Summary of Significant Accounting Policies - Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary of Significant Accounting Policies
Net income	$ 81,793	$ 34,674	$ 41,279
Weighted average common shares outstanding (in shares)	31,550	29,301	28,709
Total weighted average common shares outstanding and common stock equivalents (in shares)	31,550	29,301	28,709
Basic earnings (loss) per common share (in dollars per share)	$ 2.59	$ 1.18	$ 1.44
Diluted earnings (loss) per common share (in dollars per share)	$ 2.59	$ 1.18	$ 1.44
Dividend Payout ratio	32.40%	71.20%	58.30%