Deposits (Tables)

12 Months Ended

Dec. 31, 2019

Banking and Thrift [Abstract]

Summary of deposits

A summary of deposits follows:

	December 31, 2019				December 31, 2018
	Amount		Weighted Average Rate		Amount		Weighted Average Rate
	(Dollars in Thousands)
Demand checking accounts	$	1,141,578	—	%	$	1,033,551	—	%
NOW accounts	371,380		0.11	%	336,317		0.10	%
Savings accounts	613,467		0.46	%	619,961		0.32	%
Money market accounts	1,682,005		1.15	%	1,675,050		1.18	%
Total core deposit accounts	3,808,430		0.59	%	3,664,879		0.60	%
Certificate of deposit accounts maturing:
Within six months	730,512		2.24	%	475,303		1.20	%
After six months but within 1 year	650,461		2.24	%	562,018		1.40	%
After 1 year but within 2 years	495,509		2.26	%	538,435		1.85	%
After 2 years but within 3 years	56,508		2.19	%	95,806		2.16	%
After 3 years but within 4 years	58,492		2.64	%	46,027		1.73	%
After 4 years but within 5 years	29,759		2.58	%	71,556		2.57	%
5+ Years	401		2.19	%	20		1.98	%
Total certificate of deposit accounts	2,021,642		2.26	%	1,789,165		1.58	%
Total deposits	$	5,830,072	1.17	%	$	5,454,044	0.92	%

Schedule of interest expense on deposit balances

Interest expense on deposit balances is summarized as follows:

	Year Ended December 31,
	2019		2018		2017
	(In Thousands)
Interest-bearing deposits:
NOW accounts	$	436	$	283	$	225
Savings accounts	2,900		1,804		1,297
Money market accounts	21,206		15,369		8,863
Certificate of deposit accounts	45,073		24,522		12,903
Total interest-bearing deposits	$	69,615	$	41,978	$	23,288