Securities - Equity Securities - unrealized gains and losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Gains recognized during the period on equity securities	$ 0	$ 0	$ 16,425
Less: Gains (losses) recognized during the period on equity securities sold during the period	0	0	(3,000)
Unrealized gains recognized during the reporting period on equity securities still held at the reporting date	$ 0	$ 0	$ 13,425