Deposits - Deposit Account Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Amount
Negotiable orders of withdrawal and interest-bearing deposits	$ 573,927	$ 458,012
Non-interest bearing checking	387,409	395,375
Total transaction	961,336	853,387
Money market	651,159	741,939
Savings	747,186	594,290
Total savings	1,398,345	1,336,229
Under $100,000	563,303	599,245
$100,000 or more	485,249	497,651
Total certificates of deposit	1,048,552	1,096,896
Total deposits	$ 3,408,233	$ 3,286,512
Weighted Average Rate
Negotiable orders of withdrawal and interest-bearing deposits	0.87%	0.68%
Total transaction	0.52%	0.36%
Money market	1.18%	1.12%
Savings	1.02%	0.90%
Total savings	1.09%	1.02%
Under $100,000	1.86%	1.91%
$100,000 or more	1.98%	2.01%
Total certificates of deposit	1.92%	1.96%
Total deposits	1.18%	1.16%