Transactions with Affiliates and Related Parties - Loans to Executive Officers, Directors and Affiliates (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Changes in loans executive officers, directors and affiliates
Balance at beginning of year	$ 85,280	$ 66,088	$ 61,603
New loans made	18,133	22,682	6,756
Repayments	(12,187)	(3,490)	(2,271)
Balance at end of year	$ 91,226	$ 85,280	$ 66,088