share)	$ 0.32				$ 0.28			$ 2.04	$ 1.09
Stock options
Effect of dilutive securities:
Stock options and performance-based stock units (in shares)	1,000
Performance-based stock units
Effect of dilutive securities:
Stock options and performance-based stock units (in shares)	281,000				0			281,000	0