Deposits - Interest Expense on Deposits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets Sold under Agreements to Repurchase [Line Items]
Interest expense on deposits	$ 29,109	$ 55,246	$ 61,551
Demand (including money market accounts)
Assets Sold under Agreements to Repurchase [Line Items]
Interest expense on deposits	10,077	15,556	19,922
Savings and club deposits
Assets Sold under Agreements to Repurchase [Line Items]
Interest expense on deposits	731	1,023	770
Certificates of deposit
Assets Sold under Agreements to Repurchase [Line Items]
Interest expense on deposits	$ 18,301	$ 38,667	$ 40,859