Condensed Parent Company Information - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Interest expense	$ (9,523)	$ (19,562)	$ (33,903)
Net income	95,644	81,477	92,046
Parent Company
Condensed Financial Statements, Captions [Line Items]
Dividends from wholly-owned subsidiaries	25,300	63,100	29,800
Earnings of wholly-owned subsidiaries, net of dividends	75,697	20,899	65,555
Interest expense	(1,455)	(1,743)	(2,648)
All other income and (expenses), net	(3,898)	(779)	(661)
Net income	$ 95,644	$ 81,477	$ 92,046