Deposits (Tables)

12 Months Ended

Dec. 31, 2020

Deposits, by Component, Alternative [Abstract]

Deposit Liabilities, Type

The following table presents the composition of deposits at December 31 and interest expense for the years ended December 31:

	2020				2019				2018
(dollars in thousands)	Balance		Interest Expense		Balance		Interest Expense		Balance		Interest Expense
Noninterest-bearing demand	$	2,261,994	$	—	$	1,698,082	$	—	$	1,421,156	$	—
Interest-bearing demand	864,510		2,681		962,331		3,915		573,693		93
Money market	1,937,063		11,645		1,949,811		30,236		1,482,065		20,018
Savings	969,508		972		830,919		1,928		784,970		1,773
Certificates of deposit	1,387,463		20,688		1,595,433		26,947		1,412,038		18,972
Total	$	7,420,538	$	35,986	$	7,036,576	$	63,026	$	5,673,922	$	40,856

Time Deposit Maturities

The following table indicates the scheduled maturities of certificates of deposit at December 31, 2020:

(dollars in thousands)	Amount
2021	$	1,182,938
2022	122,596
2023	27,825
2024	17,415
2025	33,149
Thereafter	3,540
Total	$	1,387,463