(7) Deposits

Deposits as of December 31, 2018 and 2017 and related interest expense for the years ended December 31, 2018, 2017 and 2016 were as follows:


	2018		2017
	(Dollars in Thousands)
Deposits:
Demand - non-interest bearing
Domestic	$	2,758,768	$	2,609,932
Foreign		696,072		633,323
Total demand non-interest bearing		3,454,840		3,243,255
Savings and interest bearing demand
Domestic		2,531,854		2,615,143
Foreign		736,383		629,988
Total savings and interest bearing demand		3,268,237		3,245,131
Time, certificates of deposit $100,000 or more
Domestic		590,895		637,006
Foreign		807,486		808,881
Less than $100,000
Domestic		323,377		354,998
Foreign		251,710		255,621
Total time, certificates of deposit		1,973,468		2,056,506
Total deposits	$	8,696,545	$	8,544,892


	2018		2017		2016
	(Dollars in Thousands)
Interest expense:
Savings and interest bearing demand
Domestic	$	11,029	$	5,453	$	3,922
Foreign		1,735		755		640
Total savings and interest bearing demand		12,764		6,208		4,562
Time, certificates of deposit $100,000 or more
Domestic		4,741		3,644		3,881
Foreign		5,798		4,105		3,929
Less than $100,000
Domestic		1,589		1,312		1,447
Foreign		968		675		706
Total time, certificates of deposit		13,096		9,736		9,963
Total interest expense on deposits	$	25,860	$	15,944	$	14,525

Scheduled maturities of time deposits as of December 31, 2018 were as follows:


	Total
	(in thousands)
2019	$	1,786,776
2020		138,105
2021		31,665
2022		15,717
2023		1,096
Thereafter		109
Total	$	1,973,468

Scheduled maturities of time deposits in amounts of $100,000 or more at December 31, 2018, were as follows:


	Total
	(in thousands)
Due within 3 months or less	$	500,836
Due after 3 months and within 6 months		337,349
Due after 6 months and within 12 months		433,628
Due after 12 months		126,568
	$	1,398,381

Time deposits that meet or exceed the FDIC insurance limit of $250,000 at December 31, 2018 and December 31, 2017 were $869,000 and $894,000, in thousands, respectively.