Transactions with Affiliates and Related Parties - Loans to Executive Officers, Directors and Affiliates (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Changes in loans executive officers, directors and affiliates
Balance at beginning of year	$ 66,088	$ 61,603	$ 94,466
New loans made	22,682	6,756	3,762
Repayments	(3,490)	(2,271)	(36,625)
Balance at end of year	$ 85,280	$ 66,088	$ 61,603