Stock-Based Compensation Plans - Summary of stock-based compensation expense, net of amounts capitalized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Pre-tax stock-based compensation expense	$ 7,559	$ 4,628	$ 18,093
Income tax benefit	882	167	3,699
Stock Options
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Pre-tax stock-based compensation expense	227	(1,892)	1,411
Share based compensation costs capitalized	100	200	400
Restricted Stock
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Pre-tax stock-based compensation expense	7,332	6,520	16,682
Share based compensation costs capitalized	$ 2,200	$ 900	$ 1,000